diff --git a/.buildinfo b/.buildinfo
index 571feee..0dacae8 100644
--- a/.buildinfo
+++ b/.buildinfo
@@ -1,4 +1,4 @@
 # Sphinx build info version 1
 # This file hashes the configuration used when building these files. When it is not found, a full rebuild will be done.
-config: ebbaedd3cc84f8ea288e53a7facdc95a
+config: cad286db65c3a2c613fd4a63f3a2e7e2
 tags: 645f666f9bcd5a90fca523b33c5a78b7
diff --git a/FAQ.html b/FAQ.html
index b5325e0..393c018 100644
--- a/FAQ.html
+++ b/FAQ.html
@@ -1,10 +1,10 @@
 <!DOCTYPE html>
 <html class="writer-html5" lang="en" >
 <head>
-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>FAQ &mdash; PyTables 3.9.0 documentation</title>
+  <title>FAQ &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="_static/graphviz.css" type="text/css" />
@@ -17,6 +17,7 @@
         <script src="_static/underscore.js"></script>
         <script src="_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="_static/doctools.js"></script>
+        <script src="_static/sphinx_highlight.js"></script>
     <script src="_static/js/theme.js"></script>
     <link rel="index" title="Index" href="genindex.html" />
     <link rel="search" title="Search" href="search.html" />
@@ -41,15 +42,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="index.html">
-            <img src="_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="index.html">
+            
+              <img src="_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -122,8 +127,8 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="index.html" class="icon icon-home"></a> &raquo;</li>
-      <li>FAQ</li>
+      <li><a href="index.html" class="icon icon-home" aria-label="Home"></a></li>
+      <li class="breadcrumb-item active">FAQ</li>
       <li class="wy-breadcrumbs-aside">
             <a href="_sources/FAQ.rst.txt" rel="nofollow"> View page source</a>
       </li>
diff --git a/MIGRATING_TO_2.x.html b/MIGRATING_TO_2.x.html
index 0ac538f..88afef8 100644
--- a/MIGRATING_TO_2.x.html
+++ b/MIGRATING_TO_2.x.html
@@ -1,10 +1,10 @@
 <!DOCTYPE html>
 <html class="writer-html5" lang="en" >
 <head>
-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Migrating from PyTables 1.x to 2.x &mdash; PyTables 3.9.0 documentation</title>
+  <title>Migrating from PyTables 1.x to 2.x &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="_static/graphviz.css" type="text/css" />
@@ -17,6 +17,7 @@
         <script src="_static/underscore.js"></script>
         <script src="_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="_static/doctools.js"></script>
+        <script src="_static/sphinx_highlight.js"></script>
     <script src="_static/js/theme.js"></script>
     <link rel="index" title="Index" href="genindex.html" />
     <link rel="search" title="Search" href="search.html" />
@@ -41,15 +42,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="index.html">
-            <img src="_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="index.html">
+            
+              <img src="_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -105,9 +110,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="release_notes.html">PyTables Release Notes</a> &raquo;</li>
-      <li>Migrating from PyTables 1.x to 2.x</li>
+      <li><a href="index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="release_notes.html">PyTables Release Notes</a></li>
+      <li class="breadcrumb-item active">Migrating from PyTables 1.x to 2.x</li>
       <li class="wy-breadcrumbs-aside">
             <a href="_sources/MIGRATING_TO_2.x.rst.txt" rel="nofollow"> View page source</a>
       </li>
diff --git a/MIGRATING_TO_3.x.html b/MIGRATING_TO_3.x.html
index 5331aac..e2343e8 100644
--- a/MIGRATING_TO_3.x.html
+++ b/MIGRATING_TO_3.x.html
@@ -1,10 +1,10 @@
 <!DOCTYPE html>
 <html class="writer-html5" lang="en" >
 <head>
-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Migrating from PyTables 2.x to 3.x &mdash; PyTables 3.9.0 documentation</title>
+  <title>Migrating from PyTables 2.x to 3.x &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="_static/graphviz.css" type="text/css" />
@@ -17,6 +17,7 @@
         <script src="_static/underscore.js"></script>
         <script src="_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="_static/doctools.js"></script>
+        <script src="_static/sphinx_highlight.js"></script>
     <script src="_static/js/theme.js"></script>
     <link rel="index" title="Index" href="genindex.html" />
     <link rel="search" title="Search" href="search.html" />
@@ -41,15 +42,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="index.html">
-            <img src="_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="index.html">
+            
+              <img src="_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -108,8 +113,8 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="index.html" class="icon icon-home"></a> &raquo;</li>
-      <li>Migrating from PyTables 2.x to 3.x</li>
+      <li><a href="index.html" class="icon icon-home" aria-label="Home"></a></li>
+      <li class="breadcrumb-item active">Migrating from PyTables 2.x to 3.x</li>
       <li class="wy-breadcrumbs-aside">
             <a href="_sources/MIGRATING_TO_3.x.rst.txt" rel="nofollow"> View page source</a>
       </li>
@@ -187,32 +192,32 @@ <h3>PEP 8 Compliance<a class="headerlink" href="#pep-8-compliance" title="Permal
 was implemented using regular expressions rather than a fancier AST-based
 method. By using regexes, <code class="docutils literal notranslate"><span class="pre">pt2to3</span></code> works on Python and Cython code.</p>
 <p><code class="docutils literal notranslate"><span class="pre">pt2to3</span></code> <strong>help:</strong></p>
-<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>usage: pt2to3 <span class="o">[</span>-h<span class="o">]</span> <span class="o">[</span>-r<span class="o">]</span> <span class="o">[</span>-p<span class="o">]</span> <span class="o">[</span>-o OUTPUT<span class="o">]</span> <span class="o">[</span>-i<span class="o">]</span> filename
+<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>usage:<span class="w"> </span>pt2to3<span class="w"> </span><span class="o">[</span>-h<span class="o">]</span><span class="w"> </span><span class="o">[</span>-r<span class="o">]</span><span class="w"> </span><span class="o">[</span>-p<span class="o">]</span><span class="w"> </span><span class="o">[</span>-o<span class="w"> </span>OUTPUT<span class="o">]</span><span class="w"> </span><span class="o">[</span>-i<span class="o">]</span><span class="w"> </span>filename
 
-PyTables <span class="m">2</span>.x -&gt; <span class="m">3</span>.x API transition tool This tool displays to standard out, so
-it is common to pipe this to another file: $ pt2to3 oldfile.py &gt; newfile.py
+PyTables<span class="w"> </span><span class="m">2</span>.x<span class="w"> </span>-&gt;<span class="w"> </span><span class="m">3</span>.x<span class="w"> </span>API<span class="w"> </span>transition<span class="w"> </span>tool<span class="w"> </span>This<span class="w"> </span>tool<span class="w"> </span>displays<span class="w"> </span>to<span class="w"> </span>standard<span class="w"> </span>out,<span class="w"> </span>so
+it<span class="w"> </span>is<span class="w"> </span>common<span class="w"> </span>to<span class="w"> </span>pipe<span class="w"> </span>this<span class="w"> </span>to<span class="w"> </span>another<span class="w"> </span>file:<span class="w"> </span>$<span class="w"> </span>pt2to3<span class="w"> </span>oldfile.py<span class="w"> </span>&gt;<span class="w"> </span>newfile.py
 
-positional arguments:
-  filename              path to input file.
+positional<span class="w"> </span>arguments:
+<span class="w">  </span>filename<span class="w">              </span>path<span class="w"> </span>to<span class="w"> </span>input<span class="w"> </span>file.
 
-optional arguments:
-  -h, --help            show this <span class="nb">help</span> message and <span class="nb">exit</span>
-  -r, --reverse         reverts changes, going from <span class="m">3</span>.x -&gt; <span class="m">2</span>.x.
-  -p, --no-ignore-previous
-                        ignores previous_api<span class="o">()</span> calls.
-  -o OUTPUT             output file to write to.
-  -i, --inplace         overwrites the file <span class="k">in</span>-place.
+optional<span class="w"> </span>arguments:
+<span class="w">  </span>-h,<span class="w"> </span>--help<span class="w">            </span>show<span class="w"> </span>this<span class="w"> </span><span class="nb">help</span><span class="w"> </span>message<span class="w"> </span>and<span class="w"> </span><span class="nb">exit</span>
+<span class="w">  </span>-r,<span class="w"> </span>--reverse<span class="w">         </span>reverts<span class="w"> </span>changes,<span class="w"> </span>going<span class="w"> </span>from<span class="w"> </span><span class="m">3</span>.x<span class="w"> </span>-&gt;<span class="w"> </span><span class="m">2</span>.x.
+<span class="w">  </span>-p,<span class="w"> </span>--no-ignore-previous
+<span class="w">                        </span>ignores<span class="w"> </span>previous_api<span class="o">()</span><span class="w"> </span>calls.
+<span class="w">  </span>-o<span class="w"> </span>OUTPUT<span class="w">             </span>output<span class="w"> </span>file<span class="w"> </span>to<span class="w"> </span>write<span class="w"> </span>to.
+<span class="w">  </span>-i,<span class="w"> </span>--inplace<span class="w">         </span>overwrites<span class="w"> </span>the<span class="w"> </span>file<span class="w"> </span><span class="k">in</span>-place.
 </pre></div>
 </div>
 <p>Note that <code class="docutils literal notranslate"><span class="pre">pt2to3</span></code> only works on a single file, not a directory.  However,
 a simple BASH script may be written to run <code class="docutils literal notranslate"><span class="pre">pt2to3</span></code> over an entire directory
 and all sub-directories:</p>
 <div class="highlight-bash notranslate"><div class="highlight"><pre><span></span><span class="ch">#!/bin/bash</span>
-<span class="k">for</span> f <span class="k">in</span> <span class="k">$(</span>find .<span class="k">)</span>
+<span class="k">for</span><span class="w"> </span>f<span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="k">$(</span>find<span class="w"> </span>.<span class="k">)</span>
 <span class="k">do</span>
-    <span class="nb">echo</span> <span class="nv">$f</span>
-    pt2to3 <span class="nv">$f</span> &gt; temp.txt
-    mv temp.txt <span class="nv">$f</span>
+<span class="w">    </span><span class="nb">echo</span><span class="w"> </span><span class="nv">$f</span>
+<span class="w">    </span>pt2to3<span class="w"> </span><span class="nv">$f</span><span class="w"> </span>&gt;<span class="w"> </span>temp.txt
+<span class="w">    </span>mv<span class="w"> </span>temp.txt<span class="w"> </span><span class="nv">$f</span>
 <span class="k">done</span>
 </pre></div>
 </div>
diff --git a/_modules/index.html b/_modules/index.html
index 9bbaa4b..2d31e8e 100644
--- a/_modules/index.html
+++ b/_modules/index.html
@@ -3,7 +3,7 @@
 <head>
   <meta charset="utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Overview: module code &mdash; PyTables 3.9.0 documentation</title>
+  <title>Overview: module code &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../_static/graphviz.css" type="text/css" />
@@ -16,6 +16,7 @@
         <script src="../_static/underscore.js"></script>
         <script src="../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../_static/doctools.js"></script>
+        <script src="../_static/sphinx_highlight.js"></script>
     <script src="../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../genindex.html" />
     <link rel="search" title="Search" href="../search.html" />
@@ -38,15 +39,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../index.html">
-            <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../index.html">
+            
+              <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -78,8 +83,8 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../index.html" class="icon icon-home"></a> &raquo;</li>
-      <li>Overview: module code</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+      <li class="breadcrumb-item active">Overview: module code</li>
       <li class="wy-breadcrumbs-aside">
       </li>
   </ul>
diff --git a/_modules/tables/array.html b/_modules/tables/array.html
index 39a8c85..c7df31f 100644
--- a/_modules/tables/array.html
+++ b/_modules/tables/array.html
@@ -3,7 +3,7 @@
 <head>
   <meta charset="utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>tables.array &mdash; PyTables 3.8.1.dev0 documentation</title>
+  <title>tables.array &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/graphviz.css" type="text/css" />
@@ -16,6 +16,7 @@
         <script src="../../_static/underscore.js"></script>
         <script src="../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../_static/doctools.js"></script>
+        <script src="../../_static/sphinx_highlight.js"></script>
     <script src="../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../genindex.html" />
     <link rel="search" title="Search" href="../../search.html" />
@@ -38,15 +39,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../index.html">
-            <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../index.html">
+            
+              <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.8.1.dev0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -78,9 +83,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../index.html">Module code</a> &raquo;</li>
-      <li>tables.array</li>
+      <li><a href="../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../index.html">Module code</a></li>
+      <li class="breadcrumb-item active">tables.array</li>
       <li class="wy-breadcrumbs-aside">
       </li>
   </ul>
@@ -114,7 +119,7 @@ <h1>Source code for tables.array</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="Array"><a class="viewcode-back" href="../../usersguide/libref/homogenous_storage.html#tables.Array">[docs]</a><span class="k">class</span> <span class="nc">Array</span><span class="p">(</span><span class="n">hdf5extension</span><span class="o">.</span><span class="n">Array</span><span class="p">,</span> <span class="n">Leaf</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;This class represents homogeneous datasets in an HDF5 file.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;This class represents homogeneous datasets in an HDF5 file.</span>
 
 <span class="sd">    This class provides methods to write or read data to or from array objects</span>
 <span class="sd">    in the file. This class does not allow you neither to enlarge nor compress</span>
@@ -176,12 +181,12 @@ <h1>Source code for tables.array</h1><div class="highlight"><pre>
 
     <span class="nd">@lazyattr</span>
     <span class="k">def</span> <span class="nf">dtype</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The NumPy ``dtype`` that most closely matches this array.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The NumPy ``dtype`` that most closely matches this array.&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">atom</span><span class="o">.</span><span class="n">dtype</span>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">nrows</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The number of rows in the array.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The number of rows in the array.&quot;&quot;&quot;</span>
         <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">shape</span> <span class="o">==</span> <span class="p">():</span>
             <span class="k">return</span> <span class="n">SizeType</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>  <span class="c1"># scalar case</span>
         <span class="k">else</span><span class="p">:</span>
@@ -189,7 +194,7 @@ <h1>Source code for tables.array</h1><div class="highlight"><pre>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">rowsize</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The size of the rows in bytes in dimensions orthogonal to</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The size of the rows in bytes in dimensions orthogonal to</span>
 <span class="sd">        *maindim*.&quot;&quot;&quot;</span>
         <span class="n">maindim</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">maindim</span>
         <span class="n">rowsize</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">atom</span><span class="o">.</span><span class="n">size</span>
@@ -200,7 +205,7 @@ <h1>Source code for tables.array</h1><div class="highlight"><pre>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">size_in_memory</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The size of this array&#39;s data in bytes when it is fully loaded into</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The size of this array&#39;s data in bytes when it is fully loaded into</span>
 <span class="sd">        memory.&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">nrows</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">rowsize</span>
 
@@ -210,13 +215,13 @@ <h1>Source code for tables.array</h1><div class="highlight"><pre>
                  <span class="n">track_times</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_version</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;The object version of this array.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The object version of this array.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_new</span> <span class="o">=</span> <span class="n">new</span> <span class="o">=</span> <span class="n">obj</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Is this the first time the node has been created?&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Is this the first time the node has been created?&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_new_title</span> <span class="o">=</span> <span class="n">title</span>
-        <span class="sd">&quot;&quot;&quot;New title for this node.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;New title for this node.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_obj</span> <span class="o">=</span> <span class="n">obj</span>
-        <span class="sd">&quot;&quot;&quot;The object to be stored in the array.  It can be any of numpy,</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The object to be stored in the array.  It can be any of numpy,</span>
 <span class="sd">        list, tuple, string, integer of floating point types, provided</span>
 <span class="sd">        that they are regular (i.e. they are not like ``[[1, 2], 2]``).</span>
 
@@ -226,46 +231,46 @@ <h1>Source code for tables.array</h1><div class="highlight"><pre>
 <span class="sd">        &quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_convert</span> <span class="o">=</span> <span class="kc">True</span>
-        <span class="sd">&quot;&quot;&quot;Whether the ``Array`` object must be converted or not.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Whether the ``Array`` object must be converted or not.&quot;&quot;&quot;</span>
 
         <span class="c1"># Miscellaneous iteration rubbish.</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_start</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Starting row for the current iteration.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Starting row for the current iteration.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_stop</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Stopping row for the current iteration.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Stopping row for the current iteration.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_step</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Step size for the current iteration.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Step size for the current iteration.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_nrowsread</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Number of rows read up to the current state of iteration.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Number of rows read up to the current state of iteration.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_startb</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Starting row for current buffer.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Starting row for current buffer.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_stopb</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Stopping row for current buffer. &quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Stopping row for current buffer. &quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_row</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Current row in iterators (sentinel).&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Current row in iterators (sentinel).&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_init</span> <span class="o">=</span> <span class="kc">False</span>
-        <span class="sd">&quot;&quot;&quot;Whether we are in the middle of an iteration or not (sentinel).&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Whether we are in the middle of an iteration or not (sentinel).&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">listarr</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Current buffer in iterators.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Current buffer in iterators.&quot;&quot;&quot;</span>
 
         <span class="c1"># Documented (*public*) attributes.</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">atom</span> <span class="o">=</span> <span class="n">_atom</span>
-        <span class="sd">&quot;&quot;&quot;An Atom (see :ref:`AtomClassDescr`) instance representing the *type*</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;An Atom (see :ref:`AtomClassDescr`) instance representing the *type*</span>
 <span class="sd">        and *shape* of the atomic objects to be saved.</span>
 <span class="sd">        &quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">shape</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;The shape of the stored array.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The shape of the stored array.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">nrow</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;On iterators, this is the index of the current row.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;On iterators, this is the index of the current row.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">extdim</span> <span class="o">=</span> <span class="o">-</span><span class="mi">1</span>   <span class="c1"># ordinary arrays are not enlargeable</span>
-        <span class="sd">&quot;&quot;&quot;The index of the enlargeable dimension.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The index of the enlargeable dimension.&quot;&quot;&quot;</span>
 
         <span class="c1"># Ordinary arrays have no filters: leaf is created with default ones.</span>
         <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="n">parentnode</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">new</span><span class="p">,</span> <span class="n">Filters</span><span class="p">(),</span> <span class="n">byteorder</span><span class="p">,</span> <span class="n">_log</span><span class="p">,</span>
                          <span class="n">track_times</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_g_create</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Save a new array in file.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Save a new array in file.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_version</span> <span class="o">=</span> <span class="n">obversion</span>
         <span class="k">try</span><span class="p">:</span>
@@ -308,7 +313,7 @@ <h1>Source code for tables.array</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_objectid</span>
 
     <span class="k">def</span> <span class="nf">_g_open</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get the metadata info for an array in file.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get the metadata info for an array in file.&quot;&quot;&quot;</span>
 
         <span class="p">(</span><span class="n">oid</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">atom</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">shape</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_chunkshape</span><span class="p">)</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_open_array</span><span class="p">()</span>
 
@@ -317,7 +322,7 @@ <h1>Source code for tables.array</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">oid</span>
 
 <div class="viewcode-block" id="Array.get_enum"><a class="viewcode-back" href="../../usersguide/libref/homogenous_storage.html#tables.Array.get_enum">[docs]</a>    <span class="k">def</span> <span class="nf">get_enum</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get the enumerated type associated with this array.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get the enumerated type associated with this array.</span>
 
 <span class="sd">        If this array is of an enumerated type, the corresponding Enum instance</span>
 <span class="sd">        (see :ref:`EnumClassDescr`) is returned. If it is not of an enumerated</span>
@@ -332,7 +337,7 @@ <h1>Source code for tables.array</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">atom</span><span class="o">.</span><span class="n">enum</span></div>
 
 <div class="viewcode-block" id="Array.iterrows"><a class="viewcode-back" href="../../usersguide/libref/homogenous_storage.html#tables.Array.iterrows">[docs]</a>    <span class="k">def</span> <span class="nf">iterrows</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">start</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">stop</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">step</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Iterate over the rows of the array.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Iterate over the rows of the array.</span>
 
 <span class="sd">        This method returns an iterator yielding an object of the current</span>
 <span class="sd">        flavor for each selected row in the array.  The returned rows are taken</span>
@@ -367,7 +372,7 @@ <h1>Source code for tables.array</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span></div>
 
 <div class="viewcode-block" id="Array.__iter__"><a class="viewcode-back" href="../../usersguide/libref/homogenous_storage.html#tables.Array.__iter__">[docs]</a>    <span class="k">def</span> <span class="fm">__iter__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Iterate over the rows of the array.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Iterate over the rows of the array.</span>
 
 <span class="sd">        This is equivalent to calling :meth:`Array.iterrows` with default</span>
 <span class="sd">        arguments, i.e. it iterates over *all the rows* in the array.</span>
@@ -395,7 +400,7 @@ <h1>Source code for tables.array</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span></div>
 
     <span class="k">def</span> <span class="nf">_init_loop</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Initialization for the __iter__ iterator.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Initialization for the __iter__ iterator.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_nrowsread</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_start</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_startb</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_start</span>
@@ -404,7 +409,7 @@ <h1>Source code for tables.array</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">nrow</span> <span class="o">=</span> <span class="n">SizeType</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_start</span> <span class="o">-</span> <span class="bp">self</span><span class="o">.</span><span class="n">_step</span><span class="p">)</span>    <span class="c1"># row number</span>
 
 <div class="viewcode-block" id="Array.__next__"><a class="viewcode-back" href="../../usersguide/libref/homogenous_storage.html#tables.Array.__next__">[docs]</a>    <span class="k">def</span> <span class="fm">__next__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get the next element of the array during an iteration.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get the next element of the array during an iteration.</span>
 
 <span class="sd">        The element is returned as an object of the current flavor.</span>
 
@@ -441,7 +446,7 @@ <h1>Source code for tables.array</h1><div class="highlight"><pre>
                 <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">listarr</span>    <span class="c1"># Scalar case</span></div>
 
     <span class="k">def</span> <span class="nf">_interpret_indexing</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">keys</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Internal routine used by __getitem__ and __setitem__&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Internal routine used by __getitem__ and __setitem__&quot;&quot;&quot;</span>
 
         <span class="n">maxlen</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">shape</span><span class="p">)</span>
         <span class="n">shape</span> <span class="o">=</span> <span class="p">(</span><span class="n">maxlen</span><span class="p">,)</span>
@@ -508,7 +513,7 @@ <h1>Source code for tables.array</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">startl</span><span class="p">,</span> <span class="n">stopl</span><span class="p">,</span> <span class="n">stepl</span><span class="p">,</span> <span class="n">shape</span>
 
     <span class="k">def</span> <span class="nf">_fancy_selection</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">args</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Performs a NumPy-style fancy selection in `self`.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Performs a NumPy-style fancy selection in `self`.</span>
 
 <span class="sd">        Implements advanced NumPy-style selection operations in</span>
 <span class="sd">        addition to the standard slice-and-int behavior.</span>
@@ -522,7 +527,7 @@ <h1>Source code for tables.array</h1><div class="highlight"><pre>
         <span class="c1"># Internal functions</span>
 
         <span class="k">def</span> <span class="nf">validate_number</span><span class="p">(</span><span class="n">num</span><span class="p">,</span> <span class="n">length</span><span class="p">):</span>
-            <span class="sd">&quot;&quot;&quot;Validate a list member for the given axis length.&quot;&quot;&quot;</span>
+<span class="w">            </span><span class="sd">&quot;&quot;&quot;Validate a list member for the given axis length.&quot;&quot;&quot;</span>
 
             <span class="k">try</span><span class="p">:</span>
                 <span class="n">num</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">num</span><span class="p">)</span>
@@ -532,7 +537,7 @@ <h1>Source code for tables.array</h1><div class="highlight"><pre>
                 <span class="k">raise</span> <span class="ne">IndexError</span><span class="p">(</span><span class="s2">&quot;Index out of bounds: </span><span class="si">%d</span><span class="s2">&quot;</span> <span class="o">%</span> <span class="n">num</span><span class="p">)</span>
 
         <span class="k">def</span> <span class="nf">expand_ellipsis</span><span class="p">(</span><span class="n">args</span><span class="p">,</span> <span class="n">rank</span><span class="p">):</span>
-            <span class="sd">&quot;&quot;&quot;Expand ellipsis objects and fill in missing axes.&quot;&quot;&quot;</span>
+<span class="w">            </span><span class="sd">&quot;&quot;&quot;Expand ellipsis objects and fill in missing axes.&quot;&quot;&quot;</span>
 
             <span class="n">n_el</span> <span class="o">=</span> <span class="nb">sum</span><span class="p">(</span><span class="mi">1</span> <span class="k">for</span> <span class="n">arg</span> <span class="ow">in</span> <span class="n">args</span> <span class="k">if</span> <span class="n">arg</span> <span class="ow">is</span> <span class="bp">Ellipsis</span><span class="p">)</span>
             <span class="k">if</span> <span class="n">n_el</span> <span class="o">&gt;</span> <span class="mi">1</span><span class="p">:</span>
@@ -554,7 +559,7 @@ <h1>Source code for tables.array</h1><div class="highlight"><pre>
             <span class="k">return</span> <span class="n">final_args</span>
 
         <span class="k">def</span> <span class="nf">translate_slice</span><span class="p">(</span><span class="n">exp</span><span class="p">,</span> <span class="n">length</span><span class="p">):</span>
-            <span class="sd">&quot;&quot;&quot;Given a slice object, return a 3-tuple (start, count, step)</span>
+<span class="w">            </span><span class="sd">&quot;&quot;&quot;Given a slice object, return a 3-tuple (start, count, step)</span>
 
 <span class="sd">            This is for use with the hyperslab selection routines.</span>
 
@@ -683,7 +688,7 @@ <h1>Source code for tables.array</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">selection</span><span class="p">,</span> <span class="n">reorder</span><span class="p">,</span> <span class="n">mshape</span>
 
 <div class="viewcode-block" id="Array.__getitem__"><a class="viewcode-back" href="../../usersguide/libref/homogenous_storage.html#tables.Array.__getitem__">[docs]</a>    <span class="k">def</span> <span class="fm">__getitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get a row, a range of rows or a slice from the array.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get a row, a range of rows or a slice from the array.</span>
 
 <span class="sd">        The set of tokens allowed for the key is the same as that for extended</span>
 <span class="sd">        slicing in Python (including the Ellipsis or ... token).  The result is</span>
@@ -731,7 +736,7 @@ <h1>Source code for tables.array</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">internal_to_flavor</span><span class="p">(</span><span class="n">arr</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">flavor</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="Array.__setitem__"><a class="viewcode-back" href="../../usersguide/libref/homogenous_storage.html#tables.Array.__setitem__">[docs]</a>    <span class="k">def</span> <span class="fm">__setitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Set a row, a range of rows or a slice in the array.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Set a row, a range of rows or a slice in the array.</span>
 
 <span class="sd">        It takes different actions depending on the type of the key parameter:</span>
 <span class="sd">        if it is an integer, the corresponding array row is set to value (the</span>
@@ -793,7 +798,7 @@ <h1>Source code for tables.array</h1><div class="highlight"><pre>
                 <span class="bp">self</span><span class="o">.</span><span class="n">_write_selection</span><span class="p">(</span><span class="n">selection</span><span class="p">,</span> <span class="n">reorder</span><span class="p">,</span> <span class="n">shape</span><span class="p">,</span> <span class="n">nparr</span><span class="p">)</span></div>
 
     <span class="k">def</span> <span class="nf">_check_shape</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">nparr</span><span class="p">,</span> <span class="n">slice_shape</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Test that nparr shape is consistent with underlying object.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Test that nparr shape is consistent with underlying object.</span>
 
 <span class="sd">        If not, try creating a new nparr object, using broadcasting if</span>
 <span class="sd">        necessary.</span>
@@ -812,7 +817,7 @@ <h1>Source code for tables.array</h1><div class="highlight"><pre>
             <span class="k">return</span> <span class="n">nparr</span>
 
     <span class="k">def</span> <span class="nf">_read_slice</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">startl</span><span class="p">,</span> <span class="n">stopl</span><span class="p">,</span> <span class="n">stepl</span><span class="p">,</span> <span class="n">shape</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Read a slice based on `startl`, `stopl` and `stepl`.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Read a slice based on `startl`, `stopl` and `stepl`.&quot;&quot;&quot;</span>
 
         <span class="n">nparr</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">empty</span><span class="p">(</span><span class="n">dtype</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">atom</span><span class="o">.</span><span class="n">dtype</span><span class="p">,</span> <span class="n">shape</span><span class="o">=</span><span class="n">shape</span><span class="p">)</span>
         <span class="c1"># Protection against reading empty arrays</span>
@@ -825,7 +830,7 @@ <h1>Source code for tables.array</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">nparr</span>
 
     <span class="k">def</span> <span class="nf">_read_coords</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">coords</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Read a set of points defined by `coords`.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Read a set of points defined by `coords`.&quot;&quot;&quot;</span>
 
         <span class="n">nparr</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">empty</span><span class="p">(</span><span class="n">dtype</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">atom</span><span class="o">.</span><span class="n">dtype</span><span class="p">,</span> <span class="n">shape</span><span class="o">=</span><span class="nb">len</span><span class="p">(</span><span class="n">coords</span><span class="p">))</span>
         <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">coords</span><span class="p">)</span> <span class="o">&gt;</span> <span class="mi">0</span><span class="p">:</span>
@@ -836,7 +841,7 @@ <h1>Source code for tables.array</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">nparr</span>
 
     <span class="k">def</span> <span class="nf">_read_selection</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">selection</span><span class="p">,</span> <span class="n">reorder</span><span class="p">,</span> <span class="n">shape</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Read a `selection`.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Read a `selection`.</span>
 
 <span class="sd">        Reorder if necessary.</span>
 
@@ -860,21 +865,21 @@ <h1>Source code for tables.array</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">nparr</span>
 
     <span class="k">def</span> <span class="nf">_write_slice</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">startl</span><span class="p">,</span> <span class="n">stopl</span><span class="p">,</span> <span class="n">stepl</span><span class="p">,</span> <span class="n">shape</span><span class="p">,</span> <span class="n">nparr</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Write `nparr` in a slice based on `startl`, `stopl` and `stepl`.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Write `nparr` in a slice based on `startl`, `stopl` and `stepl`.&quot;&quot;&quot;</span>
 
         <span class="n">nparr</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_check_shape</span><span class="p">(</span><span class="n">nparr</span><span class="p">,</span> <span class="nb">tuple</span><span class="p">(</span><span class="n">shape</span><span class="p">))</span>
         <span class="n">countl</span> <span class="o">=</span> <span class="p">((</span><span class="n">stopl</span> <span class="o">-</span> <span class="n">startl</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span> <span class="o">//</span> <span class="n">stepl</span><span class="p">)</span> <span class="o">+</span> <span class="mi">1</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_g_write_slice</span><span class="p">(</span><span class="n">startl</span><span class="p">,</span> <span class="n">stepl</span><span class="p">,</span> <span class="n">countl</span><span class="p">,</span> <span class="n">nparr</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_write_coords</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">coords</span><span class="p">,</span> <span class="n">nparr</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Write `nparr` values in points defined by `coords` coordinates.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Write `nparr` values in points defined by `coords` coordinates.&quot;&quot;&quot;</span>
 
         <span class="k">if</span> <span class="nb">len</span><span class="p">(</span><span class="n">coords</span><span class="p">)</span> <span class="o">&gt;</span> <span class="mi">0</span><span class="p">:</span>
             <span class="n">nparr</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_check_shape</span><span class="p">(</span><span class="n">nparr</span><span class="p">,</span> <span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="n">coords</span><span class="p">),))</span>
             <span class="bp">self</span><span class="o">.</span><span class="n">_g_write_coords</span><span class="p">(</span><span class="n">coords</span><span class="p">,</span> <span class="n">nparr</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_write_selection</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">selection</span><span class="p">,</span> <span class="n">reorder</span><span class="p">,</span> <span class="n">shape</span><span class="p">,</span> <span class="n">nparr</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Write `nparr` in `selection`.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Write `nparr` in `selection`.</span>
 
 <span class="sd">        Reorder if necessary.</span>
 
@@ -892,7 +897,7 @@ <h1>Source code for tables.array</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">_g_write_selection</span><span class="p">(</span><span class="n">selection</span><span class="p">,</span> <span class="n">nparr</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_read</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">start</span><span class="p">,</span> <span class="n">stop</span><span class="p">,</span> <span class="n">step</span><span class="p">,</span> <span class="n">out</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Read the array from disk without slice or flavor processing.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Read the array from disk without slice or flavor processing.&quot;&quot;&quot;</span>
 
         <span class="n">nrowstoread</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="nb">range</span><span class="p">(</span><span class="n">start</span><span class="p">,</span> <span class="n">stop</span><span class="p">,</span> <span class="n">step</span><span class="p">))</span>
         <span class="n">shape</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">shape</span><span class="p">)</span>
@@ -921,7 +926,7 @@ <h1>Source code for tables.array</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">arr</span>
 
 <div class="viewcode-block" id="Array.read"><a class="viewcode-back" href="../../usersguide/libref/homogenous_storage.html#tables.Array.read">[docs]</a>    <span class="k">def</span> <span class="nf">read</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">start</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">stop</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">step</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">out</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get data in the array as an object of the current flavor.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get data in the array as an object of the current flavor.</span>
 
 <span class="sd">        The start, stop and step parameters can be used to select only a</span>
 <span class="sd">        *range of rows* in the array.  Their meanings are the same as in</span>
@@ -960,7 +965,7 @@ <h1>Source code for tables.array</h1><div class="highlight"><pre>
 
     <span class="k">def</span> <span class="nf">_g_copy_with_stats</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">group</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">start</span><span class="p">,</span> <span class="n">stop</span><span class="p">,</span> <span class="n">step</span><span class="p">,</span>
                            <span class="n">title</span><span class="p">,</span> <span class="n">filters</span><span class="p">,</span> <span class="n">chunkshape</span><span class="p">,</span> <span class="n">_log</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Private part of Leaf.copy() for each kind of leaf.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Private part of Leaf.copy() for each kind of leaf.&quot;&quot;&quot;</span>
 
         <span class="c1"># Compute the correct indices.</span>
         <span class="p">(</span><span class="n">start</span><span class="p">,</span> <span class="n">stop</span><span class="p">,</span> <span class="n">step</span><span class="p">)</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_process_range_read</span><span class="p">(</span><span class="n">start</span><span class="p">,</span> <span class="n">stop</span><span class="p">,</span> <span class="n">step</span><span class="p">)</span>
@@ -981,18 +986,18 @@ <h1>Source code for tables.array</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="p">(</span><span class="n">object_</span><span class="p">,</span> <span class="n">nbytes</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="fm">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;This provides more metainfo in addition to standard __str__&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;This provides more metainfo in addition to standard __str__&quot;&quot;&quot;</span>
 
-        <span class="k">return</span> <span class="sa">f</span><span class="s2">&quot;&quot;&quot;</span><span class="si">{</span><span class="bp">self</span><span class="si">}</span><span class="s2"></span>
-<span class="s2">  atom := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">atom</span><span class="si">!r}</span><span class="s2"></span>
-<span class="s2">  maindim := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">maindim</span><span class="si">!r}</span><span class="s2"></span>
-<span class="s2">  flavor := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">flavor</span><span class="si">!r}</span><span class="s2"></span>
-<span class="s2">  byteorder := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">byteorder</span><span class="si">!r}</span><span class="s2"></span>
+        <span class="k">return</span> <span class="sa">f</span><span class="s2">&quot;&quot;&quot;</span><span class="si">{</span><span class="bp">self</span><span class="si">}</span>
+<span class="s2">  atom := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">atom</span><span class="si">!r}</span>
+<span class="s2">  maindim := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">maindim</span><span class="si">!r}</span>
+<span class="s2">  flavor := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">flavor</span><span class="si">!r}</span>
+<span class="s2">  byteorder := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">byteorder</span><span class="si">!r}</span>
 <span class="s2">  chunkshape := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">chunkshape</span><span class="si">!r}</span><span class="s2">&quot;&quot;&quot;</span></div>
 
 
 <span class="k">class</span> <span class="nc">ImageArray</span><span class="p">(</span><span class="n">Array</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Array containing an image.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Array containing an image.</span>
 
 <span class="sd">    This class has no additional behaviour or functionality compared to</span>
 <span class="sd">    that of an ordinary array.  It simply enables the user to open an</span>
diff --git a/_modules/tables/atom.html b/_modules/tables/atom.html
index cc59f4f..51e27d8 100644
--- a/_modules/tables/atom.html
+++ b/_modules/tables/atom.html
@@ -3,7 +3,7 @@
 <head>
   <meta charset="utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>tables.atom &mdash; PyTables 3.8.1.dev0 documentation</title>
+  <title>tables.atom &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/graphviz.css" type="text/css" />
@@ -16,6 +16,7 @@
         <script src="../../_static/underscore.js"></script>
         <script src="../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../_static/doctools.js"></script>
+        <script src="../../_static/sphinx_highlight.js"></script>
     <script src="../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../genindex.html" />
     <link rel="search" title="Search" href="../../search.html" />
@@ -38,15 +39,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../index.html">
-            <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../index.html">
+            
+              <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.8.1.dev0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -78,9 +83,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../index.html">Module code</a> &raquo;</li>
-      <li>tables.atom</li>
+      <li><a href="../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../index.html">Module code</a></li>
+      <li class="breadcrumb-item active">tables.atom</li>
       <li class="wy-breadcrumbs-aside">
       </li>
   </ul>
@@ -127,7 +132,7 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="split_type"><a class="viewcode-back" href="../../usersguide/libref/top_level.html#tables.split_type">[docs]</a><span class="k">def</span> <span class="nf">split_type</span><span class="p">(</span><span class="nb">type</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Split a PyTables type into a PyTables kind and an item size.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Split a PyTables type into a PyTables kind and an item size.</span>
 
 <span class="sd">    Returns a tuple of (kind, itemsize). If no item size is present in the type</span>
 <span class="sd">    (in the form of a precision), the returned item size is None::</span>
@@ -169,7 +174,7 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
 
 
 <span class="k">def</span> <span class="nf">_abstract_atom_init</span><span class="p">(</span><span class="n">deftype</span><span class="p">,</span> <span class="n">defvalue</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Return a constructor for an abstract `Atom` class.&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Return a constructor for an abstract `Atom` class.&quot;&quot;&quot;</span>
 
     <span class="n">defitemsize</span> <span class="o">=</span> <span class="n">split_type</span><span class="p">(</span><span class="n">deftype</span><span class="p">)[</span><span class="mi">1</span><span class="p">]</span>
 
@@ -186,7 +191,7 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
 
 
 <span class="k">def</span> <span class="nf">_normalize_shape</span><span class="p">(</span><span class="n">shape</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Check that the `shape` is safe to be used and return it as a tuple.&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Check that the `shape` is safe to be used and return it as a tuple.&quot;&quot;&quot;</span>
 
     <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">shape</span><span class="p">,</span> <span class="p">(</span><span class="n">np</span><span class="o">.</span><span class="n">integer</span><span class="p">,</span> <span class="nb">int</span><span class="p">)):</span>
         <span class="k">if</span> <span class="n">shape</span> <span class="o">&lt;</span> <span class="mi">1</span><span class="p">:</span>
@@ -209,7 +214,7 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
 
 
 <span class="k">def</span> <span class="nf">_normalize_default</span><span class="p">(</span><span class="n">value</span><span class="p">,</span> <span class="n">dtype</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Return `value` as a valid default of NumPy type `dtype`.&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Return `value` as a valid default of NumPy type `dtype`.&quot;&quot;&quot;</span>
 
     <span class="c1"># Create NumPy objects as defaults</span>
     <span class="c1"># This is better in order to serialize them as attributes</span>
@@ -232,7 +237,7 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
 
 
 <span class="k">def</span> <span class="nf">_cmp_dispatcher</span><span class="p">(</span><span class="n">other_method_name</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Dispatch comparisons to a method of the *other* object.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Dispatch comparisons to a method of the *other* object.</span>
 
 <span class="sd">    Returns a new *rich comparison* method which dispatches calls to</span>
 <span class="sd">    the method `other_method_name` of the *other* object.  If there is</span>
@@ -251,7 +256,7 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
 
 
 <span class="k">class</span> <span class="nc">MetaAtom</span><span class="p">(</span><span class="nb">type</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Atom metaclass.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Atom metaclass.</span>
 
 <span class="sd">    This metaclass ensures that data about atom classes gets inserted</span>
 <span class="sd">    into the suitable registries.</span>
@@ -287,7 +292,7 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="Atom"><a class="viewcode-back" href="../../usersguide/libref/declarative_classes.html#tables.Atom">[docs]</a><span class="k">class</span> <span class="nc">Atom</span><span class="p">(</span><span class="n">metaclass</span><span class="o">=</span><span class="n">MetaAtom</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Defines the type of atomic cells stored in a dataset.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Defines the type of atomic cells stored in a dataset.</span>
 
 <span class="sd">    The meaning of *atomic* is that individual elements of a cell can</span>
 <span class="sd">    not be extracted directly by indexing (i.e.  __getitem__()) the</span>
@@ -383,13 +388,13 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
 
     <span class="nd">@classmethod</span>
     <span class="k">def</span> <span class="nf">prefix</span><span class="p">(</span><span class="bp">cls</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Return the atom class prefix.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Return the atom class prefix.&quot;&quot;&quot;</span>
         <span class="n">cname</span> <span class="o">=</span> <span class="bp">cls</span><span class="o">.</span><span class="vm">__name__</span>
         <span class="k">return</span> <span class="n">cname</span><span class="p">[:</span><span class="n">cname</span><span class="o">.</span><span class="n">rfind</span><span class="p">(</span><span class="s1">&#39;Atom&#39;</span><span class="p">)]</span>
 
 <div class="viewcode-block" id="Atom.from_sctype"><a class="viewcode-back" href="../../usersguide/libref/declarative_classes.html#tables.Atom.from_sctype">[docs]</a>    <span class="nd">@classmethod</span>
     <span class="k">def</span> <span class="nf">from_sctype</span><span class="p">(</span><span class="bp">cls</span><span class="p">,</span> <span class="n">sctype</span><span class="p">,</span> <span class="n">shape</span><span class="o">=</span><span class="p">(),</span> <span class="n">dflt</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create an Atom from a NumPy scalar type sctype.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create an Atom from a NumPy scalar type sctype.</span>
 
 <span class="sd">        Optional shape and default value may be specified as the</span>
 <span class="sd">        shape and dflt</span>
@@ -416,7 +421,7 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
 
 <div class="viewcode-block" id="Atom.from_dtype"><a class="viewcode-back" href="../../usersguide/libref/declarative_classes.html#tables.Atom.from_dtype">[docs]</a>    <span class="nd">@classmethod</span>
     <span class="k">def</span> <span class="nf">from_dtype</span><span class="p">(</span><span class="bp">cls</span><span class="p">,</span> <span class="n">dtype</span><span class="p">,</span> <span class="n">dflt</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create an Atom from a NumPy dtype.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create an Atom from a NumPy dtype.</span>
 
 <span class="sd">        An optional default value may be specified as the dflt</span>
 <span class="sd">        argument. Information in the dtype not represented in an Atom is</span>
@@ -463,7 +468,7 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
 
 <div class="viewcode-block" id="Atom.from_type"><a class="viewcode-back" href="../../usersguide/libref/declarative_classes.html#tables.Atom.from_type">[docs]</a>    <span class="nd">@classmethod</span>
     <span class="k">def</span> <span class="nf">from_type</span><span class="p">(</span><span class="bp">cls</span><span class="p">,</span> <span class="nb">type</span><span class="p">,</span> <span class="n">shape</span><span class="o">=</span><span class="p">(),</span> <span class="n">dflt</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create an Atom from a PyTables type.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create an Atom from a PyTables type.</span>
 
 <span class="sd">        Optional shape and default value may be specified as the</span>
 <span class="sd">        shape and dflt arguments, respectively::</span>
@@ -490,7 +495,7 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
 
 <div class="viewcode-block" id="Atom.from_kind"><a class="viewcode-back" href="../../usersguide/libref/declarative_classes.html#tables.Atom.from_kind">[docs]</a>    <span class="nd">@classmethod</span>
     <span class="k">def</span> <span class="nf">from_kind</span><span class="p">(</span><span class="bp">cls</span><span class="p">,</span> <span class="n">kind</span><span class="p">,</span> <span class="n">itemsize</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">shape</span><span class="o">=</span><span class="p">(),</span> <span class="n">dflt</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create an Atom from a PyTables kind.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create an Atom from a PyTables kind.</span>
 
 <span class="sd">        Optional item size, shape and default value may be</span>
 <span class="sd">        specified as the itemsize, shape and dflt</span>
@@ -558,17 +563,17 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">size</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Total size in bytes of the atom.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Total size in bytes of the atom.&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">dtype</span><span class="o">.</span><span class="n">itemsize</span>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">recarrtype</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;String type to be used in numpy.rec.array().&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;String type to be used in numpy.rec.array().&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="nb">str</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">dtype</span><span class="o">.</span><span class="n">shape</span><span class="p">)</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">dtype</span><span class="o">.</span><span class="n">base</span><span class="o">.</span><span class="n">str</span><span class="p">[</span><span class="mi">1</span><span class="p">:]</span>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">ndim</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The number of dimensions of the atom.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The number of dimensions of the atom.</span>
 
 <span class="sd">        .. versionadded:: 2.4&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">shape</span><span class="p">)</span>
@@ -579,14 +584,14 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
                                       <span class="s2">&quot;please use one of its subclasses&quot;</span>
                                       <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="vm">__class__</span><span class="o">.</span><span class="vm">__name__</span><span class="p">)</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">shape</span> <span class="o">=</span> <span class="n">shape</span> <span class="o">=</span> <span class="n">_normalize_shape</span><span class="p">(</span><span class="n">shape</span><span class="p">)</span>
-        <span class="sd">&quot;&quot;&quot;The shape of the atom (a tuple for scalar atoms).&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The shape of the atom (a tuple for scalar atoms).&quot;&quot;&quot;</span>
         <span class="c1"># Curiously enough, NumPy isn&#39;t generally able to accept NumPy</span>
         <span class="c1"># integers in a shape. ;(</span>
         <span class="n">npshape</span> <span class="o">=</span> <span class="nb">tuple</span><span class="p">(</span><span class="nb">int</span><span class="p">(</span><span class="n">s</span><span class="p">)</span> <span class="k">for</span> <span class="n">s</span> <span class="ow">in</span> <span class="n">shape</span><span class="p">)</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">dtype</span> <span class="o">=</span> <span class="n">dtype</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">dtype</span><span class="p">((</span><span class="n">nptype</span><span class="p">,</span> <span class="n">npshape</span><span class="p">))</span>
-        <span class="sd">&quot;&quot;&quot;The NumPy dtype that most closely matches this atom.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The NumPy dtype that most closely matches this atom.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">dflt</span> <span class="o">=</span> <span class="n">_normalize_default</span><span class="p">(</span><span class="n">dflt</span><span class="p">,</span> <span class="n">dtype</span><span class="p">)</span>
-        <span class="sd">&quot;&quot;&quot;The default value of the atom.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The default value of the atom.</span>
 
 <span class="sd">        If the user does not supply a value for an element while</span>
 <span class="sd">        filling a dataset, this default value will be written to</span>
@@ -615,7 +620,7 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
     <span class="c1">#                 self.dflt))</span>
 
 <div class="viewcode-block" id="Atom.copy"><a class="viewcode-back" href="../../usersguide/libref/declarative_classes.html#tables.Atom.copy">[docs]</a>    <span class="k">def</span> <span class="nf">copy</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">**</span><span class="n">override</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get a copy of the atom, possibly overriding some arguments.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get a copy of the atom, possibly overriding some arguments.</span>
 
 <span class="sd">        Constructor arguments to be overridden must be passed as</span>
 <span class="sd">        keyword arguments::</span>
@@ -642,7 +647,7 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="vm">__class__</span><span class="p">(</span><span class="o">**</span><span class="n">newargs</span><span class="p">)</span></div>
 
     <span class="k">def</span> <span class="nf">_get_init_args</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get a dictionary of instance constructor arguments.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get a dictionary of instance constructor arguments.</span>
 
 <span class="sd">        This implementation works on classes which use the same names</span>
 <span class="sd">        for both constructor arguments and instance attributes.</span>
@@ -656,7 +661,7 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="p">{</span><span class="n">arg</span><span class="p">:</span> <span class="nb">getattr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">arg</span><span class="p">)</span> <span class="k">for</span> <span class="n">arg</span> <span class="ow">in</span> <span class="n">args</span> <span class="k">if</span> <span class="n">arg</span> <span class="o">!=</span> <span class="s1">&#39;self&#39;</span><span class="p">}</span>
 
     <span class="k">def</span> <span class="nf">_is_equal_to_atom</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">atom</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Is this object equal to the given `atom`?&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Is this object equal to the given `atom`?&quot;&quot;&quot;</span>
 
         <span class="k">return</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">type</span> <span class="o">==</span> <span class="n">atom</span><span class="o">.</span><span class="n">type</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">shape</span> <span class="o">==</span> <span class="n">atom</span><span class="o">.</span><span class="n">shape</span>
                 <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">itemsize</span> <span class="o">==</span> <span class="n">atom</span><span class="o">.</span><span class="n">itemsize</span>
@@ -664,7 +669,7 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="StringAtom"><a class="viewcode-back" href="../../usersguide/libref/declarative_classes.html#tables.StringAtom">[docs]</a><span class="k">class</span> <span class="nc">StringAtom</span><span class="p">(</span><span class="n">Atom</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Defines an atom of type string.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Defines an atom of type string.</span>
 
 <span class="sd">    The item size is the *maximum* length in characters of strings.</span>
 
@@ -676,7 +681,7 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">itemsize</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Size in bytes of a sigle item in the atom.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Size in bytes of a sigle item in the atom.&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">dtype</span><span class="o">.</span><span class="n">base</span><span class="o">.</span><span class="n">itemsize</span>
 
     <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">itemsize</span><span class="p">,</span> <span class="n">shape</span><span class="o">=</span><span class="p">(),</span> <span class="n">dflt</span><span class="o">=</span><span class="n">_defvalue</span><span class="p">):</span>
@@ -688,7 +693,7 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="BoolAtom"><a class="viewcode-back" href="../../usersguide/libref/declarative_classes.html#tables.BoolAtom">[docs]</a><span class="k">class</span> <span class="nc">BoolAtom</span><span class="p">(</span><span class="n">Atom</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Defines an atom of type bool.&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Defines an atom of type bool.&quot;&quot;&quot;</span>
 
     <span class="n">kind</span> <span class="o">=</span> <span class="s1">&#39;bool&#39;</span>
     <span class="n">itemsize</span> <span class="o">=</span> <span class="mi">1</span>
@@ -701,7 +706,7 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="IntAtom"><a class="viewcode-back" href="../../usersguide/libref/declarative_classes.html#tables.IntAtom">[docs]</a><span class="k">class</span> <span class="nc">IntAtom</span><span class="p">(</span><span class="n">Atom</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Defines an atom of a signed integral type (int kind).&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Defines an atom of a signed integral type (int kind).&quot;&quot;&quot;</span>
 
     <span class="n">kind</span> <span class="o">=</span> <span class="s1">&#39;int&#39;</span>
     <span class="n">signed</span> <span class="o">=</span> <span class="kc">True</span>
@@ -711,7 +716,7 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="UIntAtom"><a class="viewcode-back" href="../../usersguide/libref/declarative_classes.html#tables.UIntAtom">[docs]</a><span class="k">class</span> <span class="nc">UIntAtom</span><span class="p">(</span><span class="n">Atom</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Defines an atom of an unsigned integral type (uint kind).&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Defines an atom of an unsigned integral type (uint kind).&quot;&quot;&quot;</span>
 
     <span class="n">kind</span> <span class="o">=</span> <span class="s1">&#39;uint&#39;</span>
     <span class="n">signed</span> <span class="o">=</span> <span class="kc">False</span>
@@ -721,7 +726,7 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="FloatAtom"><a class="viewcode-back" href="../../usersguide/libref/declarative_classes.html#tables.FloatAtom">[docs]</a><span class="k">class</span> <span class="nc">FloatAtom</span><span class="p">(</span><span class="n">Atom</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Defines an atom of a floating point type (float kind).&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Defines an atom of a floating point type (float kind).&quot;&quot;&quot;</span>
 
     <span class="n">kind</span> <span class="o">=</span> <span class="s1">&#39;float&#39;</span>
     <span class="n">_deftype</span> <span class="o">=</span> <span class="s1">&#39;float64&#39;</span>
@@ -730,7 +735,7 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
 
 
 <span class="k">def</span> <span class="nf">_create_numeric_class</span><span class="p">(</span><span class="n">baseclass</span><span class="p">,</span> <span class="n">itemsize</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Create a numeric atom class with the given `baseclass` and an</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Create a numeric atom class with the given `baseclass` and an</span>
 <span class="sd">    `itemsize`.&quot;&quot;&quot;</span>
 
     <span class="n">prefix</span> <span class="o">=</span> <span class="s1">&#39;</span><span class="si">%s%d</span><span class="s1">&#39;</span> <span class="o">%</span> <span class="p">(</span><span class="n">baseclass</span><span class="o">.</span><span class="n">prefix</span><span class="p">(),</span> <span class="n">itemsize</span> <span class="o">*</span> <span class="mi">8</span><span class="p">)</span>
@@ -764,7 +769,7 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="ComplexAtom"><a class="viewcode-back" href="../../usersguide/libref/declarative_classes.html#tables.ComplexAtom">[docs]</a><span class="k">class</span> <span class="nc">ComplexAtom</span><span class="p">(</span><span class="n">Atom</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Defines an atom of kind complex.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Defines an atom of kind complex.</span>
 
 <span class="sd">    Allowed item sizes are 8 (single precision) and 16 (double precision). This</span>
 <span class="sd">    class must be used instead of more concrete ones to avoid confusions with</span>
@@ -785,7 +790,7 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">itemsize</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Size in bytes of a sigle item in the atom.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Size in bytes of a sigle item in the atom.&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">dtype</span><span class="o">.</span><span class="n">base</span><span class="o">.</span><span class="n">itemsize</span>
 
     <span class="c1"># Only instances have a `type` attribute, so complex types must be</span>
@@ -807,7 +812,7 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
 
 
 <span class="k">class</span> <span class="nc">_ComplexErrorAtom</span><span class="p">(</span><span class="n">ComplexAtom</span><span class="p">,</span> <span class="n">metaclass</span><span class="o">=</span><span class="nb">type</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Reminds the user to stop using the old complex atom names.&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Reminds the user to stop using the old complex atom names.&quot;&quot;&quot;</span>
 
     <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">shape</span><span class="o">=</span><span class="p">(),</span> <span class="n">dflt</span><span class="o">=</span><span class="n">ComplexAtom</span><span class="o">.</span><span class="n">_defvalue</span><span class="p">):</span>
         <span class="k">raise</span> <span class="ne">TypeError</span><span class="p">(</span>
@@ -825,7 +830,7 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
 
 
 <span class="k">class</span> <span class="nc">TimeAtom</span><span class="p">(</span><span class="n">Atom</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Defines an atom of time type (time kind).</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Defines an atom of time type (time kind).</span>
 
 <span class="sd">    There are two distinct supported types of time: a 32 bit integer value and</span>
 <span class="sd">    a 64 bit floating point value. Both of them reflect the number of seconds</span>
@@ -841,7 +846,7 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="Time32Atom"><a class="viewcode-back" href="../../usersguide/libref/declarative_classes.html#tables.Time32Atom">[docs]</a><span class="k">class</span> <span class="nc">Time32Atom</span><span class="p">(</span><span class="n">TimeAtom</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Defines an atom of type time32.&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Defines an atom of type time32.&quot;&quot;&quot;</span>
 
     <span class="n">itemsize</span> <span class="o">=</span> <span class="mi">4</span>
     <span class="nb">type</span> <span class="o">=</span> <span class="s1">&#39;time32&#39;</span>
@@ -852,7 +857,7 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="Time64Atom"><a class="viewcode-back" href="../../usersguide/libref/declarative_classes.html#tables.Time64Atom">[docs]</a><span class="k">class</span> <span class="nc">Time64Atom</span><span class="p">(</span><span class="n">TimeAtom</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Defines an atom of type time64.&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Defines an atom of type time64.&quot;&quot;&quot;</span>
 
     <span class="n">itemsize</span> <span class="o">=</span> <span class="mi">8</span>
     <span class="nb">type</span> <span class="o">=</span> <span class="s1">&#39;time64&#39;</span>
@@ -863,7 +868,7 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="EnumAtom"><a class="viewcode-back" href="../../usersguide/libref/declarative_classes.html#tables.EnumAtom">[docs]</a><span class="k">class</span> <span class="nc">EnumAtom</span><span class="p">(</span><span class="n">Atom</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Description of an atom of an enumerated type.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Description of an atom of an enumerated type.</span>
 
 <span class="sd">    Instances of this class describe the atom type used to store enumerated</span>
 <span class="sd">    values. Those values belong to an enumerated type, defined by the first</span>
@@ -959,11 +964,11 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">itemsize</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Size in bytes of a single item in the atom.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Size in bytes of a single item in the atom.&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">dtype</span><span class="o">.</span><span class="n">base</span><span class="o">.</span><span class="n">itemsize</span>
 
     <span class="k">def</span> <span class="nf">_checkbase</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">base</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Check the `base` storage atom.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Check the `base` storage atom.&quot;&quot;&quot;</span>
 
         <span class="k">if</span> <span class="n">base</span><span class="o">.</span><span class="n">kind</span> <span class="o">==</span> <span class="s1">&#39;enum&#39;</span><span class="p">:</span>
             <span class="k">raise</span> <span class="ne">TypeError</span><span class="p">(</span><span class="s2">&quot;can not use an enumerated atom &quot;</span>
@@ -998,18 +1003,18 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
                                       <span class="s2">&quot;are supported for the moment, sorry&quot;</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_get_init_args</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get a dictionary of instance constructor arguments.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get a dictionary of instance constructor arguments.&quot;&quot;&quot;</span>
 
         <span class="k">return</span> <span class="nb">dict</span><span class="p">(</span><span class="n">enum</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">enum</span><span class="p">,</span> <span class="n">dflt</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_defname</span><span class="p">,</span>
                     <span class="n">base</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">base</span><span class="p">,</span> <span class="n">shape</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">shape</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_is_equal_to_atom</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">atom</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Is this object equal to the given `atom`?&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Is this object equal to the given `atom`?&quot;&quot;&quot;</span>
 
         <span class="k">return</span> <span class="kc">False</span>
 
     <span class="k">def</span> <span class="nf">_is_equal_to_enumatom</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">enumatom</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Is this object equal to the given `enumatom`?&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Is this object equal to the given `enumatom`?&quot;&quot;&quot;</span>
 
         <span class="k">return</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">enum</span> <span class="o">==</span> <span class="n">enumatom</span><span class="o">.</span><span class="n">enum</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">shape</span> <span class="o">==</span> <span class="n">enumatom</span><span class="o">.</span><span class="n">shape</span>
                 <span class="ow">and</span> <span class="n">np</span><span class="o">.</span><span class="n">all</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">dflt</span> <span class="o">==</span> <span class="n">enumatom</span><span class="o">.</span><span class="n">dflt</span><span class="p">)</span>
@@ -1055,7 +1060,7 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
 
 
 <span class="k">class</span> <span class="nc">ReferenceAtom</span><span class="p">(</span><span class="n">Atom</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Defines an atom of type object to read references.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Defines an atom of type object to read references.</span>
 <span class="sd">    This atom is read-only.</span>
 <span class="sd">    &quot;&quot;&quot;</span>
 
@@ -1066,7 +1071,7 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">itemsize</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Size in bytes of a single item in the atom.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Size in bytes of a single item in the atom.&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">dtype</span><span class="o">.</span><span class="n">base</span><span class="o">.</span><span class="n">itemsize</span>
 
     <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">shape</span><span class="o">=</span><span class="p">()):</span>
@@ -1095,7 +1100,7 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
 
 
 <span class="k">class</span> <span class="nc">PseudoAtom</span><span class="p">:</span>
-    <span class="sd">&quot;&quot;&quot;Pseudo-atoms can only be used in ``VLArray`` nodes.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Pseudo-atoms can only be used in ``VLArray`` nodes.</span>
 
 <span class="sd">    They can be recognised because they also have `kind`, `type` and</span>
 <span class="sd">    `shape` attributes, but no `size`, `itemsize` or `dflt` ones.</span>
@@ -1107,18 +1112,18 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="s1">&#39;</span><span class="si">%s</span><span class="s1">()&#39;</span> <span class="o">%</span> <span class="bp">self</span><span class="o">.</span><span class="vm">__class__</span><span class="o">.</span><span class="vm">__name__</span>
 
     <span class="k">def</span> <span class="nf">toarray</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">object_</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Convert an `object_` into an array of base atoms.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Convert an `object_` into an array of base atoms.&quot;&quot;&quot;</span>
 
         <span class="k">raise</span> <span class="ne">NotImplementedError</span>
 
     <span class="k">def</span> <span class="nf">fromarray</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">array</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Convert an `array` of base atoms into an object.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Convert an `array` of base atoms into an object.&quot;&quot;&quot;</span>
 
         <span class="k">raise</span> <span class="ne">NotImplementedError</span>
 
 
 <span class="k">class</span> <span class="nc">_BufferedAtom</span><span class="p">(</span><span class="n">PseudoAtom</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Pseudo-atom which stores data as a buffer (flat array of uints).&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Pseudo-atom which stores data as a buffer (flat array of uints).&quot;&quot;&quot;</span>
 
     <span class="n">shape</span> <span class="o">=</span> <span class="p">()</span>
 
@@ -1129,13 +1134,13 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">array</span>
 
     <span class="k">def</span> <span class="nf">_tobuffer</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">object_</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Convert an `object_` into a buffer.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Convert an `object_` into a buffer.&quot;&quot;&quot;</span>
 
         <span class="k">raise</span> <span class="ne">NotImplementedError</span>
 
 
 <div class="viewcode-block" id="VLStringAtom"><a class="viewcode-back" href="../../usersguide/libref/declarative_classes.html#tables.VLStringAtom">[docs]</a><span class="k">class</span> <span class="nc">VLStringAtom</span><span class="p">(</span><span class="n">_BufferedAtom</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Defines an atom of type ``vlstring``.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Defines an atom of type ``vlstring``.</span>
 
 <span class="sd">    This class describes a *row* of the VLArray class, rather than an atom. It</span>
 <span class="sd">    differs from the StringAtom class in that you can only add *one instance of</span>
@@ -1177,7 +1182,7 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="VLUnicodeAtom"><a class="viewcode-back" href="../../usersguide/libref/declarative_classes.html#tables.VLUnicodeAtom">[docs]</a><span class="k">class</span> <span class="nc">VLUnicodeAtom</span><span class="p">(</span><span class="n">_BufferedAtom</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Defines an atom of type vlunicode.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Defines an atom of type vlunicode.</span>
 
 <span class="sd">    This class describes a *row* of the VLArray class, rather than an atom.  It</span>
 <span class="sd">    is very similar to VLStringAtom (see :ref:`VLStringAtom`), but it stores</span>
@@ -1236,7 +1241,7 @@ <h1>Source code for tables.atom</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="ObjectAtom"><a class="viewcode-back" href="../../usersguide/libref/declarative_classes.html#tables.ObjectAtom">[docs]</a><span class="k">class</span> <span class="nc">ObjectAtom</span><span class="p">(</span><span class="n">_BufferedAtom</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Defines an atom of type object.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Defines an atom of type object.</span>
 
 <span class="sd">    This class is meant to fit *any* kind of Python object in a row of a</span>
 <span class="sd">    VLArray dataset by using pickle behind the scenes. Due to the fact that</span>
diff --git a/_modules/tables/attributeset.html b/_modules/tables/attributeset.html
index 9a0e59e..698bf97 100644
--- a/_modules/tables/attributeset.html
+++ b/_modules/tables/attributeset.html
@@ -3,7 +3,7 @@
 <head>
   <meta charset="utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>tables.attributeset &mdash; PyTables 3.8.1.dev0 documentation</title>
+  <title>tables.attributeset &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/graphviz.css" type="text/css" />
@@ -16,6 +16,7 @@
         <script src="../../_static/underscore.js"></script>
         <script src="../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../_static/doctools.js"></script>
+        <script src="../../_static/sphinx_highlight.js"></script>
     <script src="../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../genindex.html" />
     <link rel="search" title="Search" href="../../search.html" />
@@ -38,15 +39,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../index.html">
-            <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../index.html">
+            
+              <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.8.1.dev0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -78,9 +83,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../index.html">Module code</a> &raquo;</li>
-      <li>tables.attributeset</li>
+      <li><a href="../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../index.html">Module code</a></li>
+      <li class="breadcrumb-item active">tables.attributeset</li>
       <li class="wy-breadcrumbs-aside">
       </li>
   </ul>
@@ -137,14 +142,14 @@ <h1>Source code for tables.attributeset</h1><div class="highlight"><pre>
 
 
 <span class="k">def</span> <span class="nf">issysattrname</span><span class="p">(</span><span class="n">name</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Check if a name is a system attribute or not&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Check if a name is a system attribute or not&quot;&quot;&quot;</span>
 
     <span class="k">return</span> <span class="nb">bool</span><span class="p">(</span><span class="n">name</span> <span class="ow">in</span> <span class="n">SYS_ATTRS</span> <span class="ow">or</span> <span class="n">np</span><span class="o">.</span><span class="n">prod</span><span class="p">(</span>
         <span class="p">[</span><span class="n">name</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="n">prefix</span><span class="p">)</span> <span class="k">for</span> <span class="n">prefix</span> <span class="ow">in</span> <span class="n">SYS_ATTRS_PREFIXES</span><span class="p">]))</span>
 
 
 <div class="viewcode-block" id="AttributeSet"><a class="viewcode-back" href="../../usersguide/libref/declarative_classes.html#tables.attributeset.AttributeSet">[docs]</a><span class="k">class</span> <span class="nc">AttributeSet</span><span class="p">(</span><span class="n">hdf5extension</span><span class="o">.</span><span class="n">AttributeSet</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Container for the HDF5 attributes of a Node.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Container for the HDF5 attributes of a Node.</span>
 
 <span class="sd">    This class provides methods to create new HDF5 node attributes,</span>
 <span class="sd">    and to get, rename or delete existing ones.</span>
@@ -274,11 +279,11 @@ <h1>Source code for tables.attributeset</h1><div class="highlight"><pre>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">_v_node</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The :class:`Node` instance this attribute set is associated with.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The :class:`Node` instance this attribute set is associated with.&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_g_getnode</span><span class="p">()</span>
 
     <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">node</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create the basic structures to keep the attribute information.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create the basic structures to keep the attribute information.</span>
 
 <span class="sd">        Reads all the HDF5 attributes (if any) on disk for the node &quot;node&quot;.</span>
 
@@ -332,7 +337,7 @@ <h1>Source code for tables.attributeset</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_attrnamesuser</span><span class="o">.</span><span class="n">sort</span><span class="p">()</span>
 
     <span class="k">def</span> <span class="nf">_g_update_node_location</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">node</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Updates the location information about the associated `node`.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Updates the location information about the associated `node`.&quot;&quot;&quot;</span>
 
         <span class="n">dict_</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="vm">__dict__</span>
         <span class="n">dict_</span><span class="p">[</span><span class="s1">&#39;_v__nodefile&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">node</span><span class="o">.</span><span class="n">_v_file</span>
@@ -341,7 +346,7 @@ <h1>Source code for tables.attributeset</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">_g_new</span><span class="p">(</span><span class="n">node</span><span class="p">)</span>
 
 <div class="viewcode-block" id="AttributeSet._f_list"><a class="viewcode-back" href="../../usersguide/libref/declarative_classes.html#tables.attributeset.AttributeSet._f_list">[docs]</a>    <span class="k">def</span> <span class="nf">_f_list</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">attrset</span><span class="o">=</span><span class="s1">&#39;user&#39;</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get a list of attribute names.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get a list of attribute names.</span>
 
 <span class="sd">        The attrset string selects the attribute set to be used.  A</span>
 <span class="sd">        &#39;user&#39; value returns only user attributes (this is the default).</span>
@@ -358,7 +363,7 @@ <h1>Source code for tables.attributeset</h1><div class="highlight"><pre>
             <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_attrnames</span><span class="p">[:]</span></div>
 
     <span class="k">def</span> <span class="fm">__dir__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Autocomplete only children named as valid python identifiers.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Autocomplete only children named as valid python identifiers.</span>
 
 <span class="sd">        Only PY3 supports this special method.</span>
 <span class="sd">        &quot;&quot;&quot;</span>
@@ -367,7 +372,7 @@ <h1>Source code for tables.attributeset</h1><div class="highlight"><pre>
                     <span class="k">if</span> <span class="n">c</span><span class="o">.</span><span class="n">isidentifier</span><span class="p">()})</span>
 
     <span class="k">def</span> <span class="fm">__getattr__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get the attribute named &quot;name&quot;.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get the attribute named &quot;name&quot;.&quot;&quot;&quot;</span>
 
         <span class="c1"># If attribute does not exist, raise AttributeError</span>
         <span class="k">if</span> <span class="n">name</span> <span class="ow">not</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_attrnames</span><span class="p">:</span>
@@ -469,7 +474,7 @@ <h1>Source code for tables.attributeset</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">retval</span>
 
     <span class="k">def</span> <span class="nf">_g__setattr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Set a PyTables attribute.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Set a PyTables attribute.</span>
 
 <span class="sd">        Sets a (maybe new) PyTables attribute with the specified `name`</span>
 <span class="sd">        and `value`.  If the attribute already exists, it is simply</span>
@@ -528,7 +533,7 @@ <h1>Source code for tables.attributeset</h1><div class="highlight"><pre>
                 <span class="n">attrnamesuser</span><span class="o">.</span><span class="n">sort</span><span class="p">()</span>
 
     <span class="k">def</span> <span class="fm">__setattr__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Set a PyTables attribute.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Set a PyTables attribute.</span>
 
 <span class="sd">        Sets a (maybe new) PyTables attribute with the specified `name`</span>
 <span class="sd">        and `value`.  If the attribute already exists, it is simply</span>
@@ -582,7 +587,7 @@ <h1>Source code for tables.attributeset</h1><div class="highlight"><pre>
         <span class="n">attr_to_shadow</span><span class="p">(</span><span class="n">nodefile</span><span class="p">,</span> <span class="n">node_pathname</span><span class="p">,</span> <span class="n">name</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_g__delattr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Delete a PyTables attribute.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Delete a PyTables attribute.</span>
 
 <span class="sd">        Deletes the specified existing PyTables attribute.</span>
 
@@ -605,7 +610,7 @@ <h1>Source code for tables.attributeset</h1><div class="highlight"><pre>
         <span class="k">del</span> <span class="bp">self</span><span class="o">.</span><span class="vm">__dict__</span><span class="p">[</span><span class="n">name</span><span class="p">]</span>
 
     <span class="k">def</span> <span class="fm">__delattr__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Delete a PyTables attribute.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Delete a PyTables attribute.</span>
 
 <span class="sd">        Deletes the specified existing PyTables attribute from the</span>
 <span class="sd">        attribute set.  If a nonexistent or system attribute is</span>
@@ -630,7 +635,7 @@ <h1>Source code for tables.attributeset</h1><div class="highlight"><pre>
             <span class="bp">self</span><span class="o">.</span><span class="n">_g__delattr</span><span class="p">(</span><span class="n">name</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="fm">__getitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The dictionary like interface for __getattr__().&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The dictionary like interface for __getattr__().&quot;&quot;&quot;</span>
 
         <span class="k">try</span><span class="p">:</span>
             <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="fm">__getattr__</span><span class="p">(</span><span class="n">name</span><span class="p">)</span>
@@ -641,12 +646,12 @@ <h1>Source code for tables.attributeset</h1><div class="highlight"><pre>
                 <span class="o">%</span> <span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v__nodepath</span><span class="p">))</span>
 
     <span class="k">def</span> <span class="fm">__setitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The dictionary like interface for __setattr__().&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The dictionary like interface for __setattr__().&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="fm">__setattr__</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="n">value</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="fm">__delitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The dictionary like interface for __delattr__().&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The dictionary like interface for __delattr__().&quot;&quot;&quot;</span>
 
         <span class="k">try</span><span class="p">:</span>
             <span class="bp">self</span><span class="o">.</span><span class="fm">__delattr__</span><span class="p">(</span><span class="n">name</span><span class="p">)</span>
@@ -657,7 +662,7 @@ <h1>Source code for tables.attributeset</h1><div class="highlight"><pre>
                 <span class="o">%</span> <span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v__nodepath</span><span class="p">))</span>
 
 <div class="viewcode-block" id="AttributeSet.__contains__"><a class="viewcode-back" href="../../usersguide/libref/declarative_classes.html#tables.attributeset.AttributeSet.__contains__">[docs]</a>    <span class="k">def</span> <span class="fm">__contains__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Is there an attribute with that name?</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Is there an attribute with that name?</span>
 
 <span class="sd">        A true value is returned if the attribute set has an attribute</span>
 <span class="sd">        with the given name, false otherwise.</span>
@@ -667,7 +672,7 @@ <h1>Source code for tables.attributeset</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">name</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_attrnames</span></div>
 
 <div class="viewcode-block" id="AttributeSet._f_rename"><a class="viewcode-back" href="../../usersguide/libref/declarative_classes.html#tables.attributeset.AttributeSet._f_rename">[docs]</a>    <span class="k">def</span> <span class="nf">_f_rename</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">oldattrname</span><span class="p">,</span> <span class="n">newattrname</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Rename an attribute from oldattrname to newattrname.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Rename an attribute from oldattrname to newattrname.&quot;&quot;&quot;</span>
 
         <span class="k">if</span> <span class="n">oldattrname</span> <span class="o">==</span> <span class="n">newattrname</span><span class="p">:</span>
             <span class="c1"># Do nothing</span>
@@ -683,7 +688,7 @@ <h1>Source code for tables.attributeset</h1><div class="highlight"><pre>
         <span class="nb">delattr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">oldattrname</span><span class="p">)</span></div>
 
     <span class="k">def</span> <span class="nf">_g_copy</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">newset</span><span class="p">,</span> <span class="n">set_attr</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">copyclass</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Copy set attributes.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Copy set attributes.</span>
 
 <span class="sd">        Copies all user and allowed system PyTables attributes to the</span>
 <span class="sd">        given attribute set, replacing the existing ones.</span>
@@ -727,7 +732,7 @@ <h1>Source code for tables.attributeset</h1><div class="highlight"><pre>
                         <span class="n">set_attr</span><span class="p">(</span><span class="n">attrname</span><span class="p">,</span> <span class="nb">getattr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">attrname</span><span class="p">))</span>
 
 <div class="viewcode-block" id="AttributeSet._f_copy"><a class="viewcode-back" href="../../usersguide/libref/declarative_classes.html#tables.attributeset.AttributeSet._f_copy">[docs]</a>    <span class="k">def</span> <span class="nf">_f_copy</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">where</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Copy attributes to the where node.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Copy attributes to the where node.</span>
 
 <span class="sd">        Copies all user and certain system attributes to the given where</span>
 <span class="sd">        node (a Node instance - see :ref:`NodeClassDescr`), replacing</span>
@@ -748,7 +753,7 @@ <h1>Source code for tables.attributeset</h1><div class="highlight"><pre>
         <span class="k">pass</span>
 
     <span class="k">def</span> <span class="fm">__str__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The string representation for this object.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The string representation for this object.&quot;&quot;&quot;</span>
 
         <span class="c1"># The pathname</span>
         <span class="n">pathname</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v__nodepath</span>
@@ -759,12 +764,12 @@ <h1>Source code for tables.attributeset</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="sa">f</span><span class="s2">&quot;</span><span class="si">{</span><span class="n">pathname</span><span class="si">}</span><span class="s2">._v_attrs (</span><span class="si">{</span><span class="n">classname</span><span class="si">}</span><span class="s2">), </span><span class="si">{</span><span class="n">attrnumber</span><span class="si">}</span><span class="s2"> attributes&quot;</span>
 
     <span class="k">def</span> <span class="fm">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;A detailed string representation for this object.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;A detailed string representation for this object.&quot;&quot;&quot;</span>
 
         <span class="c1"># print additional info only if there are attributes to show</span>
         <span class="n">attrnames</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_v_attrnames</span><span class="p">)</span>
         <span class="k">if</span> <span class="n">attrnames</span><span class="p">:</span>
-            <span class="n">rep</span> <span class="o">=</span> <span class="p">[</span><span class="sa">f</span><span class="s1">&#39;</span><span class="si">{</span><span class="n">attr</span><span class="si">}</span><span class="s1"> := </span><span class="si">{</span><span class="nb">getattr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">attr</span><span class="p">)</span><span class="si">!r}</span><span class="s1">&#39;</span> <span class="k">for</span> <span class="n">attr</span> <span class="ow">in</span> <span class="n">attrnames</span><span class="p">]</span>
+            <span class="n">rep</span> <span class="o">=</span> <span class="p">[</span><span class="sa">f</span><span class="s1">&#39;</span><span class="si">{</span><span class="n">attr</span><span class="si">}</span><span class="s1"> := </span><span class="si">{</span><span class="nb">getattr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span><span class="w"> </span><span class="n">attr</span><span class="p">)</span><span class="si">!r}</span><span class="s1">&#39;</span> <span class="k">for</span> <span class="n">attr</span> <span class="ow">in</span> <span class="n">attrnames</span><span class="p">]</span>
             <span class="k">return</span> <span class="sa">f</span><span class="s2">&quot;</span><span class="si">{</span><span class="bp">self</span><span class="si">!s}</span><span class="s2">:</span><span class="se">\n</span><span class="s2">   [&quot;</span> <span class="o">+</span> <span class="s1">&#39;,</span><span class="se">\n</span><span class="s1">    &#39;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">rep</span><span class="p">)</span> <span class="o">+</span> <span class="s2">&quot;]&quot;</span>
         <span class="k">else</span><span class="p">:</span>
             <span class="k">return</span> <span class="nb">str</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span></div>
diff --git a/_modules/tables/carray.html b/_modules/tables/carray.html
index a083d9e..d9934c7 100644
--- a/_modules/tables/carray.html
+++ b/_modules/tables/carray.html
@@ -3,7 +3,7 @@
 <head>
   <meta charset="utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>tables.carray &mdash; PyTables 3.8.1.dev0 documentation</title>
+  <title>tables.carray &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/graphviz.css" type="text/css" />
@@ -16,6 +16,7 @@
         <script src="../../_static/underscore.js"></script>
         <script src="../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../_static/doctools.js"></script>
+        <script src="../../_static/sphinx_highlight.js"></script>
     <script src="../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../genindex.html" />
     <link rel="search" title="Search" href="../../search.html" />
@@ -38,15 +39,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../index.html">
-            <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../index.html">
+            
+              <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.8.1.dev0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -78,9 +83,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../index.html">Module code</a> &raquo;</li>
-      <li>tables.carray</li>
+      <li><a href="../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../index.html">Module code</a></li>
+      <li class="breadcrumb-item active">tables.carray</li>
       <li class="wy-breadcrumbs-aside">
       </li>
   </ul>
@@ -107,7 +112,7 @@ <h1>Source code for tables.carray</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="CArray"><a class="viewcode-back" href="../../usersguide/libref/homogenous_storage.html#tables.CArray">[docs]</a><span class="k">class</span> <span class="nc">CArray</span><span class="p">(</span><span class="n">Array</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;This class represents homogeneous datasets in an HDF5 file.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;This class represents homogeneous datasets in an HDF5 file.</span>
 
 <span class="sd">    The difference between a CArray and a normal Array (see</span>
 <span class="sd">    :ref:`ArrayClassDescr`), from which it inherits, is that a CArray</span>
@@ -219,45 +224,45 @@ <h1>Source code for tables.carray</h1><div class="highlight"><pre>
                  <span class="n">_log</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> <span class="n">track_times</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">atom</span> <span class="o">=</span> <span class="n">atom</span>
-        <span class="sd">&quot;&quot;&quot;An `Atom` instance representing the shape, type of the atomic</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;An `Atom` instance representing the shape, type of the atomic</span>
 <span class="sd">        objects to be saved.</span>
 <span class="sd">        &quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">shape</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;The shape of the stored array.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The shape of the stored array.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">extdim</span> <span class="o">=</span> <span class="o">-</span><span class="mi">1</span>  <span class="c1"># `CArray` objects are not enlargeable by default</span>
-        <span class="sd">&quot;&quot;&quot;The index of the enlargeable dimension.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The index of the enlargeable dimension.&quot;&quot;&quot;</span>
 
         <span class="c1"># Other private attributes</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_version</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;The object version of this array.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The object version of this array.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_new</span> <span class="o">=</span> <span class="n">new</span> <span class="o">=</span> <span class="n">atom</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Is this the first time the node has been created?&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Is this the first time the node has been created?&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_new_title</span> <span class="o">=</span> <span class="n">title</span>
-        <span class="sd">&quot;&quot;&quot;New title for this node.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;New title for this node.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_convert</span> <span class="o">=</span> <span class="kc">True</span>
-        <span class="sd">&quot;&quot;&quot;Whether the ``Array`` object must be converted or not.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Whether the ``Array`` object must be converted or not.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_chunkshape</span> <span class="o">=</span> <span class="n">chunkshape</span>
-        <span class="sd">&quot;&quot;&quot;Private storage for the `chunkshape` property of the leaf.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Private storage for the `chunkshape` property of the leaf.&quot;&quot;&quot;</span>
 
         <span class="c1"># Miscellaneous iteration rubbish.</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_start</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Starting row for the current iteration.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Starting row for the current iteration.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_stop</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Stopping row for the current iteration.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Stopping row for the current iteration.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_step</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Step size for the current iteration.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Step size for the current iteration.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_nrowsread</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Number of rows read up to the current state of iteration.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Number of rows read up to the current state of iteration.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_startb</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Starting row for current buffer.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Starting row for current buffer.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_stopb</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Stopping row for current buffer. &quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Stopping row for current buffer. &quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_row</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Current row in iterators (sentinel).&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Current row in iterators (sentinel).&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_init</span> <span class="o">=</span> <span class="kc">False</span>
-        <span class="sd">&quot;&quot;&quot;Whether we are in the middle of an iteration or not (sentinel).&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Whether we are in the middle of an iteration or not (sentinel).&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">listarr</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Current buffer in iterators.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Current buffer in iterators.&quot;&quot;&quot;</span>
 
         <span class="k">if</span> <span class="n">new</span><span class="p">:</span>
             <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">atom</span><span class="p">,</span> <span class="n">Atom</span><span class="p">):</span>
@@ -293,7 +298,7 @@ <h1>Source code for tables.carray</h1><div class="highlight"><pre>
                                     <span class="n">byteorder</span><span class="p">,</span> <span class="n">_log</span><span class="p">,</span> <span class="n">track_times</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_g_create</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create a new array in file (specific part).&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create a new array in file (specific part).&quot;&quot;&quot;</span>
 
         <span class="k">if</span> <span class="nb">min</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">shape</span><span class="p">)</span> <span class="o">&lt;</span> <span class="mi">1</span><span class="p">:</span>
             <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span>
@@ -302,7 +307,7 @@ <h1>Source code for tables.carray</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_g_create_common</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">nrows</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_g_create_common</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">expectedrows</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create a new array in file (common part).&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create a new array in file (common part).&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_version</span> <span class="o">=</span> <span class="n">obversion</span>
 
@@ -330,7 +335,7 @@ <h1>Source code for tables.carray</h1><div class="highlight"><pre>
 
     <span class="k">def</span> <span class="nf">_g_copy_with_stats</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">group</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">start</span><span class="p">,</span> <span class="n">stop</span><span class="p">,</span> <span class="n">step</span><span class="p">,</span>
                            <span class="n">title</span><span class="p">,</span> <span class="n">filters</span><span class="p">,</span> <span class="n">chunkshape</span><span class="p">,</span> <span class="n">_log</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Private part of Leaf.copy() for each kind of leaf.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Private part of Leaf.copy() for each kind of leaf.&quot;&quot;&quot;</span>
 
         <span class="p">(</span><span class="n">start</span><span class="p">,</span> <span class="n">stop</span><span class="p">,</span> <span class="n">step</span><span class="p">)</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_process_range_read</span><span class="p">(</span><span class="n">start</span><span class="p">,</span> <span class="n">stop</span><span class="p">,</span> <span class="n">step</span><span class="p">)</span>
         <span class="n">maindim</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">maindim</span>
diff --git a/_modules/tables/description.html b/_modules/tables/description.html
index 71100eb..d49184f 100644
--- a/_modules/tables/description.html
+++ b/_modules/tables/description.html
@@ -3,7 +3,7 @@
 <head>
   <meta charset="utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>tables.description &mdash; PyTables 3.8.1.dev0 documentation</title>
+  <title>tables.description &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/graphviz.css" type="text/css" />
@@ -16,6 +16,7 @@
         <script src="../../_static/underscore.js"></script>
         <script src="../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../_static/doctools.js"></script>
+        <script src="../../_static/sphinx_highlight.js"></script>
     <script src="../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../genindex.html" />
     <link rel="search" title="Search" href="../../search.html" />
@@ -38,15 +39,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../index.html">
-            <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../index.html">
+            
+              <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.8.1.dev0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -78,9 +83,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../index.html">Module code</a> &raquo;</li>
-      <li>tables.description</li>
+      <li><a href="../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../index.html">Module code</a></li>
+      <li class="breadcrumb-item active">tables.description</li>
       <li class="wy-breadcrumbs-aside">
       </li>
   </ul>
@@ -106,7 +111,7 @@ <h1>Source code for tables.description</h1><div class="highlight"><pre>
 
 
 <span class="k">def</span> <span class="nf">same_position</span><span class="p">(</span><span class="n">oldmethod</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Decorate `oldmethod` to also compare the `_v_pos` attribute.&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Decorate `oldmethod` to also compare the `_v_pos` attribute.&quot;&quot;&quot;</span>
     <span class="k">def</span> <span class="nf">newmethod</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
         <span class="k">try</span><span class="p">:</span>
             <span class="n">other</span><span class="o">.</span><span class="n">_v_pos</span>
@@ -119,7 +124,7 @@ <h1>Source code for tables.description</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="Col"><a class="viewcode-back" href="../../usersguide/libref/declarative_classes.html#tables.Col">[docs]</a><span class="k">class</span> <span class="nc">Col</span><span class="p">(</span><span class="n">atom</span><span class="o">.</span><span class="n">Atom</span><span class="p">,</span> <span class="n">metaclass</span><span class="o">=</span><span class="nb">type</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Defines a non-nested column.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Defines a non-nested column.</span>
 
 <span class="sd">    Col instances are used as a means to declare the different properties of a</span>
 <span class="sd">    non-nested column in a table or nested column.  Col classes are descendants</span>
@@ -163,18 +168,18 @@ <h1>Source code for tables.description</h1><div class="highlight"><pre>
 <span class="sd">    &quot;&quot;&quot;</span>
 
     <span class="n">_class_from_prefix</span> <span class="o">=</span> <span class="p">{}</span>  <span class="c1"># filled as column classes are created</span>
-    <span class="sd">&quot;&quot;&quot;Maps column prefixes to column classes.&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Maps column prefixes to column classes.&quot;&quot;&quot;</span>
 
     <span class="nd">@classmethod</span>
     <span class="k">def</span> <span class="nf">prefix</span><span class="p">(</span><span class="bp">cls</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Return the column class prefix.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Return the column class prefix.&quot;&quot;&quot;</span>
 
         <span class="n">cname</span> <span class="o">=</span> <span class="bp">cls</span><span class="o">.</span><span class="vm">__name__</span>
         <span class="k">return</span> <span class="n">cname</span><span class="p">[:</span><span class="n">cname</span><span class="o">.</span><span class="n">rfind</span><span class="p">(</span><span class="s1">&#39;Col&#39;</span><span class="p">)]</span>
 
 <div class="viewcode-block" id="Col.from_atom"><a class="viewcode-back" href="../../usersguide/libref/declarative_classes.html#tables.Col.from_atom">[docs]</a>    <span class="nd">@classmethod</span>
     <span class="k">def</span> <span class="nf">from_atom</span><span class="p">(</span><span class="bp">cls</span><span class="p">,</span> <span class="n">atom</span><span class="p">,</span> <span class="n">pos</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">_offset</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create a Col definition from a PyTables atom.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create a Col definition from a PyTables atom.</span>
 
 <span class="sd">        An optional position may be specified as the pos argument.</span>
 
@@ -187,7 +192,7 @@ <h1>Source code for tables.description</h1><div class="highlight"><pre>
 
     <span class="nd">@classmethod</span>
     <span class="k">def</span> <span class="nf">from_sctype</span><span class="p">(</span><span class="bp">cls</span><span class="p">,</span> <span class="n">sctype</span><span class="p">,</span> <span class="n">shape</span><span class="o">=</span><span class="p">(),</span> <span class="n">dflt</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">pos</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create a `Col` definition from a NumPy scalar type `sctype`.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create a `Col` definition from a NumPy scalar type `sctype`.</span>
 
 <span class="sd">        Optional shape, default value and position may be specified as</span>
 <span class="sd">        the `shape`, `dflt` and `pos` arguments, respectively.</span>
@@ -201,7 +206,7 @@ <h1>Source code for tables.description</h1><div class="highlight"><pre>
 
     <span class="nd">@classmethod</span>
     <span class="k">def</span> <span class="nf">from_dtype</span><span class="p">(</span><span class="bp">cls</span><span class="p">,</span> <span class="n">dtype</span><span class="p">,</span> <span class="n">dflt</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">pos</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">_offset</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create a `Col` definition from a NumPy `dtype`.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create a `Col` definition from a NumPy `dtype`.</span>
 
 <span class="sd">        Optional default value and position may be specified as the</span>
 <span class="sd">        `dflt` and `pos` arguments, respectively.  The `dtype` must have</span>
@@ -216,7 +221,7 @@ <h1>Source code for tables.description</h1><div class="highlight"><pre>
 
     <span class="nd">@classmethod</span>
     <span class="k">def</span> <span class="nf">from_type</span><span class="p">(</span><span class="bp">cls</span><span class="p">,</span> <span class="nb">type</span><span class="p">,</span> <span class="n">shape</span><span class="o">=</span><span class="p">(),</span> <span class="n">dflt</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">pos</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create a `Col` definition from a PyTables `type`.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create a `Col` definition from a PyTables `type`.</span>
 
 <span class="sd">        Optional shape, default value and position may be specified as</span>
 <span class="sd">        the `shape`, `dflt` and `pos` arguments, respectively.</span>
@@ -228,7 +233,7 @@ <h1>Source code for tables.description</h1><div class="highlight"><pre>
 
     <span class="nd">@classmethod</span>
     <span class="k">def</span> <span class="nf">from_kind</span><span class="p">(</span><span class="bp">cls</span><span class="p">,</span> <span class="n">kind</span><span class="p">,</span> <span class="n">itemsize</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">shape</span><span class="o">=</span><span class="p">(),</span> <span class="n">dflt</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">pos</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create a `Col` definition from a PyTables `kind`.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create a `Col` definition from a PyTables `kind`.</span>
 
 <span class="sd">        Optional item size, shape, default value and position may be</span>
 <span class="sd">        specified as the `itemsize`, `shape`, `dflt` and `pos`</span>
@@ -242,7 +247,7 @@ <h1>Source code for tables.description</h1><div class="highlight"><pre>
 
     <span class="nd">@classmethod</span>
     <span class="k">def</span> <span class="nf">_subclass_from_prefix</span><span class="p">(</span><span class="bp">cls</span><span class="p">,</span> <span class="n">prefix</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get a column subclass for the given `prefix`.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get a column subclass for the given `prefix`.&quot;&quot;&quot;</span>
 
         <span class="n">cname</span> <span class="o">=</span> <span class="s1">&#39;</span><span class="si">%s</span><span class="s1">Col&#39;</span> <span class="o">%</span> <span class="n">prefix</span>
         <span class="n">class_from_prefix</span> <span class="o">=</span> <span class="bp">cls</span><span class="o">.</span><span class="n">_class_from_prefix</span>
@@ -251,7 +256,7 @@ <h1>Source code for tables.description</h1><div class="highlight"><pre>
         <span class="n">atombase</span> <span class="o">=</span> <span class="nb">getattr</span><span class="p">(</span><span class="n">atom</span><span class="p">,</span> <span class="s1">&#39;</span><span class="si">%s</span><span class="s1">Atom&#39;</span> <span class="o">%</span> <span class="n">prefix</span><span class="p">)</span>
 
         <span class="k">class</span> <span class="nc">NewCol</span><span class="p">(</span><span class="bp">cls</span><span class="p">,</span> <span class="n">atombase</span><span class="p">):</span>
-            <span class="sd">&quot;&quot;&quot;Defines a non-nested column of a particular type.</span>
+<span class="w">            </span><span class="sd">&quot;&quot;&quot;Defines a non-nested column of a particular type.</span>
 
 <span class="sd">            The constructor accepts the same arguments as the equivalent</span>
 <span class="sd">            `Atom` class, plus an additional ``pos`` argument for</span>
@@ -308,7 +313,7 @@ <h1>Source code for tables.description</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="sa">f</span><span class="s1">&#39;</span><span class="si">{</span><span class="n">classname</span><span class="si">}</span><span class="s1">(</span><span class="si">{</span><span class="n">atomargs</span><span class="si">}</span><span class="s1">, pos=</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">_v_pos</span><span class="si">}</span><span class="s1">)&#39;</span>
 
     <span class="k">def</span> <span class="nf">_get_init_args</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get a dictionary of instance constructor arguments.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get a dictionary of instance constructor arguments.&quot;&quot;&quot;</span>
 
         <span class="n">kwargs</span> <span class="o">=</span> <span class="p">{</span><span class="n">arg</span><span class="p">:</span> <span class="nb">getattr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">arg</span><span class="p">)</span> <span class="k">for</span> <span class="n">arg</span> <span class="ow">in</span> <span class="p">(</span><span class="s1">&#39;shape&#39;</span><span class="p">,</span> <span class="s1">&#39;dflt&#39;</span><span class="p">)}</span>
         <span class="n">kwargs</span><span class="p">[</span><span class="s1">&#39;pos&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="nb">getattr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="s1">&#39;_v_pos&#39;</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
@@ -316,7 +321,7 @@ <h1>Source code for tables.description</h1><div class="highlight"><pre>
 
 
 <span class="k">def</span> <span class="nf">_generate_col_classes</span><span class="p">():</span>
-    <span class="sd">&quot;&quot;&quot;Generate all column classes.&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Generate all column classes.&quot;&quot;&quot;</span>
 
     <span class="c1"># Abstract classes are not in the class map.</span>
     <span class="n">cprefixes</span> <span class="o">=</span> <span class="p">[</span><span class="s1">&#39;Int&#39;</span><span class="p">,</span> <span class="s1">&#39;UInt&#39;</span><span class="p">,</span> <span class="s1">&#39;Float&#39;</span><span class="p">,</span> <span class="s1">&#39;Time&#39;</span><span class="p">]</span>
@@ -387,7 +392,7 @@ <h1>Source code for tables.description</h1><div class="highlight"><pre>
 <span class="c1"># Table description classes</span>
 <span class="c1"># =========================</span>
 <div class="viewcode-block" id="Description"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Description">[docs]</a><span class="k">class</span> <span class="nc">Description</span><span class="p">:</span>
-    <span class="sd">&quot;&quot;&quot;This class represents descriptions of the structure of tables.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;This class represents descriptions of the structure of tables.</span>
 
 <span class="sd">    An instance of this class is automatically bound to Table (see</span>
 <span class="sd">    :ref:`TableClassDescr`) objects when they are created.  It provides a</span>
@@ -707,7 +712,7 @@ <h1>Source code for tables.description</h1><div class="highlight"><pre>
         <span class="n">newdict</span><span class="p">[</span><span class="s1">&#39;_v_offsets&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="p">[</span><span class="n">dtype</span><span class="o">.</span><span class="n">fields</span><span class="p">[</span><span class="n">name</span><span class="p">][</span><span class="mi">1</span><span class="p">]</span> <span class="k">for</span> <span class="n">name</span> <span class="ow">in</span> <span class="n">dtype</span><span class="o">.</span><span class="n">names</span><span class="p">]</span>
 
     <span class="k">def</span> <span class="nf">_g_set_nested_names_descr</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Computes the nested names and descriptions for nested datatypes.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Computes the nested names and descriptions for nested datatypes.&quot;&quot;&quot;</span>
 
         <span class="n">names</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_names</span>
         <span class="n">fmts</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_nested_formats</span>
@@ -724,7 +729,7 @@ <h1>Source code for tables.description</h1><div class="highlight"><pre>
                 <span class="bp">self</span><span class="o">.</span><span class="n">_v_is_nested</span> <span class="o">=</span> <span class="kc">True</span>
 
     <span class="k">def</span> <span class="nf">_g_set_path_names</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Compute the pathnames for arbitrary nested descriptions.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Compute the pathnames for arbitrary nested descriptions.</span>
 
 <span class="sd">        This method sets the ``_v_pathname`` and ``_v_pathnames``</span>
 <span class="sd">        attributes of all the elements (both descriptions and columns)</span>
@@ -800,7 +805,7 @@ <h1>Source code for tables.description</h1><div class="highlight"><pre>
                 <span class="c1"># (Nothing is pushed, we are done with this description.)</span>
 
 <div class="viewcode-block" id="Description._f_walk"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Description._f_walk">[docs]</a>    <span class="k">def</span> <span class="nf">_f_walk</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="nb">type</span><span class="o">=</span><span class="s1">&#39;All&#39;</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Iterate over nested columns.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Iterate over nested columns.</span>
 
 <span class="sd">        If type is &#39;All&#39; (the default), all column description objects (Col and</span>
 <span class="sd">        Description instances) are yielded in top-to-bottom order (preorder).</span>
@@ -828,7 +833,7 @@ <h1>Source code for tables.description</h1><div class="highlight"><pre>
                         <span class="k">yield</span> <span class="n">new_object</span>  <span class="c1"># yield column</span></div>
 
     <span class="k">def</span> <span class="fm">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Gives a detailed Description column representation.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Gives a detailed Description column representation.&quot;&quot;&quot;</span>
 
         <span class="n">rep</span> <span class="o">=</span> <span class="p">[</span><span class="s1">&#39;</span><span class="si">%s</span><span class="se">\&quot;</span><span class="si">%s</span><span class="se">\&quot;</span><span class="s1">: </span><span class="si">%r</span><span class="s1">&#39;</span> <span class="o">%</span>
                <span class="p">(</span><span class="s2">&quot;  &quot;</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_nestedlvl</span><span class="p">,</span> <span class="n">k</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_colobjects</span><span class="p">[</span><span class="n">k</span><span class="p">])</span>
@@ -836,16 +841,16 @@ <h1>Source code for tables.description</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="s1">&#39;{</span><span class="se">\n</span><span class="s1">  </span><span class="si">%s</span><span class="s1">}&#39;</span> <span class="o">%</span> <span class="p">(</span><span class="s1">&#39;,</span><span class="se">\n</span><span class="s1">  &#39;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">rep</span><span class="p">))</span>
 
     <span class="k">def</span> <span class="fm">__str__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Gives a brief Description representation.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Gives a brief Description representation.&quot;&quot;&quot;</span>
 
         <span class="k">return</span> <span class="sa">f</span><span class="s1">&#39;Description(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">_v_nested_descr</span><span class="si">}</span><span class="s1">)&#39;</span></div>
 
 
 <span class="k">class</span> <span class="nc">MetaIsDescription</span><span class="p">(</span><span class="nb">type</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Helper metaclass to return the class variables as a dictionary.&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Helper metaclass to return the class variables as a dictionary.&quot;&quot;&quot;</span>
 
     <span class="k">def</span> <span class="fm">__new__</span><span class="p">(</span><span class="n">mcs</span><span class="p">,</span> <span class="n">classname</span><span class="p">,</span> <span class="n">bases</span><span class="p">,</span> <span class="n">classdict</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Return a new class with a &quot;columns&quot; attribute filled.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Return a new class with a &quot;columns&quot; attribute filled.&quot;&quot;&quot;</span>
 
         <span class="n">newdict</span> <span class="o">=</span> <span class="p">{</span><span class="s2">&quot;columns&quot;</span><span class="p">:</span> <span class="p">{},</span> <span class="p">}</span>
         <span class="k">if</span> <span class="s1">&#39;__doc__&#39;</span> <span class="ow">in</span> <span class="n">classdict</span><span class="p">:</span>
@@ -864,7 +869,7 @@ <h1>Source code for tables.description</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="IsDescription"><a class="viewcode-back" href="../../usersguide/libref/declarative_classes.html#tables.IsDescription">[docs]</a><span class="k">class</span> <span class="nc">IsDescription</span><span class="p">(</span><span class="n">metaclass</span><span class="o">=</span><span class="n">MetaIsDescription</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Description of the structure of a table or nested column.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Description of the structure of a table or nested column.</span>
 
 <span class="sd">    This class is designed to be used as an easy, yet meaningful way to</span>
 <span class="sd">    describe the structure of new Table (see :ref:`TableClassDescr`) datasets</span>
@@ -909,7 +914,7 @@ <h1>Source code for tables.description</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="descr_from_dtype"><a class="viewcode-back" href="../../usersguide/libref/declarative_classes.html#tables.descr_from_dtype">[docs]</a><span class="k">def</span> <span class="nf">descr_from_dtype</span><span class="p">(</span><span class="n">dtype_</span><span class="p">,</span> <span class="n">ptparams</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Get a description instance and byteorder from a (nested) NumPy dtype.&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Get a description instance and byteorder from a (nested) NumPy dtype.&quot;&quot;&quot;</span>
 
     <span class="n">fields</span> <span class="o">=</span> <span class="p">{}</span>
     <span class="n">fbyteorder</span> <span class="o">=</span> <span class="s1">&#39;|&#39;</span>
@@ -944,7 +949,7 @@ <h1>Source code for tables.description</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="dtype_from_descr"><a class="viewcode-back" href="../../usersguide/libref/declarative_classes.html#tables.dtype_from_descr">[docs]</a><span class="k">def</span> <span class="nf">dtype_from_descr</span><span class="p">(</span><span class="n">descr</span><span class="p">,</span> <span class="n">byteorder</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">ptparams</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Get a (nested) NumPy dtype from a description instance and byteorder.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Get a (nested) NumPy dtype from a description instance and byteorder.</span>
 
 <span class="sd">    The descr parameter can be a Description or IsDescription</span>
 <span class="sd">    instance, sub-class of IsDescription or a dictionary.</span>
@@ -970,7 +975,7 @@ <h1>Source code for tables.description</h1><div class="highlight"><pre>
 
 
 <span class="k">if</span> <span class="vm">__name__</span> <span class="o">==</span> <span class="s2">&quot;__main__&quot;</span><span class="p">:</span>
-    <span class="sd">&quot;&quot;&quot;Test code.&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Test code.&quot;&quot;&quot;</span>
 
     <span class="k">class</span> <span class="nc">Info</span><span class="p">(</span><span class="n">IsDescription</span><span class="p">):</span>
         <span class="n">_v_pos</span> <span class="o">=</span> <span class="mi">2</span>
@@ -978,7 +983,7 @@ <h1>Source code for tables.description</h1><div class="highlight"><pre>
         <span class="n">Value</span> <span class="o">=</span> <span class="n">Float64Col</span><span class="p">()</span>
 
     <span class="k">class</span> <span class="nc">Test</span><span class="p">(</span><span class="n">IsDescription</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;A description that has several columns.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;A description that has several columns.&quot;&quot;&quot;</span>
 
         <span class="n">x</span> <span class="o">=</span> <span class="n">Col</span><span class="o">.</span><span class="n">from_type</span><span class="p">(</span><span class="s2">&quot;int32&quot;</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">0</span><span class="p">,</span> <span class="n">pos</span><span class="o">=</span><span class="mi">0</span><span class="p">)</span>
         <span class="n">y</span> <span class="o">=</span> <span class="n">Col</span><span class="o">.</span><span class="n">from_kind</span><span class="p">(</span><span class="s1">&#39;float&#39;</span><span class="p">,</span> <span class="n">dflt</span><span class="o">=</span><span class="mi">1</span><span class="p">,</span> <span class="n">shape</span><span class="o">=</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">))</span>
diff --git a/_modules/tables/earray.html b/_modules/tables/earray.html
index c971af2..a47d77e 100644
--- a/_modules/tables/earray.html
+++ b/_modules/tables/earray.html
@@ -3,7 +3,7 @@
 <head>
   <meta charset="utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>tables.earray &mdash; PyTables 3.8.1.dev0 documentation</title>
+  <title>tables.earray &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/graphviz.css" type="text/css" />
@@ -16,6 +16,7 @@
         <script src="../../_static/underscore.js"></script>
         <script src="../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../_static/doctools.js"></script>
+        <script src="../../_static/sphinx_highlight.js"></script>
     <script src="../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../genindex.html" />
     <link rel="search" title="Search" href="../../search.html" />
@@ -38,15 +39,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../index.html">
-            <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../index.html">
+            
+              <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.8.1.dev0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -78,9 +83,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../index.html">Module code</a> &raquo;</li>
-      <li>tables.earray</li>
+      <li><a href="../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../index.html">Module code</a></li>
+      <li class="breadcrumb-item active">tables.earray</li>
       <li class="wy-breadcrumbs-aside">
       </li>
   </ul>
@@ -107,7 +112,7 @@ <h1>Source code for tables.earray</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="EArray"><a class="viewcode-back" href="../../usersguide/libref/homogenous_storage.html#tables.EArray">[docs]</a><span class="k">class</span> <span class="nc">EArray</span><span class="p">(</span><span class="n">CArray</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;This class represents extendable, homogeneous datasets in an HDF5 file.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;This class represents extendable, homogeneous datasets in an HDF5 file.</span>
 
 <span class="sd">    The main difference between an EArray and a CArray (see</span>
 <span class="sd">    :ref:`CArrayClassDescr`), from which it inherits, is that the former</span>
@@ -229,14 +234,14 @@ <h1>Source code for tables.earray</h1><div class="highlight"><pre>
         <span class="k">if</span> <span class="n">expectedrows</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
             <span class="n">expectedrows</span> <span class="o">=</span> <span class="n">parentnode</span><span class="o">.</span><span class="n">_v_file</span><span class="o">.</span><span class="n">params</span><span class="p">[</span><span class="s1">&#39;EXPECTED_ROWS_EARRAY&#39;</span><span class="p">]</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_expectedrows</span> <span class="o">=</span> <span class="n">expectedrows</span>
-        <span class="sd">&quot;&quot;&quot;The expected number of rows to be stored in the array.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The expected number of rows to be stored in the array.&quot;&quot;&quot;</span>
 
         <span class="c1"># Call the parent (CArray) init code</span>
         <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="n">parentnode</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">atom</span><span class="p">,</span> <span class="n">shape</span><span class="p">,</span> <span class="n">title</span><span class="p">,</span> <span class="n">filters</span><span class="p">,</span>
                          <span class="n">chunkshape</span><span class="p">,</span> <span class="n">byteorder</span><span class="p">,</span> <span class="n">_log</span><span class="p">,</span> <span class="n">track_times</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_g_create</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create a new array in file (specific part).&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create a new array in file (specific part).&quot;&quot;&quot;</span>
 
         <span class="c1"># Pre-conditions and extdim computation</span>
         <span class="n">zerodims</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">sum</span><span class="p">(</span><span class="n">np</span><span class="o">.</span><span class="n">array</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">shape</span><span class="p">)</span> <span class="o">==</span> <span class="mi">0</span><span class="p">)</span>
@@ -256,7 +261,7 @@ <h1>Source code for tables.earray</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_g_create_common</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_v_expectedrows</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_check_shape_append</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">nparr</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Test that nparr shape is consistent with underlying EArray.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Test that nparr shape is consistent with underlying EArray.&quot;&quot;&quot;</span>
 
         <span class="c1"># Does the array conform to self expandibility?</span>
         <span class="n">myrank</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">shape</span><span class="p">)</span>
@@ -272,7 +277,7 @@ <h1>Source code for tables.earray</h1><div class="highlight"><pre>
                                   <span class="s2">&quot;dimension </span><span class="si">%d</span><span class="s2">&quot;</span><span class="p">)</span> <span class="o">%</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_v_pathname</span><span class="p">,</span> <span class="n">i</span><span class="p">))</span>
 
 <div class="viewcode-block" id="EArray.append"><a class="viewcode-back" href="../../usersguide/libref/homogenous_storage.html#tables.EArray.append">[docs]</a>    <span class="k">def</span> <span class="nf">append</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">sequence</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Add a sequence of data to the end of the dataset.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Add a sequence of data to the end of the dataset.</span>
 
 <span class="sd">        The sequence must have the same type as the array; otherwise a</span>
 <span class="sd">        TypeError is raised. In the same way, the dimensions of the</span>
@@ -296,7 +301,7 @@ <h1>Source code for tables.earray</h1><div class="highlight"><pre>
 
     <span class="k">def</span> <span class="nf">_g_copy_with_stats</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">group</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">start</span><span class="p">,</span> <span class="n">stop</span><span class="p">,</span> <span class="n">step</span><span class="p">,</span>
                            <span class="n">title</span><span class="p">,</span> <span class="n">filters</span><span class="p">,</span> <span class="n">chunkshape</span><span class="p">,</span> <span class="n">_log</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Private part of Leaf.copy() for each kind of leaf.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Private part of Leaf.copy() for each kind of leaf.&quot;&quot;&quot;</span>
 
         <span class="p">(</span><span class="n">start</span><span class="p">,</span> <span class="n">stop</span><span class="p">,</span> <span class="n">step</span><span class="p">)</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_process_range_read</span><span class="p">(</span><span class="n">start</span><span class="p">,</span> <span class="n">stop</span><span class="p">,</span> <span class="n">step</span><span class="p">)</span>
         <span class="c1"># Build the new EArray object</span>
diff --git a/_modules/tables/exceptions.html b/_modules/tables/exceptions.html
index b31bb34..28faae2 100644
--- a/_modules/tables/exceptions.html
+++ b/_modules/tables/exceptions.html
@@ -3,7 +3,7 @@
 <head>
   <meta charset="utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>tables.exceptions &mdash; PyTables 3.8.1.dev0 documentation</title>
+  <title>tables.exceptions &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/graphviz.css" type="text/css" />
@@ -16,6 +16,7 @@
         <script src="../../_static/underscore.js"></script>
         <script src="../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../_static/doctools.js"></script>
+        <script src="../../_static/sphinx_highlight.js"></script>
     <script src="../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../genindex.html" />
     <link rel="search" title="Search" href="../../search.html" />
@@ -38,15 +39,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../index.html">
-            <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../index.html">
+            
+              <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.8.1.dev0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -78,9 +83,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../index.html">Module code</a> &raquo;</li>
-      <li>tables.exceptions</li>
+      <li><a href="../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../index.html">Module code</a></li>
+      <li class="breadcrumb-item active">tables.exceptions</li>
       <li class="wy-breadcrumbs-aside">
       </li>
   </ul>
@@ -123,7 +128,7 @@ <h1>Source code for tables.exceptions</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="HDF5ExtError"><a class="viewcode-back" href="../../usersguide/libref/helper_classes.html#tables.HDF5ExtError">[docs]</a><span class="k">class</span> <span class="nc">HDF5ExtError</span><span class="p">(</span><span class="ne">RuntimeError</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;A low level HDF5 operation failed.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;A low level HDF5 operation failed.</span>
 
 <span class="sd">    This exception is raised the low level PyTables components used for</span>
 <span class="sd">    accessing HDF5 files.  It usually signals that something is not</span>
@@ -163,7 +168,7 @@ <h1>Source code for tables.exceptions</h1><div class="highlight"><pre>
     <span class="n">_dump_h5_backtrace</span> <span class="o">=</span> <span class="kc">None</span>
 
     <span class="n">DEFAULT_H5_BACKTRACE_POLICY</span> <span class="o">=</span> <span class="s2">&quot;VERBOSE&quot;</span>
-    <span class="sd">&quot;&quot;&quot;Default policy for HDF5 backtrace handling</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Default policy for HDF5 backtrace handling</span>
 
 <span class="sd">    * if set to False the HDF5 back trace is ignored and the</span>
 <span class="sd">      :attr:`HDF5ExtError.h5backtrace` attribute is set to None</span>
@@ -217,7 +222,7 @@ <h1>Source code for tables.exceptions</h1><div class="highlight"><pre>
 
         <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_h5bt_policy</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">_dump_h5_backtrace</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
             <span class="bp">self</span><span class="o">.</span><span class="n">h5backtrace</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_dump_h5_backtrace</span><span class="p">()</span>
-            <span class="sd">&quot;&quot;&quot;HDF5 back trace.</span>
+<span class="w">            </span><span class="sd">&quot;&quot;&quot;HDF5 back trace.</span>
 
 <span class="sd">            Contains the HDF5 back trace as a (possibly empty) list of</span>
 <span class="sd">            tuples.  Each tuple has the following format::</span>
@@ -244,7 +249,7 @@ <h1>Source code for tables.exceptions</h1><div class="highlight"><pre>
             <span class="bp">self</span><span class="o">.</span><span class="n">h5backtrace</span> <span class="o">=</span> <span class="kc">None</span>
 
     <span class="k">def</span> <span class="fm">__str__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Returns a sting representation of the exception.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Returns a sting representation of the exception.</span>
 
 <span class="sd">        The actual result depends on policy set in the initializer</span>
 <span class="sd">        :meth:`HDF5ExtError.__init__`.</span>
@@ -275,7 +280,7 @@ <h1>Source code for tables.exceptions</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">msg</span>
 
 <div class="viewcode-block" id="HDF5ExtError.format_h5_backtrace"><a class="viewcode-back" href="../../usersguide/libref/helper_classes.html#tables.HDF5ExtError.format_h5_backtrace">[docs]</a>    <span class="k">def</span> <span class="nf">format_h5_backtrace</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">backtrace</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Convert the HDF5 trace back represented as a list of tuples.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Convert the HDF5 trace back represented as a list of tuples.</span>
 <span class="sd">        (see :attr:`HDF5ExtError.h5backtrace`) into a string.</span>
 
 <span class="sd">        .. versionadded:: 2.4</span>
@@ -298,7 +303,7 @@ <h1>Source code for tables.exceptions</h1><div class="highlight"><pre>
 <span class="c1"># raised by ``file`` objects on certain operations.</span>
 
 <div class="viewcode-block" id="ClosedNodeError"><a class="viewcode-back" href="../../usersguide/libref/helper_classes.html#tables.ClosedNodeError">[docs]</a><span class="k">class</span> <span class="nc">ClosedNodeError</span><span class="p">(</span><span class="ne">ValueError</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;The operation can not be completed because the node is closed.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;The operation can not be completed because the node is closed.</span>
 
 <span class="sd">    For instance, listing the children of a closed group is not allowed.</span>
 
@@ -308,7 +313,7 @@ <h1>Source code for tables.exceptions</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="ClosedFileError"><a class="viewcode-back" href="../../usersguide/libref/helper_classes.html#tables.ClosedFileError">[docs]</a><span class="k">class</span> <span class="nc">ClosedFileError</span><span class="p">(</span><span class="ne">ValueError</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;The operation can not be completed because the hosting file is closed.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;The operation can not be completed because the hosting file is closed.</span>
 
 <span class="sd">    For instance, getting an existing node from a closed file is not</span>
 <span class="sd">    allowed.</span>
@@ -319,7 +324,7 @@ <h1>Source code for tables.exceptions</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="FileModeError"><a class="viewcode-back" href="../../usersguide/libref/helper_classes.html#tables.FileModeError">[docs]</a><span class="k">class</span> <span class="nc">FileModeError</span><span class="p">(</span><span class="ne">ValueError</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;The operation can not be carried out because the mode in which the</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;The operation can not be carried out because the mode in which the</span>
 <span class="sd">    hosting file is opened is not adequate.</span>
 
 <span class="sd">    For instance, removing an existing leaf from a read-only file is not</span>
@@ -331,7 +336,7 @@ <h1>Source code for tables.exceptions</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="NodeError"><a class="viewcode-back" href="../../usersguide/libref/helper_classes.html#tables.NodeError">[docs]</a><span class="k">class</span> <span class="nc">NodeError</span><span class="p">(</span><span class="ne">AttributeError</span><span class="p">,</span> <span class="ne">LookupError</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Invalid hierarchy manipulation operation requested.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Invalid hierarchy manipulation operation requested.</span>
 
 <span class="sd">    This exception is raised when the user requests an operation on the</span>
 <span class="sd">    hierarchy which can not be run because of the current layout of the</span>
@@ -351,7 +356,7 @@ <h1>Source code for tables.exceptions</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="NoSuchNodeError"><a class="viewcode-back" href="../../usersguide/libref/helper_classes.html#tables.NoSuchNodeError">[docs]</a><span class="k">class</span> <span class="nc">NoSuchNodeError</span><span class="p">(</span><span class="n">NodeError</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;An operation was requested on a node that does not exist.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;An operation was requested on a node that does not exist.</span>
 
 <span class="sd">    This exception is raised when an operation gets a path name or a</span>
 <span class="sd">    ``(where, name)`` pair leading to a nonexistent node.</span>
@@ -362,7 +367,7 @@ <h1>Source code for tables.exceptions</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="UndoRedoError"><a class="viewcode-back" href="../../usersguide/libref/helper_classes.html#tables.UndoRedoError">[docs]</a><span class="k">class</span> <span class="nc">UndoRedoError</span><span class="p">(</span><span class="ne">Exception</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Problems with doing/redoing actions with Undo/Redo feature.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Problems with doing/redoing actions with Undo/Redo feature.</span>
 
 <span class="sd">    This exception indicates a problem related to the Undo/Redo</span>
 <span class="sd">    mechanism, such as trying to undo or redo actions with this</span>
@@ -374,7 +379,7 @@ <h1>Source code for tables.exceptions</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="UndoRedoWarning"><a class="viewcode-back" href="../../usersguide/libref/helper_classes.html#tables.UndoRedoWarning">[docs]</a><span class="k">class</span> <span class="nc">UndoRedoWarning</span><span class="p">(</span><span class="ne">Warning</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Issued when an action not supporting Undo/Redo is run.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Issued when an action not supporting Undo/Redo is run.</span>
 
 <span class="sd">    This warning is only shown when the Undo/Redo mechanism is enabled.</span>
 
@@ -384,7 +389,7 @@ <h1>Source code for tables.exceptions</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="NaturalNameWarning"><a class="viewcode-back" href="../../usersguide/libref/helper_classes.html#tables.NaturalNameWarning">[docs]</a><span class="k">class</span> <span class="nc">NaturalNameWarning</span><span class="p">(</span><span class="ne">Warning</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Issued when a non-pythonic name is given for a node.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Issued when a non-pythonic name is given for a node.</span>
 
 <span class="sd">    This is not an error and may even be very useful in certain</span>
 <span class="sd">    contexts, but one should be aware that such nodes cannot be</span>
@@ -396,7 +401,7 @@ <h1>Source code for tables.exceptions</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="PerformanceWarning"><a class="viewcode-back" href="../../usersguide/libref/helper_classes.html#tables.PerformanceWarning">[docs]</a><span class="k">class</span> <span class="nc">PerformanceWarning</span><span class="p">(</span><span class="ne">Warning</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Warning for operations which may cause a performance drop.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Warning for operations which may cause a performance drop.</span>
 
 <span class="sd">    This warning is issued when an operation is made on the database</span>
 <span class="sd">    which may cause it to slow down on future operations (i.e. making</span>
@@ -408,7 +413,7 @@ <h1>Source code for tables.exceptions</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="FlavorError"><a class="viewcode-back" href="../../usersguide/libref/helper_classes.html#tables.FlavorError">[docs]</a><span class="k">class</span> <span class="nc">FlavorError</span><span class="p">(</span><span class="ne">ValueError</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Unsupported or unavailable flavor or flavor conversion.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Unsupported or unavailable flavor or flavor conversion.</span>
 
 <span class="sd">    This exception is raised when an unsupported or unavailable flavor</span>
 <span class="sd">    is given to a dataset, or when a conversion of data between two</span>
@@ -420,7 +425,7 @@ <h1>Source code for tables.exceptions</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="FlavorWarning"><a class="viewcode-back" href="../../usersguide/libref/helper_classes.html#tables.FlavorWarning">[docs]</a><span class="k">class</span> <span class="nc">FlavorWarning</span><span class="p">(</span><span class="ne">Warning</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Unsupported or unavailable flavor conversion.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Unsupported or unavailable flavor conversion.</span>
 
 <span class="sd">    This warning is issued when a conversion of data between two given</span>
 <span class="sd">    flavors is not supported nor available, and raising an error would</span>
@@ -435,7 +440,7 @@ <h1>Source code for tables.exceptions</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="FiltersWarning"><a class="viewcode-back" href="../../usersguide/libref/helper_classes.html#tables.FiltersWarning">[docs]</a><span class="k">class</span> <span class="nc">FiltersWarning</span><span class="p">(</span><span class="ne">Warning</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Unavailable filters.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Unavailable filters.</span>
 
 <span class="sd">    This warning is issued when a valid filter is specified but it is</span>
 <span class="sd">    not available in the system.  It may mean that an available default</span>
@@ -447,7 +452,7 @@ <h1>Source code for tables.exceptions</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="OldIndexWarning"><a class="viewcode-back" href="../../usersguide/libref/helper_classes.html#tables.OldIndexWarning">[docs]</a><span class="k">class</span> <span class="nc">OldIndexWarning</span><span class="p">(</span><span class="ne">Warning</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Unsupported index format.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Unsupported index format.</span>
 
 <span class="sd">    This warning is issued when an index in an unsupported format is</span>
 <span class="sd">    found.  The index will be marked as invalid and will behave as if</span>
@@ -459,7 +464,7 @@ <h1>Source code for tables.exceptions</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="DataTypeWarning"><a class="viewcode-back" href="../../usersguide/libref/helper_classes.html#tables.DataTypeWarning">[docs]</a><span class="k">class</span> <span class="nc">DataTypeWarning</span><span class="p">(</span><span class="ne">Warning</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Unsupported data type.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Unsupported data type.</span>
 
 <span class="sd">    This warning is issued when an unsupported HDF5 data type is found</span>
 <span class="sd">    (normally in a file created with other tool than PyTables).</span>
@@ -470,7 +475,7 @@ <h1>Source code for tables.exceptions</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="ExperimentalFeatureWarning"><a class="viewcode-back" href="../../usersguide/libref/helper_classes.html#tables.ExperimentalFeatureWarning">[docs]</a><span class="k">class</span> <span class="nc">ExperimentalFeatureWarning</span><span class="p">(</span><span class="ne">Warning</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Generic warning for experimental features.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Generic warning for experimental features.</span>
 
 <span class="sd">    This warning is issued when using a functionality that is still</span>
 <span class="sd">    experimental and that users have to use with care.</span>
@@ -480,7 +485,7 @@ <h1>Source code for tables.exceptions</h1><div class="highlight"><pre>
 
 
 <span class="k">class</span> <span class="nc">UnclosedFileWarning</span><span class="p">(</span><span class="ne">Warning</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Warning raised when there are still open files at program exit</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Warning raised when there are still open files at program exit</span>
 
 <span class="sd">    Pytables will close remaining open files at exit, but raise </span>
 <span class="sd">    this warning.</span>
diff --git a/_modules/tables/expression.html b/_modules/tables/expression.html
index 3fa0cb8..538c47b 100644
--- a/_modules/tables/expression.html
+++ b/_modules/tables/expression.html
@@ -3,7 +3,7 @@
 <head>
   <meta charset="utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>tables.expression &mdash; PyTables 3.8.1.dev0 documentation</title>
+  <title>tables.expression &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/graphviz.css" type="text/css" />
@@ -16,6 +16,7 @@
         <script src="../../_static/underscore.js"></script>
         <script src="../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../_static/doctools.js"></script>
+        <script src="../../_static/sphinx_highlight.js"></script>
     <script src="../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../genindex.html" />
     <link rel="search" title="Search" href="../../search.html" />
@@ -38,15 +39,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../index.html">
-            <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../index.html">
+            
+              <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.8.1.dev0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -78,9 +83,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../index.html">Module code</a> &raquo;</li>
-      <li>tables.expression</li>
+      <li><a href="../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../index.html">Module code</a></li>
+      <li class="breadcrumb-item active">tables.expression</li>
       <li class="wy-breadcrumbs-aside">
       </li>
   </ul>
@@ -104,7 +109,7 @@ <h1>Source code for tables.expression</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="Expr"><a class="viewcode-back" href="../../usersguide/libref/expr_class.html#tables.Expr">[docs]</a><span class="k">class</span> <span class="nc">Expr</span><span class="p">:</span>
-    <span class="sd">&quot;&quot;&quot;A class for evaluating expressions with arbitrary array-like objects.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;A class for evaluating expressions with arbitrary array-like objects.</span>
 
 <span class="sd">    Expr is a class for evaluating expressions containing array-like objects.</span>
 <span class="sd">    With it, you can evaluate expressions (like &quot;3 * a + 4 * b&quot;) that</span>
@@ -219,7 +224,7 @@ <h1>Source code for tables.expression</h1><div class="highlight"><pre>
 <span class="sd">    &quot;&quot;&quot;</span>
 
     <span class="n">_exprvars_cache</span> <span class="o">=</span> <span class="p">{}</span>
-    <span class="sd">&quot;&quot;&quot;Cache of variables participating in expressions.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Cache of variables participating in expressions.</span>
 
 <span class="sd">    .. versionadded:: 3.0</span>
 
@@ -228,35 +233,35 @@ <h1>Source code for tables.expression</h1><div class="highlight"><pre>
     <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">expr</span><span class="p">,</span> <span class="n">uservars</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">append_mode</span> <span class="o">=</span> <span class="kc">False</span>
-        <span class="sd">&quot;&quot;&quot;The append mode for user-provided output containers.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The append mode for user-provided output containers.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">maindim</span> <span class="o">=</span> <span class="mi">0</span>
-        <span class="sd">&quot;&quot;&quot;Common main dimension for inputs in expression.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Common main dimension for inputs in expression.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">names</span> <span class="o">=</span> <span class="p">[]</span>
-        <span class="sd">&quot;&quot;&quot;The names of variables in expression (list).&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The names of variables in expression (list).&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">out</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;The user-provided container (if any) for the expression outcome.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The user-provided container (if any) for the expression outcome.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">o_start</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;The start range selection for the user-provided output.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The start range selection for the user-provided output.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">o_stop</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;The stop range selection for the user-provided output.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The stop range selection for the user-provided output.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">o_step</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;The step range selection for the user-provided output.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The step range selection for the user-provided output.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">shape</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Common shape for the arrays in expression.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Common shape for the arrays in expression.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">start</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">stop</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">step</span> <span class="o">=</span> <span class="p">(</span><span class="kc">None</span><span class="p">,)</span> <span class="o">*</span> <span class="mi">3</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">start</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;The start range selection for the input.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The start range selection for the input.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">stop</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;The stop range selection for the input.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The stop range selection for the input.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">step</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;The step range selection for the input.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The step range selection for the input.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">values</span> <span class="o">=</span> <span class="p">[]</span>
-        <span class="sd">&quot;&quot;&quot;The values of variables in expression (list).&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The values of variables in expression (list).&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_compiled_expr</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;The compiled expression.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The compiled expression.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_single_row_out</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;A sample of the output with just a single row.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;A sample of the output with just a single row.&quot;&quot;&quot;</span>
 
         <span class="c1"># First, get the signature for the arrays in expression</span>
         <span class="n">vars_</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_required_expr_vars</span><span class="p">(</span><span class="n">expr</span><span class="p">,</span> <span class="n">uservars</span><span class="p">)</span>
@@ -318,7 +323,7 @@ <h1>Source code for tables.expression</h1><div class="highlight"><pre>
     <span class="c1"># The next method is similar to their counterpart in `Table`, but</span>
     <span class="c1"># adapted to the `Expr` own requirements.</span>
     <span class="k">def</span> <span class="nf">_required_expr_vars</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">expression</span><span class="p">,</span> <span class="n">uservars</span><span class="p">,</span> <span class="n">depth</span><span class="o">=</span><span class="mi">2</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get the variables required by the `expression`.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get the variables required by the `expression`.</span>
 
 <span class="sd">        A new dictionary defining the variables used in the `expression`</span>
 <span class="sd">        is returned.  Required variables are first looked up in the</span>
@@ -395,7 +400,7 @@ <h1>Source code for tables.expression</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">reqvars</span>
 
 <div class="viewcode-block" id="Expr.set_inputs_range"><a class="viewcode-back" href="../../usersguide/libref/expr_class.html#tables.Expr.set_inputs_range">[docs]</a>    <span class="k">def</span> <span class="nf">set_inputs_range</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">start</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">stop</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">step</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Define a range for all inputs in expression.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Define a range for all inputs in expression.</span>
 
 <span class="sd">        The computation will only take place for the range defined by</span>
 <span class="sd">        the start, stop and step parameters in the main dimension of</span>
@@ -411,7 +416,7 @@ <h1>Source code for tables.expression</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">step</span> <span class="o">=</span> <span class="n">step</span></div>
 
 <div class="viewcode-block" id="Expr.set_output"><a class="viewcode-back" href="../../usersguide/libref/expr_class.html#tables.Expr.set_output">[docs]</a>    <span class="k">def</span> <span class="nf">set_output</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">out</span><span class="p">,</span> <span class="n">append_mode</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Set out as container for output as well as the append_mode.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Set out as container for output as well as the append_mode.</span>
 
 <span class="sd">        The out must be a container that is meant to keep the outcome of</span>
 <span class="sd">        the expression.  It should be an homogeneous type container and</span>
@@ -443,7 +448,7 @@ <h1>Source code for tables.expression</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">append_mode</span> <span class="o">=</span> <span class="n">append_mode</span></div>
 
 <div class="viewcode-block" id="Expr.set_output_range"><a class="viewcode-back" href="../../usersguide/libref/expr_class.html#tables.Expr.set_output_range">[docs]</a>    <span class="k">def</span> <span class="nf">set_output_range</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">start</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">stop</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">step</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Define a range for user-provided output object.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Define a range for user-provided output object.</span>
 
 <span class="sd">        The output object will only be modified in the range specified by the</span>
 <span class="sd">        start, stop and step parameters in the main dimension of output (or the</span>
@@ -462,7 +467,7 @@ <h1>Source code for tables.expression</h1><div class="highlight"><pre>
     <span class="c1"># Although the next code is similar to the method in `Leaf`, it</span>
     <span class="c1"># allows the use of pure NumPy objects.</span>
     <span class="k">def</span> <span class="nf">_calc_nrowsinbuf</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">object_</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Calculate the number of rows that will fit in a buffer.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Calculate the number of rows that will fit in a buffer.&quot;&quot;&quot;</span>
 
         <span class="c1"># Compute the rowsize for the *leading* dimension</span>
         <span class="n">shape_</span> <span class="o">=</span> <span class="nb">list</span><span class="p">(</span><span class="n">object_</span><span class="o">.</span><span class="n">shape</span><span class="p">)</span>
@@ -484,7 +489,7 @@ <h1>Source code for tables.expression</h1><div class="highlight"><pre>
             <span class="n">maxrowsize</span> <span class="o">=</span> <span class="n">BUFFER_TIMES</span> <span class="o">*</span> <span class="n">buffersize</span>
             <span class="k">if</span> <span class="n">rowsize</span> <span class="o">&gt;</span> <span class="n">maxrowsize</span><span class="p">:</span>
                 <span class="n">warnings</span><span class="o">.</span><span class="n">warn</span><span class="p">(</span><span class="s2">&quot;&quot;&quot;</span><span class="se">\</span>
-<span class="s2">The object ``</span><span class="si">%s</span><span class="s2">`` is exceeding the maximum recommended rowsize (</span><span class="si">%d</span><span class="s2"></span>
+<span class="s2">The object ``</span><span class="si">%s</span><span class="s2">`` is exceeding the maximum recommended rowsize (</span><span class="si">%d</span>
 <span class="s2">bytes); be ready to see PyTables asking for *lots* of memory and</span>
 <span class="s2">possibly slow I/O.  You may want to reduce the rowsize by trimming the</span>
 <span class="s2">value of dimensions that are orthogonal (and preferably close) to the</span>
@@ -495,7 +500,7 @@ <h1>Source code for tables.expression</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">nrowsinbuf</span>
 
     <span class="k">def</span> <span class="nf">_guess_shape</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Guess the shape of the output of the expression.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Guess the shape of the output of the expression.&quot;&quot;&quot;</span>
 
         <span class="c1"># First, compute the maximum dimension of inputs and maindim</span>
         <span class="c1"># (if it exists)</span>
@@ -543,7 +548,7 @@ <h1>Source code for tables.expression</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">shape</span><span class="p">,</span> <span class="n">maindim</span>
 
     <span class="k">def</span> <span class="nf">_get_info</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">shape</span><span class="p">,</span> <span class="n">maindim</span><span class="p">,</span> <span class="n">itermode</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Return various info needed for evaluating the computation loop.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Return various info needed for evaluating the computation loop.&quot;&quot;&quot;</span>
 
         <span class="c1"># Compute the shape of the resulting container having</span>
         <span class="c1"># in account new possible values of start, stop and step in</span>
@@ -622,7 +627,7 @@ <h1>Source code for tables.expression</h1><div class="highlight"><pre>
             <span class="k">return</span> <span class="p">(</span><span class="n">i_nrows</span><span class="p">,</span> <span class="n">slice_pos</span><span class="p">,</span> <span class="n">start</span><span class="p">,</span> <span class="n">stop</span><span class="p">,</span> <span class="n">step</span><span class="p">,</span> <span class="n">nrowsinbuf</span><span class="p">)</span>
 
 <div class="viewcode-block" id="Expr.eval"><a class="viewcode-back" href="../../usersguide/libref/expr_class.html#tables.Expr.eval">[docs]</a>    <span class="k">def</span> <span class="nf">eval</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Evaluate the expression and return the outcome.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Evaluate the expression and return the outcome.</span>
 
 <span class="sd">        Because of performance reasons, the computation order tries to go along</span>
 <span class="sd">        the common main dimension of all inputs.  If not such a common main</span>
@@ -717,7 +722,7 @@ <h1>Source code for tables.expression</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">out</span></div>
 
 <div class="viewcode-block" id="Expr.__iter__"><a class="viewcode-back" href="../../usersguide/libref/expr_class.html#tables.Expr.__iter__">[docs]</a>    <span class="k">def</span> <span class="fm">__iter__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Iterate over the rows of the outcome of the expression.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Iterate over the rows of the outcome of the expression.</span>
 
 <span class="sd">        This iterator always returns rows as NumPy objects, so a possible out</span>
 <span class="sd">        container specified in :meth:`Expr.set_output` method is ignored here.</span>
diff --git a/_modules/tables/file.html b/_modules/tables/file.html
index aa0a79a..b8c65df 100644
--- a/_modules/tables/file.html
+++ b/_modules/tables/file.html
@@ -3,7 +3,7 @@
 <head>
   <meta charset="utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>tables.file &mdash; PyTables 3.8.1.dev0 documentation</title>
+  <title>tables.file &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/graphviz.css" type="text/css" />
@@ -16,6 +16,7 @@
         <script src="../../_static/underscore.js"></script>
         <script src="../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../_static/doctools.js"></script>
+        <script src="../../_static/sphinx_highlight.js"></script>
     <script src="../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../genindex.html" />
     <link rel="search" title="Search" href="../../search.html" />
@@ -38,15 +39,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../index.html">
-            <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../index.html">
+            
+              <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.8.1.dev0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -78,9 +83,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../index.html">Module code</a> &raquo;</li>
-      <li>tables.file</li>
+      <li><a href="../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../index.html">Module code</a></li>
+      <li class="breadcrumb-item active">tables.file</li>
       <li class="wy-breadcrumbs-aside">
       </li>
   </ul>
@@ -255,7 +260,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="copy_file"><a class="viewcode-back" href="../../usersguide/libref/top_level.html#tables.copy_file">[docs]</a><span class="k">def</span> <span class="nf">copy_file</span><span class="p">(</span><span class="n">srcfilename</span><span class="p">,</span> <span class="n">dstfilename</span><span class="p">,</span> <span class="n">overwrite</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;An easy way of copying one PyTables file to another.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;An easy way of copying one PyTables file to another.</span>
 
 <span class="sd">    This function allows you to copy an existing PyTables file named</span>
 <span class="sd">    srcfilename to another file called dstfilename. The source file</span>
@@ -289,7 +294,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
 
 <div class="viewcode-block" id="open_file"><a class="viewcode-back" href="../../usersguide/libref/top_level.html#tables.open_file">[docs]</a><span class="k">def</span> <span class="nf">open_file</span><span class="p">(</span><span class="n">filename</span><span class="p">,</span> <span class="n">mode</span><span class="o">=</span><span class="s2">&quot;r&quot;</span><span class="p">,</span> <span class="n">title</span><span class="o">=</span><span class="s2">&quot;&quot;</span><span class="p">,</span> <span class="n">root_uep</span><span class="o">=</span><span class="s2">&quot;/&quot;</span><span class="p">,</span> <span class="n">filters</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
               <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Open a PyTables (or generic HDF5) file and return a File object.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Open a PyTables (or generic HDF5) file and return a File object.</span>
 
 <span class="sd">    Parameters</span>
 <span class="sd">    ----------</span>
@@ -512,13 +517,13 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
                 <span class="n">cache</span><span class="p">[</span><span class="n">newkey</span><span class="p">]</span> <span class="o">=</span> <span class="n">node</span>
 
     <span class="k">def</span> <span class="nf">drop_from_cache</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">nodepath</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Remove the node from cache&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Remove the node from cache&quot;&quot;&quot;</span>
 
         <span class="c1"># Remove the node from the cache.</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">cache</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="n">nodepath</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">drop_node</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">node</span><span class="p">,</span> <span class="n">check_unregistered</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Drop the `node`.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Drop the `node`.</span>
 
 <span class="sd">        Remove the node from the cache and, if it has no more references,</span>
 <span class="sd">        close it.</span>
@@ -643,7 +648,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="File"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File">[docs]</a><span class="k">class</span> <span class="nc">File</span><span class="p">(</span><span class="n">hdf5extension</span><span class="o">.</span><span class="n">File</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;The in-memory representation of a PyTables file.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;The in-memory representation of a PyTables file.</span>
 
 <span class="sd">    An instance of this class is returned when a PyTables file is</span>
 <span class="sd">    opened with the :func:`tables.open_file` function. It offers methods</span>
@@ -772,7 +777,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">title</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The title of the root group in the file.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The title of the root group in the file.&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">root</span><span class="o">.</span><span class="n">_v_title</span>
 
     <span class="nd">@title</span><span class="o">.</span><span class="n">setter</span>
@@ -785,7 +790,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">filters</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Default filter properties for the root group</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Default filter properties for the root group</span>
 <span class="sd">        (see :ref:`FiltersClassDescr`).&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">root</span><span class="o">.</span><span class="n">_v_filters</span>
 
@@ -801,10 +806,10 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
                  <span class="n">root_uep</span><span class="o">=</span><span class="s2">&quot;/&quot;</span><span class="p">,</span> <span class="n">filters</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">filename</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">fspath</span><span class="p">(</span><span class="n">filename</span><span class="p">)</span>
-        <span class="sd">&quot;&quot;&quot;The name of the opened file.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The name of the opened file.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">mode</span> <span class="o">=</span> <span class="n">mode</span>
-        <span class="sd">&quot;&quot;&quot;The mode in which the file was opened.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The mode in which the file was opened.&quot;&quot;&quot;</span>
 
         <span class="k">if</span> <span class="n">mode</span> <span class="ow">not</span> <span class="ow">in</span> <span class="p">(</span><span class="s1">&#39;r&#39;</span><span class="p">,</span> <span class="s1">&#39;r+&#39;</span><span class="p">,</span> <span class="s1">&#39;a&#39;</span><span class="p">,</span> <span class="s1">&#39;w&#39;</span><span class="p">):</span>
             <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s2">&quot;invalid mode string ``</span><span class="si">%s</span><span class="s2">``. Allowed modes are: &quot;</span>
@@ -840,7 +845,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
         <span class="k">if</span> <span class="n">new</span><span class="p">:</span>
             <span class="n">_checkfilters</span><span class="p">(</span><span class="n">filters</span><span class="p">)</span>
             <span class="bp">self</span><span class="o">.</span><span class="n">format_version</span> <span class="o">=</span> <span class="n">format_version</span>
-            <span class="sd">&quot;&quot;&quot;The PyTables version number of this file.&quot;&quot;&quot;</span>
+<span class="w">            </span><span class="sd">&quot;&quot;&quot;The PyTables version number of this file.&quot;&quot;&quot;</span>
 
         <span class="c1"># The node manager must be initialized before the root group</span>
         <span class="c1"># initialization but the node_factory attribute is set onl later</span>
@@ -855,7 +860,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
         <span class="c1"># It must be set before opening the root group</span>
         <span class="c1"># to allow some basic access to its attributes.</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">isopen</span> <span class="o">=</span> <span class="mi">1</span>
-        <span class="sd">&quot;&quot;&quot;True if the underlying file os open, False otherwise.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;True if the underlying file os open, False otherwise.&quot;&quot;&quot;</span>
 
         <span class="c1"># Append the name of the file to the global dict of files opened.</span>
         <span class="n">_open_files</span><span class="o">.</span><span class="n">add</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
@@ -865,7 +870,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
 
         <span class="c1"># Get the root group from this file</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">root</span> <span class="o">=</span> <span class="n">root</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">__get_root_group</span><span class="p">(</span><span class="n">root_uep</span><span class="p">,</span> <span class="n">title</span><span class="p">,</span> <span class="n">filters</span><span class="p">)</span>
-        <span class="sd">&quot;&quot;&quot;The *root* of the object tree hierarchy (a Group instance).&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The *root* of the object tree hierarchy (a Group instance).&quot;&quot;&quot;</span>
         <span class="c1"># Complete the creation of the root node</span>
         <span class="c1"># (see the explanation in ``RootGroup.__init__()``.</span>
         <span class="n">root</span><span class="o">.</span><span class="n">_g_post_init_hook</span><span class="p">()</span>
@@ -887,7 +892,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
         <span class="n">ne</span><span class="o">.</span><span class="n">set_vml_num_threads</span><span class="p">(</span><span class="n">params</span><span class="p">[</span><span class="s1">&#39;MAX_NUMEXPR_THREADS&#39;</span><span class="p">])</span>
 
     <span class="k">def</span> <span class="nf">__get_root_group</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">root_uep</span><span class="p">,</span> <span class="n">title</span><span class="p">,</span> <span class="n">filters</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Returns a Group instance which will act as the root group in the</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Returns a Group instance which will act as the root group in the</span>
 <span class="sd">        hierarchical tree.</span>
 
 <span class="sd">        If file is opened in &quot;r&quot;, &quot;r+&quot; or &quot;a&quot; mode, and the file already</span>
@@ -923,7 +928,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">RootGroup</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">root_uep</span><span class="p">,</span> <span class="n">title</span><span class="o">=</span><span class="n">title</span><span class="p">,</span> <span class="n">new</span><span class="o">=</span><span class="n">new</span><span class="p">,</span> <span class="n">filters</span><span class="o">=</span><span class="n">filters</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_get_or_create_path</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">path</span><span class="p">,</span> <span class="n">create</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get the given `path` or create it if `create` is true.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get the given `path` or create it if `create` is true.</span>
 
 <span class="sd">        If `create` is true, `path` *must* be a string path and not a</span>
 <span class="sd">        node, otherwise a `TypeError`will be raised.</span>
@@ -936,7 +941,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
             <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_node</span><span class="p">(</span><span class="n">path</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_create_path</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">path</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create the groups needed for the `path` to exist.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create the groups needed for the `path` to exist.</span>
 
 <span class="sd">        The group associated with the given `path` is returned.</span>
 
@@ -959,7 +964,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
 
 <div class="viewcode-block" id="File.create_group"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.create_group">[docs]</a>    <span class="k">def</span> <span class="nf">create_group</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">where</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">title</span><span class="o">=</span><span class="s2">&quot;&quot;</span><span class="p">,</span> <span class="n">filters</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
                      <span class="n">createparents</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create a new group.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create a new group.</span>
 
 <span class="sd">        Parameters</span>
 <span class="sd">        ----------</span>
@@ -998,7 +1003,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
                      <span class="n">filters</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">expectedrows</span><span class="o">=</span><span class="mi">10_000</span><span class="p">,</span>
                      <span class="n">chunkshape</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">byteorder</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
                      <span class="n">createparents</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">obj</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">track_times</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create a new table with the given name in where location.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create a new table with the given name in where location.</span>
 
 <span class="sd">        Parameters</span>
 <span class="sd">        ----------</span>
@@ -1119,7 +1124,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
 <div class="viewcode-block" id="File.create_array"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.create_array">[docs]</a>    <span class="k">def</span> <span class="nf">create_array</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">where</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">obj</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">title</span><span class="o">=</span><span class="s2">&quot;&quot;</span><span class="p">,</span>
                      <span class="n">byteorder</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">createparents</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span>
                      <span class="n">atom</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">shape</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">track_times</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create a new array.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create a new array.</span>
 
 <span class="sd">        Parameters</span>
 <span class="sd">        ----------</span>
@@ -1216,7 +1221,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
                       <span class="n">filters</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">chunkshape</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
                       <span class="n">byteorder</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">createparents</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">obj</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
                       <span class="n">track_times</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create a new chunked array.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create a new chunked array.</span>
 
 <span class="sd">        Parameters</span>
 <span class="sd">        ----------</span>
@@ -1332,7 +1337,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
                       <span class="n">filters</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">expectedrows</span><span class="o">=</span><span class="mi">1000</span><span class="p">,</span>
                       <span class="n">chunkshape</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">byteorder</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
                       <span class="n">createparents</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">obj</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">track_times</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create a new enlargeable array.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create a new enlargeable array.</span>
 
 <span class="sd">        Parameters</span>
 <span class="sd">        ----------</span>
@@ -1450,7 +1455,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
                        <span class="n">chunkshape</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">byteorder</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
                        <span class="n">createparents</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">obj</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
                        <span class="n">track_times</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create a new variable-length array.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create a new variable-length array.</span>
 
 <span class="sd">        Parameters</span>
 <span class="sd">        ----------</span>
@@ -1558,7 +1563,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">ptobj</span></div>
 
 <div class="viewcode-block" id="File.create_hard_link"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.create_hard_link">[docs]</a>    <span class="k">def</span> <span class="nf">create_hard_link</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">where</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">target</span><span class="p">,</span> <span class="n">createparents</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create a hard link.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create a hard link.</span>
 
 <span class="sd">        Create a hard link to a `target` node with the given `name` in</span>
 <span class="sd">        `where` location.  `target` can be a node object or a path</span>
@@ -1579,7 +1584,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_node</span><span class="p">(</span><span class="n">parentnode</span><span class="p">,</span> <span class="n">name</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="File.create_soft_link"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.create_soft_link">[docs]</a>    <span class="k">def</span> <span class="nf">create_soft_link</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">where</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">target</span><span class="p">,</span> <span class="n">createparents</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create a soft link (aka symbolic link) to a `target` node.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create a soft link (aka symbolic link) to a `target` node.</span>
 
 <span class="sd">        Create a soft link (aka symbolic link) to a `target` nodewith</span>
 <span class="sd">        the given `name` in `where` location.  `target` can be a node</span>
@@ -1607,7 +1612,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">slink</span></div>
 
 <div class="viewcode-block" id="File.create_external_link"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.create_external_link">[docs]</a>    <span class="k">def</span> <span class="nf">create_external_link</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">where</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">target</span><span class="p">,</span> <span class="n">createparents</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create an external link.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create an external link.</span>
 
 <span class="sd">        Create an external link to a *target* node with the given *name*</span>
 <span class="sd">        in *where* location.  *target* can be a node object in another</span>
@@ -1645,7 +1650,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">node</span>
 
 <div class="viewcode-block" id="File.get_node"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.get_node">[docs]</a>    <span class="k">def</span> <span class="nf">get_node</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">where</span><span class="p">,</span> <span class="n">name</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">classname</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get the node under where with the given name.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get the node under where with the given name.</span>
 
 <span class="sd">        Parameters</span>
 <span class="sd">        ----------</span>
@@ -1714,7 +1719,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">node</span></div>
 
 <div class="viewcode-block" id="File.is_visible_node"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.is_visible_node">[docs]</a>    <span class="k">def</span> <span class="nf">is_visible_node</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">path</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Is the node under `path` visible?</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Is the node under `path` visible?</span>
 
 <span class="sd">        If the node does not exist, a NoSuchNodeError is raised.</span>
 
@@ -1724,7 +1729,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">get_node</span><span class="p">(</span><span class="n">path</span><span class="p">)</span><span class="o">.</span><span class="n">_f_isvisible</span><span class="p">()</span></div>
 
 <div class="viewcode-block" id="File.rename_node"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.rename_node">[docs]</a>    <span class="k">def</span> <span class="nf">rename_node</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">where</span><span class="p">,</span> <span class="n">newname</span><span class="p">,</span> <span class="n">name</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">overwrite</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Change the name of the node specified by where and name to newname.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Change the name of the node specified by where and name to newname.</span>
 
 <span class="sd">        Parameters</span>
 <span class="sd">        ----------</span>
@@ -1744,7 +1749,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
 
 <div class="viewcode-block" id="File.move_node"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.move_node">[docs]</a>    <span class="k">def</span> <span class="nf">move_node</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">where</span><span class="p">,</span> <span class="n">newparent</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">newname</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">name</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
                   <span class="n">overwrite</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">createparents</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Move the node specified by where and name to newparent/newname.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Move the node specified by where and name to newparent/newname.</span>
 
 <span class="sd">        Parameters</span>
 <span class="sd">        ----------</span>
@@ -1774,7 +1779,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
 <div class="viewcode-block" id="File.copy_node"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.copy_node">[docs]</a>    <span class="k">def</span> <span class="nf">copy_node</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">where</span><span class="p">,</span> <span class="n">newparent</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">newname</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">name</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
                   <span class="n">overwrite</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">recursive</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">createparents</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span>
                   <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Copy the node specified by where and name to newparent/newname.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Copy the node specified by where and name to newparent/newname.</span>
 
 <span class="sd">        Parameters</span>
 <span class="sd">        ----------</span>
@@ -1834,7 +1839,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
                            <span class="n">overwrite</span><span class="p">,</span> <span class="n">recursive</span><span class="p">,</span> <span class="n">createparents</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="File.remove_node"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.remove_node">[docs]</a>    <span class="k">def</span> <span class="nf">remove_node</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">where</span><span class="p">,</span> <span class="n">name</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">recursive</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Remove the object node *name* under *where* location.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Remove the object node *name* under *where* location.</span>
 
 <span class="sd">        Parameters</span>
 <span class="sd">        ----------</span>
@@ -1854,7 +1859,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
         <span class="n">obj</span><span class="o">.</span><span class="n">_f_remove</span><span class="p">(</span><span class="n">recursive</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="File.get_node_attr"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.get_node_attr">[docs]</a>    <span class="k">def</span> <span class="nf">get_node_attr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">where</span><span class="p">,</span> <span class="n">attrname</span><span class="p">,</span> <span class="n">name</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get a PyTables attribute from the given node.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get a PyTables attribute from the given node.</span>
 
 <span class="sd">        Parameters</span>
 <span class="sd">        ----------</span>
@@ -1871,7 +1876,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">obj</span><span class="o">.</span><span class="n">_f_getattr</span><span class="p">(</span><span class="n">attrname</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="File.set_node_attr"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.set_node_attr">[docs]</a>    <span class="k">def</span> <span class="nf">set_node_attr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">where</span><span class="p">,</span> <span class="n">attrname</span><span class="p">,</span> <span class="n">attrvalue</span><span class="p">,</span> <span class="n">name</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Set a PyTables attribute for the given node.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Set a PyTables attribute for the given node.</span>
 
 <span class="sd">        Parameters</span>
 <span class="sd">        ----------</span>
@@ -1899,7 +1904,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
         <span class="n">obj</span><span class="o">.</span><span class="n">_f_setattr</span><span class="p">(</span><span class="n">attrname</span><span class="p">,</span> <span class="n">attrvalue</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="File.del_node_attr"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.del_node_attr">[docs]</a>    <span class="k">def</span> <span class="nf">del_node_attr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">where</span><span class="p">,</span> <span class="n">attrname</span><span class="p">,</span> <span class="n">name</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Delete a PyTables attribute from the given node.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Delete a PyTables attribute from the given node.</span>
 
 <span class="sd">        Parameters</span>
 <span class="sd">        ----------</span>
@@ -1916,7 +1921,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
         <span class="n">obj</span><span class="o">.</span><span class="n">_f_delattr</span><span class="p">(</span><span class="n">attrname</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="File.copy_node_attrs"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.copy_node_attrs">[docs]</a>    <span class="k">def</span> <span class="nf">copy_node_attrs</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">where</span><span class="p">,</span> <span class="n">dstnode</span><span class="p">,</span> <span class="n">name</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Copy PyTables attributes from one node to another.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Copy PyTables attributes from one node to another.</span>
 
 <span class="sd">        Parameters</span>
 <span class="sd">        ----------</span>
@@ -1936,7 +1941,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
 <div class="viewcode-block" id="File.copy_children"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.copy_children">[docs]</a>    <span class="k">def</span> <span class="nf">copy_children</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">srcgroup</span><span class="p">,</span> <span class="n">dstgroup</span><span class="p">,</span>
                       <span class="n">overwrite</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">recursive</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span>
                       <span class="n">createparents</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Copy the children of a group into another group.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Copy the children of a group into another group.</span>
 
 <span class="sd">        Parameters</span>
 <span class="sd">        ----------</span>
@@ -1967,7 +1972,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
             <span class="n">dstgroup</span><span class="p">,</span> <span class="n">overwrite</span><span class="p">,</span> <span class="n">recursive</span><span class="p">,</span> <span class="n">createparents</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="File.copy_file"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.copy_file">[docs]</a>    <span class="k">def</span> <span class="nf">copy_file</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">dstfilename</span><span class="p">,</span> <span class="n">overwrite</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Copy the contents of this file to dstfilename.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Copy the contents of this file to dstfilename.</span>
 
 <span class="sd">        Parameters</span>
 <span class="sd">        ----------</span>
@@ -2041,7 +2046,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
             <span class="n">dstfileh</span><span class="o">.</span><span class="n">close</span><span class="p">()</span></div>
 
 <div class="viewcode-block" id="File.list_nodes"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.list_nodes">[docs]</a>    <span class="k">def</span> <span class="nf">list_nodes</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">where</span><span class="p">,</span> <span class="n">classname</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Return a *list* with children nodes hanging from where.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Return a *list* with children nodes hanging from where.</span>
 
 <span class="sd">        This is a list-returning version of :meth:`File.iter_nodes`.</span>
 
@@ -2053,7 +2058,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">group</span><span class="o">.</span><span class="n">_f_list_nodes</span><span class="p">(</span><span class="n">classname</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="File.iter_nodes"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.iter_nodes">[docs]</a>    <span class="k">def</span> <span class="nf">iter_nodes</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">where</span><span class="p">,</span> <span class="n">classname</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Iterate over children nodes hanging from where.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Iterate over children nodes hanging from where.</span>
 
 <span class="sd">        Parameters</span>
 <span class="sd">        ----------</span>
@@ -2078,7 +2083,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">group</span><span class="o">.</span><span class="n">_f_iter_nodes</span><span class="p">(</span><span class="n">classname</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="File.__contains__"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.__contains__">[docs]</a>    <span class="k">def</span> <span class="fm">__contains__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">path</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Is there a node with that path?</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Is there a node with that path?</span>
 
 <span class="sd">        Returns True if the file has a node with the given path (a</span>
 <span class="sd">        string), False otherwise.</span>
@@ -2093,7 +2098,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
             <span class="k">return</span> <span class="kc">True</span></div>
 
 <div class="viewcode-block" id="File.__iter__"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.__iter__">[docs]</a>    <span class="k">def</span> <span class="fm">__iter__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Recursively iterate over the nodes in the tree.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Recursively iterate over the nodes in the tree.</span>
 
 <span class="sd">        This is equivalent to calling :meth:`File.walk_nodes` with no</span>
 <span class="sd">        arguments.</span>
@@ -2114,7 +2119,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">walk_nodes</span><span class="p">(</span><span class="s1">&#39;/&#39;</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="File.walk_nodes"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.walk_nodes">[docs]</a>    <span class="k">def</span> <span class="nf">walk_nodes</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">where</span><span class="o">=</span><span class="s2">&quot;/&quot;</span><span class="p">,</span> <span class="n">classname</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Recursively iterate over nodes hanging from where.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Recursively iterate over nodes hanging from where.</span>
 
 <span class="sd">        Parameters</span>
 <span class="sd">        ----------</span>
@@ -2158,7 +2163,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
                 <span class="k">yield from</span> <span class="bp">self</span><span class="o">.</span><span class="n">iter_nodes</span><span class="p">(</span><span class="n">group</span><span class="p">,</span> <span class="n">classname</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="File.walk_groups"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.walk_groups">[docs]</a>    <span class="k">def</span> <span class="nf">walk_groups</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">where</span><span class="o">=</span><span class="s2">&quot;/&quot;</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Recursively iterate over groups (not leaves) hanging from where.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Recursively iterate over groups (not leaves) hanging from where.</span>
 
 <span class="sd">        The where group itself is listed first (preorder), then each of its</span>
 <span class="sd">        child groups (following an alphanumerical order) is also traversed,</span>
@@ -2175,7 +2180,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">group</span><span class="o">.</span><span class="n">_f_walk_groups</span><span class="p">()</span></div>
 
     <span class="k">def</span> <span class="nf">_check_open</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Check the state of the file.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Check the state of the file.</span>
 
 <span class="sd">        If the file is closed, a `ClosedFileError` is raised.</span>
 
@@ -2185,12 +2190,12 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
             <span class="k">raise</span> <span class="n">ClosedFileError</span><span class="p">(</span><span class="s2">&quot;the file object is closed&quot;</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_iswritable</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Is this file writable?&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Is this file writable?&quot;&quot;&quot;</span>
 
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">mode</span> <span class="ow">in</span> <span class="p">(</span><span class="s1">&#39;w&#39;</span><span class="p">,</span> <span class="s1">&#39;a&#39;</span><span class="p">,</span> <span class="s1">&#39;r+&#39;</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_check_writable</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Check whether the file is writable.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Check whether the file is writable.</span>
 
 <span class="sd">        If the file is not writable, a `FileModeError` is raised.</span>
 
@@ -2205,7 +2210,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
             <span class="k">raise</span> <span class="ne">TypeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;node ``</span><span class="si">{</span><span class="n">node</span><span class="o">.</span><span class="n">_v_pathname</span><span class="si">}</span><span class="s2">`` is not a group&quot;</span><span class="p">)</span>
 
 <div class="viewcode-block" id="File.is_undo_enabled"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.is_undo_enabled">[docs]</a>    <span class="k">def</span> <span class="nf">is_undo_enabled</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Is the Undo/Redo mechanism enabled?</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Is the Undo/Redo mechanism enabled?</span>
 
 <span class="sd">        Returns True if the Undo/Redo mechanism has been enabled for</span>
 <span class="sd">        this file, False otherwise. Please note that this mechanism is</span>
@@ -2240,7 +2245,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
             <span class="s2">&quot;Mark number </span><span class="si">%d</span><span class="s2">&quot;</span> <span class="o">%</span> <span class="n">mid</span><span class="p">,</span> <span class="n">new</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
 
 <div class="viewcode-block" id="File.enable_undo"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.enable_undo">[docs]</a>    <span class="k">def</span> <span class="nf">enable_undo</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">filters</span><span class="o">=</span><span class="n">Filters</span><span class="p">(</span><span class="n">complevel</span><span class="o">=</span><span class="mi">1</span><span class="p">)):</span>
-        <span class="sd">&quot;&quot;&quot;Enable the Undo/Redo mechanism.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Enable the Undo/Redo mechanism.</span>
 
 <span class="sd">        This operation prepares the database for undoing and redoing</span>
 <span class="sd">        modifications in the node hierarchy. This</span>
@@ -2335,7 +2340,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">_undoEnabled</span> <span class="o">=</span> <span class="kc">True</span></div>
 
 <div class="viewcode-block" id="File.disable_undo"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.disable_undo">[docs]</a>    <span class="k">def</span> <span class="nf">disable_undo</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Disable the Undo/Redo mechanism.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Disable the Undo/Redo mechanism.</span>
 
 <span class="sd">        Disabling the Undo/Redo mechanism leaves the database in the</span>
 <span class="sd">        current state and forgets past and future database states. This</span>
@@ -2370,7 +2375,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">_undoEnabled</span> <span class="o">=</span> <span class="kc">False</span></div>
 
 <div class="viewcode-block" id="File.mark"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.mark">[docs]</a>    <span class="k">def</span> <span class="nf">mark</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Mark the state of the database.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Mark the state of the database.</span>
 
 <span class="sd">        Creates a mark for the current state of the database. A unique (and</span>
 <span class="sd">        immutable) identifier for the mark is returned. An optional name (a</span>
@@ -2413,7 +2418,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_curmark</span></div>
 
     <span class="k">def</span> <span class="nf">_log</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">action</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Log an action.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Log an action.</span>
 
 <span class="sd">        The `action` must be an all-uppercase string identifying it.</span>
 <span class="sd">        Arguments must also be strings.</span>
@@ -2470,7 +2475,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">_curaction</span> <span class="o">+=</span> <span class="mi">1</span>
 
     <span class="k">def</span> <span class="nf">_get_mark_id</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">mark</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get an integer markid from a mark sequence number or name.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get an integer markid from a mark sequence number or name.&quot;&quot;&quot;</span>
 
         <span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">mark</span><span class="p">,</span> <span class="nb">int</span><span class="p">):</span>
             <span class="n">markid</span> <span class="o">=</span> <span class="n">mark</span>
@@ -2488,7 +2493,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">markid</span>
 
     <span class="k">def</span> <span class="nf">_get_final_action</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">markid</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get the action to go.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get the action to go.</span>
 
 <span class="sd">        It does not touch the self private attributes</span>
 
@@ -2506,7 +2511,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_seqmarkers</span><span class="p">[</span><span class="n">markid</span><span class="p">]</span>
 
     <span class="k">def</span> <span class="nf">_doundo</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">finalaction</span><span class="p">,</span> <span class="n">direction</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Undo/Redo actions up to final action in the specificed direction.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Undo/Redo actions up to final action in the specificed direction.&quot;&quot;&quot;</span>
 
         <span class="k">if</span> <span class="n">direction</span> <span class="o">&lt;</span> <span class="mi">0</span><span class="p">:</span>
             <span class="n">actionlog</span> <span class="o">=</span> \
@@ -2555,7 +2560,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
             <span class="bp">self</span><span class="o">.</span><span class="n">_curaction</span> <span class="o">+=</span> <span class="n">direction</span>
 
 <div class="viewcode-block" id="File.undo"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.undo">[docs]</a>    <span class="k">def</span> <span class="nf">undo</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">mark</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Go to a past state of the database.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Go to a past state of the database.</span>
 
 <span class="sd">        Returns the database to the state associated with the specified mark.</span>
 <span class="sd">        Both the identifier of a mark and its name can be used. If the mark is</span>
@@ -2601,7 +2606,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
 <span class="c1">#               (self._curaction, self._curmark))</span>
 
 <div class="viewcode-block" id="File.redo"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.redo">[docs]</a>    <span class="k">def</span> <span class="nf">redo</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">mark</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Go to a future state of the database.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Go to a future state of the database.</span>
 
 <span class="sd">        Returns the database to the state associated with the specified</span>
 <span class="sd">        mark.  Both the identifier of a mark and its name can be used.</span>
@@ -2651,7 +2656,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
 <span class="c1">#               (self._curaction, self._curmark))</span>
 
 <div class="viewcode-block" id="File.goto"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.goto">[docs]</a>    <span class="k">def</span> <span class="nf">goto</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">mark</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Go to a specific mark of the database.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Go to a specific mark of the database.</span>
 
 <span class="sd">        Returns the database to the state associated with the specified mark.</span>
 <span class="sd">        Both the identifier of a mark and its name can be used.</span>
@@ -2675,7 +2680,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
             <span class="bp">self</span><span class="o">.</span><span class="n">redo</span><span class="p">(</span><span class="n">mark</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="File.get_current_mark"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.get_current_mark">[docs]</a>    <span class="k">def</span> <span class="nf">get_current_mark</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get the identifier of the current mark.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get the identifier of the current mark.</span>
 
 <span class="sd">        Returns the identifier of the current mark. This can be used</span>
 <span class="sd">        to know the state of a database after an application crash, or to</span>
@@ -2693,7 +2698,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_curmark</span></div>
 
     <span class="k">def</span> <span class="nf">_shadow_name</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Compute and return a shadow name.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Compute and return a shadow name.</span>
 
 <span class="sd">        Computes the current shadow name according to the current</span>
 <span class="sd">        transaction, mark and action.  It returns a tuple with the</span>
@@ -2708,7 +2713,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="p">(</span><span class="n">parent</span><span class="p">,</span> <span class="n">name</span><span class="p">)</span>
 
 <div class="viewcode-block" id="File.flush"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.flush">[docs]</a>    <span class="k">def</span> <span class="nf">flush</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Flush all the alive leaves in the object tree.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Flush all the alive leaves in the object tree.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_check_open</span><span class="p">()</span>
 
@@ -2717,7 +2722,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">_flush_file</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>  <span class="c1"># 0 means local scope, 1 global (virtual) scope</span></div>
 
 <div class="viewcode-block" id="File.close"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.close">[docs]</a>    <span class="k">def</span> <span class="nf">close</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Flush all the alive leaves in object tree and close the file.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Flush all the alive leaves in object tree and close the file.&quot;&quot;&quot;</span>
 
         <span class="c1"># If the file is already closed, return immediately</span>
         <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">isopen</span><span class="p">:</span>
@@ -2769,18 +2774,18 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
         <span class="n">_open_files</span><span class="o">.</span><span class="n">remove</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="File.__enter__"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.__enter__">[docs]</a>    <span class="k">def</span> <span class="fm">__enter__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Enter a context and return the same file.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Enter a context and return the same file.&quot;&quot;&quot;</span>
 
         <span class="k">return</span> <span class="bp">self</span></div>
 
 <div class="viewcode-block" id="File.__exit__"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.__exit__">[docs]</a>    <span class="k">def</span> <span class="fm">__exit__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">*</span><span class="n">exc_info</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Exit a context and close the file.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Exit a context and close the file.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">close</span><span class="p">()</span>
         <span class="k">return</span> <span class="kc">False</span>  <span class="c1"># do not hide exceptions</span></div>
 
 <div class="viewcode-block" id="File.__str__"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.__str__">[docs]</a>    <span class="k">def</span> <span class="fm">__str__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Return a short string representation of the object tree.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Return a short string representation of the object tree.</span>
 
 <span class="sd">        Examples</span>
 <span class="sd">        --------</span>
@@ -2826,7 +2831,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="s1">&#39;</span><span class="se">\n</span><span class="s1">&#39;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">lines</span><span class="p">)</span> <span class="o">+</span> <span class="s1">&#39;</span><span class="se">\n</span><span class="s1">&#39;</span></div>
 
 <div class="viewcode-block" id="File.__repr__"><a class="viewcode-back" href="../../usersguide/libref/file_class.html#tables.File.__repr__">[docs]</a>    <span class="k">def</span> <span class="fm">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Return a detailed string representation of the object tree.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Return a detailed string representation of the object tree.&quot;&quot;&quot;</span>
 
         <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">isopen</span><span class="p">:</span>
             <span class="k">return</span> <span class="s2">&quot;&lt;closed File&gt;&quot;</span>
@@ -2844,7 +2849,7 @@ <h1>Source code for tables.file</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="s1">&#39;</span><span class="se">\n</span><span class="s1">&#39;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">lines</span><span class="p">)</span> <span class="o">+</span> <span class="s1">&#39;</span><span class="se">\n</span><span class="s1">&#39;</span></div>
 
     <span class="k">def</span> <span class="nf">_update_node_locations</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">oldpath</span><span class="p">,</span> <span class="n">newpath</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Update location information of nodes under `oldpath`.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Update location information of nodes under `oldpath`.</span>
 
 <span class="sd">        This only affects *already loaded* nodes.</span>
 
diff --git a/_modules/tables/filters.html b/_modules/tables/filters.html
index de6a755..69d2554 100644
--- a/_modules/tables/filters.html
+++ b/_modules/tables/filters.html
@@ -3,7 +3,7 @@
 <head>
   <meta charset="utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>tables.filters &mdash; PyTables 3.8.1.dev0 documentation</title>
+  <title>tables.filters &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/graphviz.css" type="text/css" />
@@ -16,6 +16,7 @@
         <script src="../../_static/underscore.js"></script>
         <script src="../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../_static/doctools.js"></script>
+        <script src="../../_static/sphinx_highlight.js"></script>
     <script src="../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../genindex.html" />
     <link rel="search" title="Search" href="../../search.html" />
@@ -38,15 +39,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../index.html">
-            <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../index.html">
+            
+              <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.8.1.dev0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -78,9 +83,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../index.html">Module code</a> &raquo;</li>
-      <li>tables.filters</li>
+      <li><a href="../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../index.html">Module code</a></li>
+      <li class="breadcrumb-item active">tables.filters</li>
       <li class="wy-breadcrumbs-aside">
       </li>
   </ul>
@@ -135,7 +140,7 @@ <h1>Source code for tables.filters</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="Filters"><a class="viewcode-back" href="../../usersguide/libref/helper_classes.html#tables.Filters">[docs]</a><span class="k">class</span> <span class="nc">Filters</span><span class="p">:</span>
-    <span class="sd">&quot;&quot;&quot;Container for filter properties.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Container for filter properties.</span>
 
 <span class="sd">    This class is meant to serve as a container that keeps information about</span>
 <span class="sd">    the filter properties associated with the chunked leaves, that is Table,</span>
@@ -258,7 +263,7 @@ <h1>Source code for tables.filters</h1><div class="highlight"><pre>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">shuffle_bitshuffle</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Encode NoShuffle (0), Shuffle (1) and BitShuffle (2) filters.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Encode NoShuffle (0), Shuffle (1) and BitShuffle (2) filters.&quot;&quot;&quot;</span>
         <span class="k">if</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">shuffle</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">bitshuffle</span><span class="p">):</span>
             <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span>
                 <span class="s2">&quot;Shuffle and BitShuffle cannot be active at the same time&quot;</span><span class="p">)</span>
@@ -314,7 +319,7 @@ <h1>Source code for tables.filters</h1><div class="highlight"><pre>
 
     <span class="nd">@classmethod</span>
     <span class="k">def</span> <span class="nf">_unpack</span><span class="p">(</span><span class="bp">cls</span><span class="p">,</span> <span class="n">packed</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create a new `Filters` object from a packed version.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create a new `Filters` object from a packed version.</span>
 
 <span class="sd">        &gt;&gt;&gt; Filters._unpack(0)</span>
 <span class="sd">        Filters(complevel=0, shuffle=False, bitshuffle=False, fletcher32=False, least_significant_digit=None)</span>
@@ -364,7 +369,7 @@ <h1>Source code for tables.filters</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">cls</span><span class="p">(</span><span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_pack</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Pack the `Filters` object into a 64-bit NumPy integer.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Pack the `Filters` object into a 64-bit NumPy integer.&quot;&quot;&quot;</span>
 
         <span class="n">packed</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">int64</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
 
@@ -433,18 +438,18 @@ <h1>Source code for tables.filters</h1><div class="highlight"><pre>
             <span class="n">complevel</span> <span class="o">=</span> <span class="o">-</span><span class="mi">1</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">complevel</span> <span class="o">=</span> <span class="n">complevel</span>
-        <span class="sd">&quot;&quot;&quot;The compression level (0 disables compression).&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The compression level (0 disables compression).&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">complib</span> <span class="o">=</span> <span class="n">complib</span>
-        <span class="sd">&quot;&quot;&quot;The compression filter used (irrelevant when compression is</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The compression filter used (irrelevant when compression is</span>
 <span class="sd">        not enabled).</span>
 <span class="sd">        &quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">shuffle</span> <span class="o">=</span> <span class="n">shuffle</span>
-        <span class="sd">&quot;&quot;&quot;Whether the *Shuffle* filter is active or not.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Whether the *Shuffle* filter is active or not.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">bitshuffle</span> <span class="o">=</span> <span class="n">bitshuffle</span>
-        <span class="sd">&quot;&quot;&quot;Whether the *BitShuffle* filter is active or not.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Whether the *BitShuffle* filter is active or not.&quot;&quot;&quot;</span>
 
         <span class="k">if</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">complib</span> <span class="ow">and</span>
                 <span class="bp">self</span><span class="o">.</span><span class="n">bitshuffle</span> <span class="ow">and</span>
@@ -456,10 +461,10 @@ <h1>Source code for tables.filters</h1><div class="highlight"><pre>
             <span class="bp">self</span><span class="o">.</span><span class="n">shuffle</span> <span class="o">=</span> <span class="kc">False</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">fletcher32</span> <span class="o">=</span> <span class="n">fletcher32</span>
-        <span class="sd">&quot;&quot;&quot;Whether the *Fletcher32* filter is active or not.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Whether the *Fletcher32* filter is active or not.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">least_significant_digit</span> <span class="o">=</span> <span class="n">least_significant_digit</span>
-        <span class="sd">&quot;&quot;&quot;The least significant digit to which data shall be truncated.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The least significant digit to which data shall be truncated.&quot;&quot;&quot;</span>
 
     <span class="k">def</span> <span class="fm">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
         <span class="n">args</span> <span class="o">=</span> <span class="p">[]</span>
@@ -491,7 +496,7 @@ <h1>Source code for tables.filters</h1><div class="highlight"><pre>
     <span class="c1">#                 self.shuffle, self.bitshuffle, self.fletcher32))</span>
 
 <div class="viewcode-block" id="Filters.copy"><a class="viewcode-back" href="../../usersguide/libref/helper_classes.html#tables.Filters.copy">[docs]</a>    <span class="k">def</span> <span class="nf">copy</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">**</span><span class="n">override</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get a copy of the filters, possibly overriding some arguments.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get a copy of the filters, possibly overriding some arguments.</span>
 
 <span class="sd">        Constructor arguments to be overridden must be passed as keyword</span>
 <span class="sd">        arguments.</span>
@@ -528,7 +533,7 @@ <h1>Source code for tables.filters</h1><div class="highlight"><pre>
 
 
 <span class="k">def</span> <span class="nf">_test</span><span class="p">():</span>
-    <span class="sd">&quot;&quot;&quot;Run ``doctest`` on this module.&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Run ``doctest`` on this module.&quot;&quot;&quot;</span>
 
     <span class="kn">import</span> <span class="nn">doctest</span>
     <span class="n">doctest</span><span class="o">.</span><span class="n">testmod</span><span class="p">()</span>
diff --git a/_modules/tables/flavor.html b/_modules/tables/flavor.html
index 0140c32..4f1b8f0 100644
--- a/_modules/tables/flavor.html
+++ b/_modules/tables/flavor.html
@@ -3,7 +3,7 @@
 <head>
   <meta charset="utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>tables.flavor &mdash; PyTables 3.8.1.dev0 documentation</title>
+  <title>tables.flavor &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/graphviz.css" type="text/css" />
@@ -16,6 +16,7 @@
         <script src="../../_static/underscore.js"></script>
         <script src="../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../_static/doctools.js"></script>
+        <script src="../../_static/sphinx_highlight.js"></script>
     <script src="../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../genindex.html" />
     <link rel="search" title="Search" href="../../search.html" />
@@ -38,15 +39,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../index.html">
-            <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../index.html">
+            
+              <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.8.1.dev0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -78,9 +83,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../index.html">Module code</a> &raquo;</li>
-      <li>tables.flavor</li>
+      <li><a href="../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../index.html">Module code</a></li>
+      <li class="breadcrumb-item active">tables.flavor</li>
       <li class="wy-breadcrumbs-aside">
       </li>
   </ul>
@@ -174,7 +179,7 @@ <h1>Source code for tables.flavor</h1><div class="highlight"><pre>
 
 
 <span class="k">def</span> <span class="nf">check_flavor</span><span class="p">(</span><span class="n">flavor</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Raise a ``FlavorError`` if the `flavor` is not valid.&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Raise a ``FlavorError`` if the `flavor` is not valid.&quot;&quot;&quot;</span>
 
     <span class="k">if</span> <span class="n">flavor</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">all_flavors</span><span class="p">:</span>
         <span class="n">available_flavs</span> <span class="o">=</span> <span class="s2">&quot;, &quot;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">flav</span> <span class="k">for</span> <span class="n">flav</span> <span class="ow">in</span> <span class="n">all_flavors</span><span class="p">)</span>
@@ -185,7 +190,7 @@ <h1>Source code for tables.flavor</h1><div class="highlight"><pre>
 
 
 <span class="k">def</span> <span class="nf">array_of_flavor2</span><span class="p">(</span><span class="n">array</span><span class="p">,</span> <span class="n">src_flavor</span><span class="p">,</span> <span class="n">dst_flavor</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Get a version of the given `array` in a different flavor.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Get a version of the given `array` in a different flavor.</span>
 
 <span class="sd">    The input `array` must be of the given `src_flavor`, and the</span>
 <span class="sd">    returned array will be of the indicated `dst_flavor`.  Both</span>
@@ -208,7 +213,7 @@ <h1>Source code for tables.flavor</h1><div class="highlight"><pre>
 
 
 <span class="k">def</span> <span class="nf">flavor_to_flavor</span><span class="p">(</span><span class="n">array</span><span class="p">,</span> <span class="n">src_flavor</span><span class="p">,</span> <span class="n">dst_flavor</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Get a version of the given `array` in a different flavor.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Get a version of the given `array` in a different flavor.</span>
 
 <span class="sd">    The input `array` must be of the given `src_flavor`, and the</span>
 <span class="sd">    returned array will be of the indicated `dst_flavor` (see below</span>
@@ -230,7 +235,7 @@ <h1>Source code for tables.flavor</h1><div class="highlight"><pre>
 
 
 <span class="k">def</span> <span class="nf">internal_to_flavor</span><span class="p">(</span><span class="n">array</span><span class="p">,</span> <span class="n">dst_flavor</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Get a version of the given `array` in a different `dst_flavor`.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Get a version of the given `array` in a different `dst_flavor`.</span>
 
 <span class="sd">    The input `array` must be of the internal flavor, and the returned</span>
 <span class="sd">    array will be of the given `dst_flavor`.  See `flavor_to_flavor()`</span>
@@ -242,7 +247,7 @@ <h1>Source code for tables.flavor</h1><div class="highlight"><pre>
 
 
 <span class="k">def</span> <span class="nf">array_as_internal</span><span class="p">(</span><span class="n">array</span><span class="p">,</span> <span class="n">src_flavor</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Get a version of the given `array` in the internal flavor.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Get a version of the given `array` in the internal flavor.</span>
 
 <span class="sd">    The input `array` must be of the given `src_flavor`, and the</span>
 <span class="sd">    returned array will be of the internal flavor.</span>
@@ -255,7 +260,7 @@ <h1>Source code for tables.flavor</h1><div class="highlight"><pre>
 
 
 <span class="k">def</span> <span class="nf">flavor_of</span><span class="p">(</span><span class="n">array</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Identify the flavor of a given `array`.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Identify the flavor of a given `array`.</span>
 
 <span class="sd">    If the `array` can not be matched with any flavor, a ``TypeError``</span>
 <span class="sd">    is raised.</span>
@@ -273,7 +278,7 @@ <h1>Source code for tables.flavor</h1><div class="highlight"><pre>
 
 
 <span class="k">def</span> <span class="nf">array_of_flavor</span><span class="p">(</span><span class="n">array</span><span class="p">,</span> <span class="n">dst_flavor</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Get a version of the given `array` in a different `dst_flavor`.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Get a version of the given `array` in a different `dst_flavor`.</span>
 
 <span class="sd">    The flavor of the input `array` is guessed, and the returned array</span>
 <span class="sd">    will be of the given `dst_flavor`.</span>
@@ -286,7 +291,7 @@ <h1>Source code for tables.flavor</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="restrict_flavors"><a class="viewcode-back" href="../../usersguide/libref/top_level.html#tables.restrict_flavors">[docs]</a><span class="k">def</span> <span class="nf">restrict_flavors</span><span class="p">(</span><span class="n">keep</span><span class="o">=</span><span class="p">(</span><span class="s1">&#39;python&#39;</span><span class="p">,)):</span>
-    <span class="sd">&quot;&quot;&quot;Disable all flavors except those in keep.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Disable all flavors except those in keep.</span>
 
 <span class="sd">    Providing an empty keep sequence implies disabling all flavors (but the</span>
 <span class="sd">    internal one).  If the sequence is not specified, only optional flavors are</span>
@@ -312,7 +317,7 @@ <h1>Source code for tables.flavor</h1><div class="highlight"><pre>
 
 
 <span class="k">def</span> <span class="nf">_register_aliases</span><span class="p">():</span>
-    <span class="sd">&quot;&quot;&quot;Register aliases of *available* flavors.&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Register aliases of *available* flavors.&quot;&quot;&quot;</span>
 
     <span class="k">for</span> <span class="n">flavor</span> <span class="ow">in</span> <span class="n">all_flavors</span><span class="p">:</span>
         <span class="n">aliases</span> <span class="o">=</span> <span class="nb">eval</span><span class="p">(</span><span class="s1">&#39;_</span><span class="si">%s</span><span class="s1">_aliases&#39;</span> <span class="o">%</span> <span class="n">flavor</span><span class="p">)</span>
@@ -321,20 +326,20 @@ <h1>Source code for tables.flavor</h1><div class="highlight"><pre>
 
 
 <span class="k">def</span> <span class="nf">_register_descriptions</span><span class="p">():</span>
-    <span class="sd">&quot;&quot;&quot;Register descriptions of *available* flavors.&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Register descriptions of *available* flavors.&quot;&quot;&quot;</span>
     <span class="k">for</span> <span class="n">flavor</span> <span class="ow">in</span> <span class="n">all_flavors</span><span class="p">:</span>
         <span class="n">description_map</span><span class="p">[</span><span class="n">flavor</span><span class="p">]</span> <span class="o">=</span> <span class="nb">eval</span><span class="p">(</span><span class="s1">&#39;_</span><span class="si">%s</span><span class="s1">_desc&#39;</span> <span class="o">%</span> <span class="n">flavor</span><span class="p">)</span>
 
 
 <span class="k">def</span> <span class="nf">_register_identifiers</span><span class="p">():</span>
-    <span class="sd">&quot;&quot;&quot;Register identifier functions of *available* flavors.&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Register identifier functions of *available* flavors.&quot;&quot;&quot;</span>
 
     <span class="k">for</span> <span class="n">flavor</span> <span class="ow">in</span> <span class="n">all_flavors</span><span class="p">:</span>
         <span class="n">identifier_map</span><span class="p">[</span><span class="n">flavor</span><span class="p">]</span> <span class="o">=</span> <span class="nb">eval</span><span class="p">(</span><span class="s1">&#39;_is_</span><span class="si">%s</span><span class="s1">&#39;</span> <span class="o">%</span> <span class="n">flavor</span><span class="p">)</span>
 
 
 <span class="k">def</span> <span class="nf">_register_converters</span><span class="p">():</span>
-    <span class="sd">&quot;&quot;&quot;Register converter functions between *available* flavors.&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Register converter functions between *available* flavors.&quot;&quot;&quot;</span>
 
     <span class="k">def</span> <span class="nf">identity</span><span class="p">(</span><span class="n">array</span><span class="p">):</span>
         <span class="k">return</span> <span class="n">array</span>
@@ -355,7 +360,7 @@ <h1>Source code for tables.flavor</h1><div class="highlight"><pre>
 
 
 <span class="k">def</span> <span class="nf">_register_all</span><span class="p">():</span>
-    <span class="sd">&quot;&quot;&quot;Register all *available* flavors.&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Register all *available* flavors.&quot;&quot;&quot;</span>
 
     <span class="n">_register_aliases</span><span class="p">()</span>
     <span class="n">_register_descriptions</span><span class="p">()</span>
@@ -364,7 +369,7 @@ <h1>Source code for tables.flavor</h1><div class="highlight"><pre>
 
 
 <span class="k">def</span> <span class="nf">_deregister_aliases</span><span class="p">(</span><span class="n">flavor</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Deregister aliases of a given `flavor` (no checks).&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Deregister aliases of a given `flavor` (no checks).&quot;&quot;&quot;</span>
 
     <span class="n">rm_aliases</span> <span class="o">=</span> <span class="p">[]</span>
     <span class="k">for</span> <span class="p">(</span><span class="n">an_alias</span><span class="p">,</span> <span class="n">a_flavor</span><span class="p">)</span> <span class="ow">in</span> <span class="n">alias_map</span><span class="o">.</span><span class="n">items</span><span class="p">():</span>
@@ -375,19 +380,19 @@ <h1>Source code for tables.flavor</h1><div class="highlight"><pre>
 
 
 <span class="k">def</span> <span class="nf">_deregister_description</span><span class="p">(</span><span class="n">flavor</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Deregister description of a given `flavor` (no checks).&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Deregister description of a given `flavor` (no checks).&quot;&quot;&quot;</span>
 
     <span class="k">del</span> <span class="n">description_map</span><span class="p">[</span><span class="n">flavor</span><span class="p">]</span>
 
 
 <span class="k">def</span> <span class="nf">_deregister_identifier</span><span class="p">(</span><span class="n">flavor</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Deregister identifier function of a given `flavor` (no checks).&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Deregister identifier function of a given `flavor` (no checks).&quot;&quot;&quot;</span>
 
     <span class="k">del</span> <span class="n">identifier_map</span><span class="p">[</span><span class="n">flavor</span><span class="p">]</span>
 
 
 <span class="k">def</span> <span class="nf">_deregister_converters</span><span class="p">(</span><span class="n">flavor</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Deregister converter functions of a given `flavor` (no checks).&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Deregister converter functions of a given `flavor` (no checks).&quot;&quot;&quot;</span>
 
     <span class="n">rm_flavor_pairs</span> <span class="o">=</span> <span class="p">[]</span>
     <span class="k">for</span> <span class="n">flavor_pair</span> <span class="ow">in</span> <span class="n">converter_map</span><span class="p">:</span>
@@ -398,7 +403,7 @@ <h1>Source code for tables.flavor</h1><div class="highlight"><pre>
 
 
 <span class="k">def</span> <span class="nf">_disable_flavor</span><span class="p">(</span><span class="n">flavor</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Completely disable the given `flavor` (no checks).&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Completely disable the given `flavor` (no checks).&quot;&quot;&quot;</span>
 
     <span class="n">_deregister_aliases</span><span class="p">(</span><span class="n">flavor</span><span class="p">)</span>
     <span class="n">_deregister_description</span><span class="p">(</span><span class="n">flavor</span><span class="p">)</span>
@@ -445,7 +450,7 @@ <h1>Source code for tables.flavor</h1><div class="highlight"><pre>
 
 
 <span class="k">def</span> <span class="nf">_numpy_contiguous</span><span class="p">(</span><span class="n">convfunc</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Decorate `convfunc` to return a *contiguous* NumPy array.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Decorate `convfunc` to return a *contiguous* NumPy array.</span>
 
 <span class="sd">    Note: When arrays are 0-strided, the copy is avoided.  This allows</span>
 <span class="sd">    to use `array` to still carry info about the dtype and shape.</span>
@@ -510,7 +515,7 @@ <h1>Source code for tables.flavor</h1><div class="highlight"><pre>
 
 
 <span class="k">def</span> <span class="nf">_test</span><span class="p">():</span>
-    <span class="sd">&quot;&quot;&quot;Run ``doctest`` on this module.&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Run ``doctest`` on this module.&quot;&quot;&quot;</span>
 
     <span class="kn">import</span> <span class="nn">doctest</span>
     <span class="n">doctest</span><span class="o">.</span><span class="n">testmod</span><span class="p">()</span>
diff --git a/_modules/tables/group.html b/_modules/tables/group.html
index 1bdfa0f..baf6916 100644
--- a/_modules/tables/group.html
+++ b/_modules/tables/group.html
@@ -3,7 +3,7 @@
 <head>
   <meta charset="utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>tables.group &mdash; PyTables 3.8.1.dev0 documentation</title>
+  <title>tables.group &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/graphviz.css" type="text/css" />
@@ -16,6 +16,7 @@
         <script src="../../_static/underscore.js"></script>
         <script src="../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../_static/doctools.js"></script>
+        <script src="../../_static/sphinx_highlight.js"></script>
     <script src="../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../genindex.html" />
     <link rel="search" title="Search" href="../../search.html" />
@@ -38,15 +39,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../index.html">
-            <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../index.html">
+            
+              <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.8.1.dev0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -78,9 +83,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../index.html">Module code</a> &raquo;</li>
-      <li>tables.group</li>
+      <li><a href="../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../index.html">Module code</a></li>
+      <li class="breadcrumb-item active">tables.group</li>
       <li class="wy-breadcrumbs-aside">
       </li>
   </ul>
@@ -121,7 +126,7 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="Group"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Group">[docs]</a><span class="k">class</span> <span class="nc">Group</span><span class="p">(</span><span class="n">hdf5extension</span><span class="o">.</span><span class="n">Group</span><span class="p">,</span> <span class="n">Node</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Basic PyTables grouping structure.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Basic PyTables grouping structure.</span>
 
 <span class="sd">    Instances of this class are grouping structures containing *child*</span>
 <span class="sd">    instances of zero or more groups or leaves, together with</span>
@@ -247,7 +252,7 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
     <span class="c1"># `_v_nchildren` is a direct read-only shorthand</span>
     <span class="c1"># for the number of *visible* children in a group.</span>
     <span class="k">def</span> <span class="nf">_g_getnchildren</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The number of children hanging from this group.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The number of children hanging from this group.&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_v_children</span><span class="p">)</span>
 
     <span class="n">_v_nchildren</span> <span class="o">=</span> <span class="nb">property</span><span class="p">(</span><span class="n">_g_getnchildren</span><span class="p">)</span>
@@ -271,7 +276,7 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
 
     <span class="n">_v_filters</span> <span class="o">=</span> <span class="nb">property</span><span class="p">(</span>
         <span class="n">_g_getfilters</span><span class="p">,</span> <span class="n">_g_setfilters</span><span class="p">,</span> <span class="n">_g_delfilters</span><span class="p">,</span>
-        <span class="sd">&quot;&quot;&quot;Default filter properties for child nodes.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Default filter properties for child nodes.</span>
 
 <span class="sd">        You can (and are encouraged to) use this property to get, set and</span>
 <span class="sd">        delete the FILTERS HDF5 attribute of the group, which stores a Filters</span>
@@ -289,19 +294,19 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
         <span class="c1"># First, set attributes belonging to group objects.</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_version</span> <span class="o">=</span> <span class="n">obversion</span>
-        <span class="sd">&quot;&quot;&quot;The object version of this group.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The object version of this group.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_new</span> <span class="o">=</span> <span class="n">new</span>
-        <span class="sd">&quot;&quot;&quot;Is this the first time the node has been created?&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Is this the first time the node has been created?&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_new_title</span> <span class="o">=</span> <span class="n">title</span>
-        <span class="sd">&quot;&quot;&quot;New title for this node.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;New title for this node.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_new_filters</span> <span class="o">=</span> <span class="n">filters</span>
-        <span class="sd">&quot;&quot;&quot;New default filter properties for child nodes.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;New default filter properties for child nodes.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_max_group_width</span> <span class="o">=</span> <span class="n">parentnode</span><span class="o">.</span><span class="n">_v_file</span><span class="o">.</span><span class="n">params</span><span class="p">[</span><span class="s1">&#39;MAX_GROUP_WIDTH&#39;</span><span class="p">]</span>
-        <span class="sd">&quot;&quot;&quot;Maximum number of children on each group before warning the user.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Maximum number of children on each group before warning the user.</span>
 
 <span class="sd">        .. versionchanged:: 3.0</span>
 <span class="sd">           The *_v_maxGroupWidth* attribute has been renamed into</span>
@@ -359,7 +364,7 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
         <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__del__</span><span class="p">()</span>
 
     <span class="k">def</span> <span class="nf">_g_get_child_group_class</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">childname</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get the class of a not-yet-loaded group child.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get the class of a not-yet-loaded group child.</span>
 
 <span class="sd">        `childname` must be the name of a *group* child.</span>
 
@@ -375,7 +380,7 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
             <span class="k">return</span> <span class="n">Group</span>  <span class="c1"># default group class</span>
 
     <span class="k">def</span> <span class="nf">_g_get_child_leaf_class</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">childname</span><span class="p">,</span> <span class="n">warn</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get the class of a not-yet-loaded leaf child.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get the class of a not-yet-loaded leaf child.</span>
 
 <span class="sd">        `childname` must be the name of a *leaf* child.  If the child</span>
 <span class="sd">        belongs to an unknown kind of leaf, or if its kind can not be</span>
@@ -413,27 +418,27 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
             <span class="k">return</span> <span class="n">class_id_dict</span><span class="p">[</span><span class="n">childCID2</span><span class="p">]</span>  <span class="c1"># look up leaf class</span>
 
     <span class="k">def</span> <span class="nf">_g_add_children_names</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Add children names to this group taking into account their</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Add children names to this group taking into account their</span>
 <span class="sd">        visibility and kind.&quot;&quot;&quot;</span>
 
         <span class="n">mydict</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="vm">__dict__</span>
 
         <span class="c1"># The names of the lazy attributes</span>
         <span class="n">mydict</span><span class="p">[</span><span class="s1">&#39;__members__&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">members</span> <span class="o">=</span> <span class="p">[]</span>
-        <span class="sd">&quot;&quot;&quot;The names of visible children nodes for readline-style completion.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The names of visible children nodes for readline-style completion.</span>
 <span class="sd">        &quot;&quot;&quot;</span>
         <span class="n">mydict</span><span class="p">[</span><span class="s1">&#39;_v_children&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">children</span> <span class="o">=</span> <span class="n">_ChildrenDict</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
-        <span class="sd">&quot;&quot;&quot;The number of children hanging from this group.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The number of children hanging from this group.&quot;&quot;&quot;</span>
         <span class="n">mydict</span><span class="p">[</span><span class="s1">&#39;_v_groups&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">groups</span> <span class="o">=</span> <span class="n">_ChildrenDict</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
-        <span class="sd">&quot;&quot;&quot;Dictionary with all groups hanging from this group.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Dictionary with all groups hanging from this group.&quot;&quot;&quot;</span>
         <span class="n">mydict</span><span class="p">[</span><span class="s1">&#39;_v_leaves&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">leaves</span> <span class="o">=</span> <span class="n">_ChildrenDict</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
-        <span class="sd">&quot;&quot;&quot;Dictionary with all leaves hanging from this group.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Dictionary with all leaves hanging from this group.&quot;&quot;&quot;</span>
         <span class="n">mydict</span><span class="p">[</span><span class="s1">&#39;_v_links&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">links</span> <span class="o">=</span> <span class="n">_ChildrenDict</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
-        <span class="sd">&quot;&quot;&quot;Dictionary with all links hanging from this group.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Dictionary with all links hanging from this group.&quot;&quot;&quot;</span>
         <span class="n">mydict</span><span class="p">[</span><span class="s1">&#39;_v_unknown&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">unknown</span> <span class="o">=</span> <span class="n">_ChildrenDict</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
-        <span class="sd">&quot;&quot;&quot;Dictionary with all unknown nodes hanging from this group.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Dictionary with all unknown nodes hanging from this group.&quot;&quot;&quot;</span>
         <span class="n">mydict</span><span class="p">[</span><span class="s1">&#39;_v_hidden&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">hidden</span> <span class="o">=</span> <span class="n">_ChildrenDict</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
-        <span class="sd">&quot;&quot;&quot;Dictionary with all hidden nodes hanging from this group.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Dictionary with all hidden nodes hanging from this group.&quot;&quot;&quot;</span>
 
         <span class="c1"># Get the names of *all* child groups and leaves.</span>
         <span class="p">(</span><span class="n">group_names</span><span class="p">,</span> <span class="n">leaf_names</span><span class="p">,</span> <span class="n">link_names</span><span class="p">,</span> <span class="n">unknown_names</span><span class="p">)</span> <span class="o">=</span> \
@@ -459,7 +464,7 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
                     <span class="n">hidden</span><span class="p">[</span><span class="n">childname</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span>
 
     <span class="k">def</span> <span class="nf">_g_check_has_child</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Check whether &#39;name&#39; is a children of &#39;self&#39; and return its type.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Check whether &#39;name&#39; is a children of &#39;self&#39; and return its type.&quot;&quot;&quot;</span>
 
         <span class="c1"># Get the HDF5 name matching the PyTables name.</span>
         <span class="n">node_type</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_g_get_objinfo</span><span class="p">(</span><span class="n">name</span><span class="p">)</span>
@@ -470,7 +475,7 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">node_type</span>
 
 <div class="viewcode-block" id="Group.__iter__"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Group.__iter__">[docs]</a>    <span class="k">def</span> <span class="fm">__iter__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Iterate over the child nodes hanging directly from the group.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Iterate over the child nodes hanging directly from the group.</span>
 
 <span class="sd">        This iterator is *not* recursive.</span>
 
@@ -489,7 +494,7 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_f_iter_nodes</span><span class="p">()</span></div>
 
 <div class="viewcode-block" id="Group.__contains__"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Group.__contains__">[docs]</a>    <span class="k">def</span> <span class="fm">__contains__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Is there a child with that `name`?</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Is there a child with that `name`?</span>
 
 <span class="sd">        Returns a true value if the group has a child node (visible or</span>
 <span class="sd">        hidden) with the given `name` (a string), false otherwise.</span>
@@ -504,7 +509,7 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="kc">True</span></div>
 
     <span class="k">def</span> <span class="fm">__getitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">childname</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Return the (visible or hidden) child with that `name` ( a string).</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Return the (visible or hidden) child with that `name` ( a string).</span>
 
 <span class="sd">        Raise IndexError if child not exist.</span>
 <span class="sd">        &quot;&quot;&quot;</span>
@@ -514,7 +519,7 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
             <span class="k">raise</span> <span class="ne">IndexError</span><span class="p">(</span><span class="n">childname</span><span class="p">)</span>
 
 <div class="viewcode-block" id="Group._f_walknodes"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Group._f_walknodes">[docs]</a>    <span class="k">def</span> <span class="nf">_f_walknodes</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">classname</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Iterate over descendant nodes.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Iterate over descendant nodes.</span>
 
 <span class="sd">        This method recursively walks *self* top to bottom (preorder),</span>
 <span class="sd">        iterating over child groups in alphanumerical order, and yielding</span>
@@ -551,7 +556,7 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
                 <span class="k">yield from</span> <span class="n">group</span><span class="o">.</span><span class="n">_f_iter_nodes</span><span class="p">(</span><span class="n">classname</span><span class="p">)</span></div>
 
     <span class="k">def</span> <span class="nf">_g_join</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Helper method to correctly concatenate a name child object with the</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Helper method to correctly concatenate a name child object with the</span>
 <span class="sd">        pathname of this group.&quot;&quot;&quot;</span>
 
         <span class="k">if</span> <span class="n">name</span> <span class="o">==</span> <span class="s2">&quot;/&quot;</span><span class="p">:</span>
@@ -560,7 +565,7 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">join_path</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_v_pathname</span><span class="p">,</span> <span class="n">name</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_g_width_warning</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Issue a :exc:`PerformanceWarning` on too many children.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Issue a :exc:`PerformanceWarning` on too many children.&quot;&quot;&quot;</span>
 
         <span class="n">warnings</span><span class="o">.</span><span class="n">warn</span><span class="p">(</span><span class="s2">&quot;&quot;&quot;</span><span class="se">\</span>
 <span class="s2">group ``</span><span class="si">%s</span><span class="s2">`` is exceeding the recommended maximum number of children (</span><span class="si">%d</span><span class="s2">); </span><span class="se">\</span>
@@ -569,7 +574,7 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
                       <span class="n">PerformanceWarning</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_g_refnode</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">childnode</span><span class="p">,</span> <span class="n">childname</span><span class="p">,</span> <span class="n">validate</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Insert references to a `childnode` via a `childname`.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Insert references to a `childnode` via a `childname`.</span>
 
 <span class="sd">        Checks that the `childname` is valid and does not exist, then</span>
 <span class="sd">        creates references to the given `childnode` by that `childname`.</span>
@@ -627,7 +632,7 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
             <span class="bp">self</span><span class="o">.</span><span class="n">_v_hidden</span><span class="p">[</span><span class="n">childname</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span>  <span class="c1"># insert node</span>
 
     <span class="k">def</span> <span class="nf">_g_unrefnode</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">childname</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Remove references to a node.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Remove references to a node.</span>
 
 <span class="sd">        Removes all references to the named node.</span>
 
@@ -701,7 +706,7 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">new_node</span>
 
     <span class="k">def</span> <span class="nf">_g_copy_children</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">newparent</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Copy child nodes.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Copy child nodes.</span>
 
 <span class="sd">        Copies all nodes descending from this one into the specified</span>
 <span class="sd">        `newparent`.  If the new parent has a child node with the same</span>
@@ -758,7 +763,7 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
                         <span class="n">parentstack</span><span class="o">.</span><span class="n">append</span><span class="p">((</span><span class="n">srcchild</span><span class="p">,</span> <span class="n">dstchild</span><span class="p">))</span>
 
 <div class="viewcode-block" id="Group._f_get_child"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Group._f_get_child">[docs]</a>    <span class="k">def</span> <span class="nf">_f_get_child</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">childname</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get the child called childname of this group.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get the child called childname of this group.</span>
 
 <span class="sd">        If the child exists (be it visible or not), it is returned.  Else, a</span>
 <span class="sd">        NoSuchNodeError is raised.</span>
@@ -777,7 +782,7 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_file</span><span class="o">.</span><span class="n">_get_node</span><span class="p">(</span><span class="n">childpath</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="Group._f_list_nodes"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Group._f_list_nodes">[docs]</a>    <span class="k">def</span> <span class="nf">_f_list_nodes</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">classname</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Return a *list* with children nodes.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Return a *list* with children nodes.</span>
 
 <span class="sd">        This is a list-returning version of :meth:`Group._f_iter_nodes()`.</span>
 
@@ -786,7 +791,7 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="nb">list</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_f_iter_nodes</span><span class="p">(</span><span class="n">classname</span><span class="p">))</span></div>
 
 <div class="viewcode-block" id="Group._f_iter_nodes"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Group._f_iter_nodes">[docs]</a>    <span class="k">def</span> <span class="nf">_f_iter_nodes</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">classname</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Iterate over children nodes.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Iterate over children nodes.</span>
 
 <span class="sd">        Child nodes are yielded alphanumerically sorted by node name.  If the</span>
 <span class="sd">        name of a class derived from Node (see :ref:`NodeClassDescr`) is</span>
@@ -825,7 +830,7 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
                     <span class="k">yield</span> <span class="n">childnode</span></div>
 
 <div class="viewcode-block" id="Group._f_walk_groups"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Group._f_walk_groups">[docs]</a>    <span class="k">def</span> <span class="nf">_f_walk_groups</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Recursively iterate over descendent groups (not leaves).</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Recursively iterate over descendent groups (not leaves).</span>
 
 <span class="sd">        This method starts by yielding *self*, and then it goes on to</span>
 <span class="sd">        recursively iterate over all child groups in alphanumerical order, top</span>
@@ -849,7 +854,7 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
                 <span class="k">yield</span> <span class="n">objgroup</span><span class="o">.</span><span class="n">_v_groups</span><span class="p">[</span><span class="n">groupname</span><span class="p">]</span></div>
 
 <div class="viewcode-block" id="Group.__delattr__"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Group.__delattr__">[docs]</a>    <span class="k">def</span> <span class="fm">__delattr__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Delete a Python attribute called name.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Delete a Python attribute called name.</span>
 
 <span class="sd">        This method only provides a extra warning in case the user</span>
 <span class="sd">        tries to delete a children node using __delattr__.</span>
@@ -871,7 +876,7 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
             <span class="k">raise</span> <span class="n">ae</span><span class="o">.</span><span class="vm">__class__</span><span class="p">(</span><span class="nb">str</span><span class="p">(</span><span class="n">ae</span><span class="p">)</span> <span class="o">+</span> <span class="n">hint</span><span class="p">)</span></div>
 
     <span class="k">def</span> <span class="fm">__dir__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Autocomplete only children named as valid python identifiers.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Autocomplete only children named as valid python identifiers.</span>
 
 <span class="sd">        Only PY3 supports this special method.</span>
 <span class="sd">        &quot;&quot;&quot;</span>
@@ -879,7 +884,7 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__dir__</span><span class="p">()</span> <span class="o">+</span> <span class="n">subnods</span>
 
 <div class="viewcode-block" id="Group.__getattr__"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Group.__getattr__">[docs]</a>    <span class="k">def</span> <span class="fm">__getattr__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get a Python attribute or child node called name.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get a Python attribute or child node called name.</span>
 <span class="sd">        If the node has a child node called name it is returned,</span>
 <span class="sd">        else an AttributeError is raised.</span>
 <span class="sd">        &quot;&quot;&quot;</span>
@@ -890,7 +895,7 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_f_get_child</span><span class="p">(</span><span class="n">name</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="Group.__setattr__"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Group.__setattr__">[docs]</a>    <span class="k">def</span> <span class="fm">__setattr__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Set a Python attribute called name with the given value.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Set a Python attribute called name with the given value.</span>
 
 <span class="sd">        This method stores an *ordinary Python attribute* in the object. It</span>
 <span class="sd">        does *not* store new children nodes under this group; for that, use the</span>
@@ -939,19 +944,19 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
         <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__setattr__</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="n">value</span><span class="p">)</span></div>
 
     <span class="k">def</span> <span class="nf">_f_flush</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Flush this Group.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Flush this Group.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_g_check_open</span><span class="p">()</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_g_flush_group</span><span class="p">()</span>
 
     <span class="k">def</span> <span class="nf">_g_close_descendents</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Close all the *loaded* descendent nodes of this group.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Close all the *loaded* descendent nodes of this group.&quot;&quot;&quot;</span>
 
         <span class="n">node_manager</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_file</span><span class="o">.</span><span class="n">_node_manager</span>
         <span class="n">node_manager</span><span class="o">.</span><span class="n">close_subtree</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_v_pathname</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_g_close</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Close this (open) group.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Close this (open) group.&quot;&quot;&quot;</span>
 
         <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_isopen</span><span class="p">:</span>
             <span class="c1"># hdf5extension operations:</span>
@@ -962,7 +967,7 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
         <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="n">_f_close</span><span class="p">()</span>
 
 <div class="viewcode-block" id="Group._f_close"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Group._f_close">[docs]</a>    <span class="k">def</span> <span class="nf">_f_close</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Close this group and all its descendents.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Close this group and all its descendents.</span>
 
 <span class="sd">        This method has the behavior described in :meth:`Node._f_close`.</span>
 <span class="sd">        It should be noted that this operation closes all the nodes</span>
@@ -992,7 +997,7 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">_g_close</span><span class="p">()</span></div>
 
     <span class="k">def</span> <span class="nf">_g_remove</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">recursive</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">force</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Remove (recursively if needed) the Group.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Remove (recursively if needed) the Group.</span>
 
 <span class="sd">        This version correctly handles both visible and hidden nodes.</span>
 
@@ -1015,7 +1020,7 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
 <div class="viewcode-block" id="Group._f_copy"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Group._f_copy">[docs]</a>    <span class="k">def</span> <span class="nf">_f_copy</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">newparent</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">newname</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
                 <span class="n">overwrite</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">recursive</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">createparents</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span>
                 <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Copy this node and return the new one.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Copy this node and return the new one.</span>
 
 <span class="sd">        This method has the behavior described in :meth:`Node._f_copy`.</span>
 <span class="sd">        In addition, it recognizes the following keyword arguments:</span>
@@ -1050,7 +1055,7 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
 
 <div class="viewcode-block" id="Group._f_copy_children"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Group._f_copy_children">[docs]</a>    <span class="k">def</span> <span class="nf">_f_copy_children</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">dstgroup</span><span class="p">,</span> <span class="n">overwrite</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">recursive</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span>
                          <span class="n">createparents</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Copy the children of this group into another group.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Copy the children of this group into another group.</span>
 
 <span class="sd">        Children hanging directly from this group are copied into dstgroup,</span>
 <span class="sd">        which can be a Group (see :ref:`GroupClassDescr`) object or its</span>
@@ -1127,7 +1132,7 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
                 <span class="n">child</span><span class="o">.</span><span class="n">_f_copy</span><span class="p">(</span><span class="n">dstparent</span><span class="p">,</span> <span class="kc">None</span><span class="p">,</span> <span class="n">overwrite</span><span class="p">,</span> <span class="n">recursive</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="Group.__str__"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Group.__str__">[docs]</a>    <span class="k">def</span> <span class="fm">__str__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Return a short string representation of the group.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Return a short string representation of the group.</span>
 
 <span class="sd">        Examples</span>
 <span class="sd">        --------</span>
@@ -1146,7 +1151,7 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
                 <span class="sa">f</span><span class="s2">&quot;</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">_v_title</span><span class="si">!r}</span><span class="s2">&quot;</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="Group.__repr__"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Group.__repr__">[docs]</a>    <span class="k">def</span> <span class="fm">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Return a detailed string representation of the group.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Return a detailed string representation of the group.</span>
 
 <span class="sd">        Examples</span>
 <span class="sd">        --------</span>
@@ -1215,7 +1220,7 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
         <span class="c1"># self._g_post_init_hook()</span>
 
     <span class="k">def</span> <span class="nf">_g_load_child</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">childname</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Load a child node from disk.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Load a child node from disk.</span>
 
 <span class="sd">        The child node `childname` is loaded from disk and an adequate</span>
 <span class="sd">        `Node` object is created and returned.  If there is no such</span>
@@ -1309,7 +1314,7 @@ <h1>Source code for tables.group</h1><div class="highlight"><pre>
                       <span class="n">PerformanceWarning</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_g_reset</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Empty action storage (nodes and attributes).</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Empty action storage (nodes and attributes).</span>
 
 <span class="sd">        This method empties all action storage kept in this node: nodes</span>
 <span class="sd">        and attributes.</span>
diff --git a/_modules/tables/index.html b/_modules/tables/index.html
index 6d7864d..bcb8d40 100644
--- a/_modules/tables/index.html
+++ b/_modules/tables/index.html
@@ -3,7 +3,7 @@
 <head>
   <meta charset="utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>tables.index &mdash; PyTables 3.8.1.dev0 documentation</title>
+  <title>tables.index &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/graphviz.css" type="text/css" />
@@ -16,6 +16,7 @@
         <script src="../../_static/underscore.js"></script>
         <script src="../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../_static/doctools.js"></script>
+        <script src="../../_static/sphinx_highlight.js"></script>
     <script src="../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../genindex.html" />
     <link rel="search" title="Search" href="../../search.html" />
@@ -38,15 +39,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../index.html">
-            <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../index.html">
+            
+              <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.8.1.dev0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -78,9 +83,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../index.html">Module code</a> &raquo;</li>
-      <li>tables.index</li>
+      <li><a href="../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../index.html">Module code</a></li>
+      <li class="breadcrumb-item active">tables.index</li>
       <li class="wy-breadcrumbs-aside">
       </li>
   </ul>
@@ -179,7 +184,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="Index"><a class="viewcode-back" href="../../usersguide/libref/helper_classes.html#tables.index.Index">[docs]</a><span class="k">class</span> <span class="nc">Index</span><span class="p">(</span><span class="n">NotLoggedMixin</span><span class="p">,</span> <span class="n">Group</span><span class="p">,</span> <span class="n">indexesextension</span><span class="o">.</span><span class="n">Index</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Represents the index of a column in a table.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Represents the index of a column in a table.</span>
 
 <span class="sd">    This class is used to keep the indexing information for columns in a Table</span>
 <span class="sd">    dataset (see :ref:`TableClassDescr`). It is actually a descendant of the</span>
@@ -234,19 +239,19 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">kind</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The kind of this index.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The kind of this index.&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="p">{</span><span class="mi">1</span><span class="p">:</span> <span class="s1">&#39;ultralight&#39;</span><span class="p">,</span> <span class="mi">2</span><span class="p">:</span> <span class="s1">&#39;light&#39;</span><span class="p">,</span>
                 <span class="mi">4</span><span class="p">:</span> <span class="s1">&#39;medium&#39;</span><span class="p">,</span> <span class="mi">8</span><span class="p">:</span> <span class="s1">&#39;full&#39;</span><span class="p">}[</span><span class="bp">self</span><span class="o">.</span><span class="n">indsize</span><span class="p">]</span>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">filters</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Filter properties for this index - see Filters in</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Filter properties for this index - see Filters in</span>
 <span class="sd">        :ref:`FiltersClassDescr`.&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_filters</span>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">dirty</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Whether the index is dirty or not.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Whether the index is dirty or not.</span>
 <span class="sd">        Dirty indexes are out of sync with column data, so they exist but they</span>
 <span class="sd">        are not usable.</span>
 <span class="sd">        &quot;&quot;&quot;</span>
@@ -268,7 +273,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">column</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The Column (see :ref:`ColumnClassDescr`) instance for the indexed</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The Column (see :ref:`ColumnClassDescr`) instance for the indexed</span>
 <span class="sd">        column.&quot;&quot;&quot;</span>
 
         <span class="n">tablepath</span><span class="p">,</span> <span class="n">columnpath</span> <span class="o">=</span> <span class="n">_table_column_pathname_of_index</span><span class="p">(</span>
@@ -279,7 +284,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">table</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Accessor for the `Table` object of this index.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Accessor for the `Table` object of this index.&quot;&quot;&quot;</span>
         <span class="n">tablepath</span><span class="p">,</span> <span class="n">columnpath</span> <span class="o">=</span> <span class="n">_table_column_pathname_of_index</span><span class="p">(</span>
             <span class="bp">self</span><span class="o">.</span><span class="n">_v_pathname</span><span class="p">)</span>
         <span class="n">table</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_file</span><span class="o">.</span><span class="n">_get_node</span><span class="p">(</span><span class="n">tablepath</span><span class="p">)</span>
@@ -287,22 +292,22 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">nblockssuperblock</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The number of blocks in a superblock.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The number of blocks in a superblock.&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">superblocksize</span> <span class="o">//</span> <span class="bp">self</span><span class="o">.</span><span class="n">blocksize</span>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">nslicesblock</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The number of slices in a block.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The number of slices in a block.&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">blocksize</span> <span class="o">//</span> <span class="bp">self</span><span class="o">.</span><span class="n">slicesize</span>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">nchunkslice</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The number of chunks in a slice.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The number of chunks in a slice.&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">slicesize</span> <span class="o">//</span> <span class="bp">self</span><span class="o">.</span><span class="n">chunksize</span>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">nsuperblocks</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The total number of superblocks in index.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The total number of superblocks in index.&quot;&quot;&quot;</span>
         <span class="c1"># Last row should not be considered as a superblock</span>
         <span class="n">nelements</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">nelements</span> <span class="o">-</span> <span class="bp">self</span><span class="o">.</span><span class="n">nelementsILR</span>
         <span class="n">nblocks</span> <span class="o">=</span> <span class="n">nelements</span> <span class="o">//</span> <span class="bp">self</span><span class="o">.</span><span class="n">superblocksize</span>
@@ -312,7 +317,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">nblocks</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The total number of blocks in index.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The total number of blocks in index.&quot;&quot;&quot;</span>
         <span class="c1"># Last row should not be considered as a block</span>
         <span class="n">nelements</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">nelements</span> <span class="o">-</span> <span class="bp">self</span><span class="o">.</span><span class="n">nelementsILR</span>
         <span class="n">nblocks</span> <span class="o">=</span> <span class="n">nelements</span> <span class="o">//</span> <span class="bp">self</span><span class="o">.</span><span class="n">blocksize</span>
@@ -322,34 +327,34 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">nslices</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The number of complete slices in index.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The number of complete slices in index.&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">nelements</span> <span class="o">//</span> <span class="bp">self</span><span class="o">.</span><span class="n">slicesize</span>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">nchunks</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The number of complete chunks in index.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The number of complete chunks in index.&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">nelements</span> <span class="o">//</span> <span class="bp">self</span><span class="o">.</span><span class="n">chunksize</span>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">shape</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The shape of this index (in slices and elements).&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The shape of this index (in slices and elements).&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">nrows</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">slicesize</span><span class="p">)</span>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">temp_required</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Whether a temporary file for indexes is required or not.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Whether a temporary file for indexes is required or not.&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">indsize</span> <span class="o">&gt;</span> <span class="mi">1</span> <span class="ow">and</span>
                 <span class="bp">self</span><span class="o">.</span><span class="n">optlevel</span> <span class="o">&gt;</span> <span class="mi">0</span> <span class="ow">and</span>
                 <span class="bp">self</span><span class="o">.</span><span class="n">table</span><span class="o">.</span><span class="n">nrows</span> <span class="o">&gt;</span> <span class="bp">self</span><span class="o">.</span><span class="n">slicesize</span><span class="p">)</span>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">want_complete_sort</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Whether we should try to build a completely sorted index or not.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Whether we should try to build a completely sorted index or not.&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">indsize</span> <span class="o">==</span> <span class="mi">8</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">optlevel</span> <span class="o">==</span> <span class="mi">9</span>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">is_csi</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Whether the index is completely sorted or not.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Whether the index is completely sorted or not.</span>
 
 <span class="sd">        .. versionchanged:: 3.0</span>
 <span class="sd">           The *is_CSI* property has been renamed into *is_csi*.</span>
@@ -372,13 +377,13 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
 
     <span class="nd">@lazyattr</span>
     <span class="k">def</span> <span class="nf">nrowsinchunk</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The number of rows that fits in a *table* chunk.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The number of rows that fits in a *table* chunk.&quot;&quot;&quot;</span>
 
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">table</span><span class="o">.</span><span class="n">chunkshape</span><span class="p">[</span><span class="mi">0</span><span class="p">]</span>
 
     <span class="nd">@lazyattr</span>
     <span class="k">def</span> <span class="nf">lbucket</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Return the length of a bucket based index type.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Return the length of a bucket based index type.&quot;&quot;&quot;</span>
 
         <span class="c1"># Avoid to set a too large lbucket size (mainly useful for tests)</span>
         <span class="n">lbucket</span> <span class="o">=</span> <span class="nb">min</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">nrowsinchunk</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">chunksize</span><span class="p">)</span>
@@ -412,22 +417,22 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
                  <span class="n">new</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_version</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;The object version of this index.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The object version of this index.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">optlevel</span> <span class="o">=</span> <span class="n">optlevel</span>
-        <span class="sd">&quot;&quot;&quot;The optimization level for this index.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The optimization level for this index.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">tmp_dir</span> <span class="o">=</span> <span class="n">tmp_dir</span>
-        <span class="sd">&quot;&quot;&quot;The directory for the temporary files.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The directory for the temporary files.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">expectedrows</span> <span class="o">=</span> <span class="n">expectedrows</span>
-        <span class="sd">&quot;&quot;&quot;The expected number of items of index arrays.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The expected number of items of index arrays.&quot;&quot;&quot;</span>
         <span class="k">if</span> <span class="n">byteorder</span> <span class="ow">in</span> <span class="p">[</span><span class="s2">&quot;little&quot;</span><span class="p">,</span> <span class="s2">&quot;big&quot;</span><span class="p">]:</span>
             <span class="bp">self</span><span class="o">.</span><span class="n">byteorder</span> <span class="o">=</span> <span class="n">byteorder</span>
         <span class="k">else</span><span class="p">:</span>
             <span class="bp">self</span><span class="o">.</span><span class="n">byteorder</span> <span class="o">=</span> <span class="n">sys</span><span class="o">.</span><span class="n">byteorder</span>
-        <span class="sd">&quot;&quot;&quot;The byteorder of the index datasets.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The byteorder of the index datasets.&quot;&quot;&quot;</span>
         <span class="k">if</span> <span class="n">atom</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
             <span class="bp">self</span><span class="o">.</span><span class="n">dtype</span> <span class="o">=</span> <span class="n">atom</span><span class="o">.</span><span class="n">dtype</span><span class="o">.</span><span class="n">base</span>
             <span class="bp">self</span><span class="o">.</span><span class="n">type</span> <span class="o">=</span> <span class="n">atom</span><span class="o">.</span><span class="n">type</span>
-            <span class="sd">&quot;&quot;&quot;The datatypes to be stored by the sorted index array.&quot;&quot;&quot;</span>
+<span class="w">            </span><span class="sd">&quot;&quot;&quot;The datatypes to be stored by the sorted index array.&quot;&quot;&quot;</span>
             <span class="c1"># ############## Important note ###########################</span>
             <span class="c1"># The datatypes saved as index values are NumPy native</span>
             <span class="c1"># types, so we get rid of type metainfo like Time* or Enum*</span>
@@ -438,37 +443,37 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
                 <span class="s1">&#39;ultralight&#39;</span><span class="p">:</span> <span class="mi">1</span><span class="p">,</span> <span class="s1">&#39;light&#39;</span><span class="p">:</span> <span class="mi">2</span><span class="p">,</span> <span class="s1">&#39;medium&#39;</span><span class="p">:</span> <span class="mi">4</span><span class="p">,</span> <span class="s1">&#39;full&#39;</span><span class="p">:</span> <span class="mi">8</span><span class="p">}[</span><span class="n">kind</span><span class="p">]</span>
             <span class="k">assert</span> <span class="n">indsize</span> <span class="ow">in</span> <span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">4</span><span class="p">,</span> <span class="mi">8</span><span class="p">),</span> <span class="s2">&quot;indsize should be 1, 2, 4 or 8!&quot;</span>
             <span class="bp">self</span><span class="o">.</span><span class="n">indsize</span> <span class="o">=</span> <span class="n">indsize</span>
-            <span class="sd">&quot;&quot;&quot;The itemsize for the indices part of the index.&quot;&quot;&quot;</span>
+<span class="w">            </span><span class="sd">&quot;&quot;&quot;The itemsize for the indices part of the index.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">nrows</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;The total number of slices in the index.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The total number of slices in the index.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">nelements</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;The number of currently indexed rows for this column.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The number of currently indexed rows for this column.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">blocksizes</span> <span class="o">=</span> <span class="n">blocksizes</span>
-        <span class="sd">&quot;&quot;&quot;The four main sizes of the compound blocks (if specified).&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The four main sizes of the compound blocks (if specified).&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">dirtycache</span> <span class="o">=</span> <span class="kc">True</span>
-        <span class="sd">&quot;&quot;&quot;Dirty cache (for ranges, bounds &amp; sorted) flag.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Dirty cache (for ranges, bounds &amp; sorted) flag.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">superblocksize</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Size of the superblock for this index.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Size of the superblock for this index.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">blocksize</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Size of the block for this index.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Size of the block for this index.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">slicesize</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Size of the slice for this index.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Size of the slice for this index.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">chunksize</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Size of the chunk for this index.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Size of the chunk for this index.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">tmpfilename</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Filename for temporary bounds.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Filename for temporary bounds.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">opt_search_types</span> <span class="o">=</span> <span class="n">opt_search_types</span>
-        <span class="sd">&quot;&quot;&quot;The types for which and optimized search has been implemented.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The types for which and optimized search has been implemented.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">noverlaps</span> <span class="o">=</span> <span class="o">-</span><span class="mi">1</span>
-        <span class="sd">&quot;&quot;&quot;The number of overlaps in an index.  0 means a completely</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The number of overlaps in an index.  0 means a completely</span>
 <span class="sd">        sorted index. -1 means that this number is not computed yet.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">tprof</span> <span class="o">=</span> <span class="mi">0</span>
-        <span class="sd">&quot;&quot;&quot;Time counter for benchmarking purposes.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Time counter for benchmarking purposes.&quot;&quot;&quot;</span>
 
         <span class="kn">from</span> <span class="nn">.file</span> <span class="kn">import</span> <span class="n">open_file</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_openFile</span> <span class="o">=</span> <span class="n">open_file</span>
-        <span class="sd">&quot;&quot;&quot;The `open_file()` function, to avoid a circular import.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The `open_file()` function, to avoid a circular import.&quot;&quot;&quot;</span>
 
         <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="n">parentnode</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">title</span><span class="p">,</span> <span class="n">new</span><span class="p">,</span> <span class="n">filters</span><span class="p">)</span>
 
@@ -618,16 +623,16 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
 
         <span class="c1"># The starts and lengths initialization</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">starts</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">empty</span><span class="p">(</span><span class="n">shape</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">nrows</span><span class="p">,</span> <span class="n">dtype</span><span class="o">=</span><span class="n">np</span><span class="o">.</span><span class="n">int32</span><span class="p">)</span>
-        <span class="sd">&quot;&quot;&quot;Where the values fulfiling conditions starts for every slice.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Where the values fulfiling conditions starts for every slice.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">lengths</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">empty</span><span class="p">(</span><span class="n">shape</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">nrows</span><span class="p">,</span> <span class="n">dtype</span><span class="o">=</span><span class="n">np</span><span class="o">.</span><span class="n">int32</span><span class="p">)</span>
-        <span class="sd">&quot;&quot;&quot;Lengths of the values fulfilling conditions for every slice.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Lengths of the values fulfilling conditions for every slice.&quot;&quot;&quot;</span>
 
         <span class="c1"># Finally, create a temporary file for indexes if needed</span>
         <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">temp_required</span><span class="p">:</span>
             <span class="bp">self</span><span class="o">.</span><span class="n">create_temp</span><span class="p">()</span>
 
     <span class="k">def</span> <span class="nf">initial_append</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">xarr</span><span class="p">,</span> <span class="n">nrow</span><span class="p">,</span> <span class="n">reduction</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Compute an initial indices arrays for data to be indexed.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Compute an initial indices arrays for data to be indexed.&quot;&quot;&quot;</span>
 
         <span class="k">if</span> <span class="n">profile</span><span class="p">:</span>
             <span class="n">tref</span> <span class="o">=</span> <span class="n">clock</span><span class="p">()</span>
@@ -706,7 +711,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">larr</span><span class="p">,</span> <span class="n">arr</span><span class="p">,</span> <span class="n">idx</span>
 
     <span class="k">def</span> <span class="nf">final_idx32</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">idx</span><span class="p">,</span> <span class="n">offset</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Perform final operations in 32-bit indices.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Perform final operations in 32-bit indices.&quot;&quot;&quot;</span>
 
         <span class="k">if</span> <span class="n">profile</span><span class="p">:</span>
             <span class="n">tref</span> <span class="o">=</span> <span class="n">clock</span><span class="p">()</span>
@@ -726,7 +731,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">idx</span>
 
     <span class="k">def</span> <span class="nf">append</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">xarr</span><span class="p">,</span> <span class="n">update</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Append the array to the index objects.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Append the array to the index objects.&quot;&quot;&quot;</span>
 
         <span class="k">if</span> <span class="n">profile</span><span class="p">:</span>
             <span class="n">tref</span> <span class="o">=</span> <span class="n">clock</span><span class="p">()</span>
@@ -791,7 +796,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
             <span class="n">show_stats</span><span class="p">(</span><span class="s2">&quot;Exiting append&quot;</span><span class="p">,</span> <span class="n">tref</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">append_last_row</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">xarr</span><span class="p">,</span> <span class="n">update</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Append the array to the last row index objects.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Append the array to the last row index objects.&quot;&quot;&quot;</span>
 
         <span class="k">if</span> <span class="n">profile</span><span class="p">:</span>
             <span class="n">tref</span> <span class="o">=</span> <span class="n">clock</span><span class="p">()</span>
@@ -839,7 +844,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
             <span class="n">show_stats</span><span class="p">(</span><span class="s2">&quot;Exiting appendLR&quot;</span><span class="p">,</span> <span class="n">tref</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">optimize</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">verbose</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Optimize an index so as to allow faster searches.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Optimize an index so as to allow faster searches.</span>
 
 <span class="sd">        verbose</span>
 <span class="sd">            If True, messages about the progress of the</span>
@@ -914,7 +919,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
         <span class="k">return</span>
 
     <span class="k">def</span> <span class="nf">do_complete_sort</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Bring an already optimized index into a complete sorted state.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Bring an already optimized index into a complete sorted state.&quot;&quot;&quot;</span>
 
         <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">verbose</span><span class="p">:</span>
             <span class="n">t1</span> <span class="o">=</span> <span class="n">clock</span><span class="p">()</span>
@@ -1023,10 +1028,10 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
         <span class="c1"># in verbose mode!).</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">compute_overlaps</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">tmp</span><span class="p">,</span> <span class="s2">&quot;do_complete_sort()&quot;</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">verbose</span><span class="p">)</span>
         <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">verbose</span><span class="p">:</span>
-            <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;time: </span><span class="si">{</span><span class="n">clock</span><span class="p">()</span> <span class="o">-</span> <span class="n">t1</span><span class="si">:</span><span class="s2">.4f</span><span class="si">}</span><span class="s2">. clock: </span><span class="si">{</span><span class="n">cpuclock</span><span class="p">()</span> <span class="o">-</span> <span class="n">c1</span><span class="si">:</span><span class="s2">.4f</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">)</span>
+            <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;time: </span><span class="si">{</span><span class="n">clock</span><span class="p">()</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="n">t1</span><span class="si">:</span><span class="s2">.4f</span><span class="si">}</span><span class="s2">. clock: </span><span class="si">{</span><span class="n">cpuclock</span><span class="p">()</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="n">c1</span><span class="si">:</span><span class="s2">.4f</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">swap</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">what</span><span class="p">,</span> <span class="n">mode</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Swap chunks or slices using a certain bounds reference.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Swap chunks or slices using a certain bounds reference.&quot;&quot;&quot;</span>
 
         <span class="c1"># Thresholds for avoiding continuing the optimization</span>
         <span class="c1"># thnover = 4 * self.slicesize  # minimum number of overlapping</span>
@@ -1050,7 +1055,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
             <span class="bp">self</span><span class="o">.</span><span class="n">tmp</span><span class="p">,</span> <span class="n">message</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">verbose</span><span class="p">)</span>
         <span class="n">rmult</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">mult</span><span class="o">.</span><span class="n">nonzero</span><span class="p">()[</span><span class="mi">0</span><span class="p">])</span> <span class="o">/</span> <span class="nb">len</span><span class="p">(</span><span class="n">mult</span><span class="p">)</span>
         <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">verbose</span><span class="p">:</span>
-            <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;time: </span><span class="si">{</span><span class="n">clock</span><span class="p">()</span> <span class="o">-</span> <span class="n">t1</span><span class="si">:</span><span class="s2">.4f</span><span class="si">}</span><span class="s2">. clock: </span><span class="si">{</span><span class="n">cpuclock</span><span class="p">()</span> <span class="o">-</span> <span class="n">c1</span><span class="si">:</span><span class="s2">.4f</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">)</span>
+            <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;time: </span><span class="si">{</span><span class="n">clock</span><span class="p">()</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="n">t1</span><span class="si">:</span><span class="s2">.4f</span><span class="si">}</span><span class="s2">. clock: </span><span class="si">{</span><span class="n">cpuclock</span><span class="p">()</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="n">c1</span><span class="si">:</span><span class="s2">.4f</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">)</span>
         <span class="c1"># Check that entropy is actually decreasing</span>
         <span class="k">if</span> <span class="n">what</span> <span class="o">==</span> <span class="s2">&quot;chunks&quot;</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">last_tover</span> <span class="o">&gt;</span> <span class="mi">0</span> <span class="ow">and</span> <span class="bp">self</span><span class="o">.</span><span class="n">last_nover</span> <span class="o">&gt;</span> <span class="mi">0</span><span class="p">:</span>
             <span class="n">tover_var</span> <span class="o">=</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">last_tover</span> <span class="o">-</span> <span class="n">tover</span><span class="p">)</span> <span class="o">/</span> <span class="bp">self</span><span class="o">.</span><span class="n">last_tover</span>
@@ -1071,7 +1076,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="kc">False</span>
 
     <span class="k">def</span> <span class="nf">create_temp</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create some temporary objects for slice sorting purposes.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create some temporary objects for slice sorting purposes.&quot;&quot;&quot;</span>
 
         <span class="c1"># The index will be dirty during the index optimization process</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">dirty</span> <span class="o">=</span> <span class="kc">True</span>
@@ -1123,7 +1128,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
                <span class="n">filters</span><span class="p">,</span> <span class="n">chunkshape</span><span class="o">=</span><span class="p">(</span><span class="n">cs</span><span class="p">,))</span>
 
     <span class="k">def</span> <span class="nf">create_temp2</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create some temporary objects for slice sorting purposes.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create some temporary objects for slice sorting purposes.&quot;&quot;&quot;</span>
 
         <span class="c1"># The algorithms for doing the swap can be optimized so that</span>
         <span class="c1"># one should be necessary to create temporaries for keeping just</span>
@@ -1159,7 +1164,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
                <span class="s2">&quot;Median ranges 2&quot;</span><span class="p">,</span> <span class="n">filters</span><span class="p">,</span> <span class="n">chunkshape</span><span class="o">=</span><span class="p">(</span><span class="n">cs</span><span class="p">,))</span>
 
     <span class="k">def</span> <span class="nf">cleanup_temp</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Copy the data and delete the temporaries for sorting purposes.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Copy the data and delete the temporaries for sorting purposes.&quot;&quot;&quot;</span>
 
         <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">verbose</span><span class="p">:</span>
             <span class="nb">print</span><span class="p">(</span><span class="s2">&quot;Copying temporary data...&quot;</span><span class="p">)</span>
@@ -1222,7 +1227,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
 
     <span class="k">def</span> <span class="nf">get_neworder</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">neworder</span><span class="p">,</span> <span class="n">src_disk</span><span class="p">,</span> <span class="n">tmp_disk</span><span class="p">,</span>
                      <span class="n">lastrow</span><span class="p">,</span> <span class="n">nslices</span><span class="p">,</span> <span class="n">offset</span><span class="p">,</span> <span class="n">dtype</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get sorted &amp; indices values in new order.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get sorted &amp; indices values in new order.&quot;&quot;&quot;</span>
 
         <span class="n">cs</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">chunksize</span>
         <span class="n">ncs</span> <span class="o">=</span> <span class="n">ncs2</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">nchunkslice</span>
@@ -1258,7 +1263,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
                 <span class="n">tmp_disk</span><span class="p">[</span><span class="n">ns</span><span class="p">]</span> <span class="o">=</span> <span class="n">tmp</span>
 
     <span class="k">def</span> <span class="nf">swap_chunks</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">mode</span><span class="o">=</span><span class="s2">&quot;median&quot;</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Swap &amp; reorder the different chunks in a block.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Swap &amp; reorder the different chunks in a block.&quot;&quot;&quot;</span>
 
         <span class="n">boundsnames</span> <span class="o">=</span> <span class="p">{</span>
             <span class="s1">&#39;start&#39;</span><span class="p">:</span> <span class="s1">&#39;abounds&#39;</span><span class="p">,</span> <span class="s1">&#39;stop&#39;</span><span class="p">:</span> <span class="s1">&#39;zbounds&#39;</span><span class="p">,</span> <span class="s1">&#39;median&#39;</span><span class="p">:</span> <span class="s1">&#39;mbounds&#39;</span><span class="p">}</span>
@@ -1303,7 +1308,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">reorder_slices</span><span class="p">(</span><span class="n">tmp</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">read_slice</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">where</span><span class="p">,</span> <span class="n">nslice</span><span class="p">,</span> <span class="n">buffer</span><span class="p">,</span> <span class="n">start</span><span class="o">=</span><span class="mi">0</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Read a slice from the `where` dataset and put it in `buffer`.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Read a slice from the `where` dataset and put it in `buffer`.&quot;&quot;&quot;</span>
 
         <span class="c1"># Create the buffers for specifying the coordinates</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">startl</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">array</span><span class="p">([</span><span class="n">nslice</span><span class="p">,</span> <span class="n">start</span><span class="p">],</span> <span class="n">np</span><span class="o">.</span><span class="n">uint64</span><span class="p">)</span>
@@ -1312,7 +1317,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
         <span class="n">where</span><span class="o">.</span><span class="n">_g_read_slice</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">startl</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">stopl</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">stepl</span><span class="p">,</span> <span class="n">buffer</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">write_slice</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">where</span><span class="p">,</span> <span class="n">nslice</span><span class="p">,</span> <span class="n">buffer</span><span class="p">,</span> <span class="n">start</span><span class="o">=</span><span class="mi">0</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Write a `slice` to the `where` dataset with the `buffer` data.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Write a `slice` to the `where` dataset with the `buffer` data.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">startl</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">array</span><span class="p">([</span><span class="n">nslice</span><span class="p">,</span> <span class="n">start</span><span class="p">],</span> <span class="n">np</span><span class="o">.</span><span class="n">uint64</span><span class="p">)</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">stopl</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">array</span><span class="p">([</span><span class="n">nslice</span> <span class="o">+</span> <span class="mi">1</span><span class="p">,</span> <span class="n">start</span> <span class="o">+</span> <span class="n">buffer</span><span class="o">.</span><span class="n">size</span><span class="p">],</span> <span class="n">np</span><span class="o">.</span><span class="n">uint64</span><span class="p">)</span>
@@ -1322,7 +1327,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
 
     <span class="c1"># Read version for LastRow</span>
     <span class="k">def</span> <span class="nf">read_slice_lr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">where</span><span class="p">,</span> <span class="n">buffer</span><span class="p">,</span> <span class="n">start</span><span class="o">=</span><span class="mi">0</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Read a slice from the `where` dataset and put it in `buffer`.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Read a slice from the `where` dataset and put it in `buffer`.&quot;&quot;&quot;</span>
 
         <span class="n">startl</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">array</span><span class="p">([</span><span class="n">start</span><span class="p">],</span> <span class="n">dtype</span><span class="o">=</span><span class="n">np</span><span class="o">.</span><span class="n">uint64</span><span class="p">)</span>
         <span class="n">stopl</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">array</span><span class="p">([</span><span class="n">start</span> <span class="o">+</span> <span class="n">buffer</span><span class="o">.</span><span class="n">size</span><span class="p">],</span> <span class="n">dtype</span><span class="o">=</span><span class="n">np</span><span class="o">.</span><span class="n">uint64</span><span class="p">)</span>
@@ -1331,7 +1336,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
 
     <span class="c1"># Write version for LastRow</span>
     <span class="k">def</span> <span class="nf">write_sliceLR</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">where</span><span class="p">,</span> <span class="n">buffer</span><span class="p">,</span> <span class="n">start</span><span class="o">=</span><span class="mi">0</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Write a slice from the `where` dataset with the `buffer` data.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Write a slice from the `where` dataset with the `buffer` data.&quot;&quot;&quot;</span>
 
         <span class="n">startl</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">array</span><span class="p">([</span><span class="n">start</span><span class="p">],</span> <span class="n">dtype</span><span class="o">=</span><span class="n">np</span><span class="o">.</span><span class="n">uint64</span><span class="p">)</span>
         <span class="n">countl</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">array</span><span class="p">([</span><span class="n">start</span> <span class="o">+</span> <span class="n">buffer</span><span class="o">.</span><span class="n">size</span><span class="p">],</span> <span class="n">dtype</span><span class="o">=</span><span class="n">np</span><span class="o">.</span><span class="n">uint64</span><span class="p">)</span>
@@ -1340,7 +1345,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
 
     <span class="k">def</span> <span class="nf">reorder_slice</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">nslice</span><span class="p">,</span> <span class="nb">sorted</span><span class="p">,</span> <span class="n">indices</span><span class="p">,</span> <span class="n">ssorted</span><span class="p">,</span> <span class="n">sindices</span><span class="p">,</span>
                       <span class="n">tmp_sorted</span><span class="p">,</span> <span class="n">tmp_indices</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Copy &amp; reorder the slice in source to final destination.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Copy &amp; reorder the slice in source to final destination.&quot;&quot;&quot;</span>
 
         <span class="n">ss</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">slicesize</span>
         <span class="c1"># Load the second part in buffers</span>
@@ -1357,7 +1362,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
         <span class="n">sindices</span><span class="p">[:</span><span class="n">ss</span><span class="p">]</span> <span class="o">=</span> <span class="n">sindices</span><span class="p">[</span><span class="n">ss</span><span class="p">:]</span>
 
     <span class="k">def</span> <span class="nf">update_caches</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">nslice</span><span class="p">,</span> <span class="n">ssorted</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Update the caches for faster lookups.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Update the caches for faster lookups.&quot;&quot;&quot;</span>
 
         <span class="n">cs</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">chunksize</span>
         <span class="n">ncs</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">nchunkslice</span>
@@ -1374,7 +1379,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
         <span class="n">tmp</span><span class="o">.</span><span class="n">mranges</span><span class="p">[</span><span class="n">nslice</span><span class="p">]</span> <span class="o">=</span> <span class="n">smedian</span><span class="p">[</span><span class="n">ncs</span> <span class="o">//</span> <span class="mi">2</span><span class="p">]</span>
 
     <span class="k">def</span> <span class="nf">reorder_slices</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">tmp</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Reorder completely the index at slice level.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Reorder completely the index at slice level.</span>
 
 <span class="sd">        This method has to maintain the locality of elements in the</span>
 <span class="sd">        ambit of ``blocks``, i.e. an element of a ``block`` cannot be</span>
@@ -1481,7 +1486,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
                 <span class="bp">self</span><span class="o">.</span><span class="n">update_caches</span><span class="p">(</span><span class="n">nslice</span><span class="p">,</span> <span class="n">ssorted</span><span class="p">[:</span><span class="n">ss</span><span class="p">])</span>
 
     <span class="k">def</span> <span class="nf">swap_slices</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">mode</span><span class="o">=</span><span class="s2">&quot;median&quot;</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Swap slices in a superblock.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Swap slices in a superblock.&quot;&quot;&quot;</span>
 
         <span class="n">tmp</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">tmp</span>
         <span class="nb">sorted</span> <span class="o">=</span> <span class="n">tmp</span><span class="o">.</span><span class="n">sorted</span>
@@ -1555,7 +1560,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
                 <span class="n">tmp</span><span class="o">.</span><span class="n">mbounds</span><span class="p">[</span><span class="n">j</span><span class="p">:</span><span class="n">jn</span><span class="p">]</span> <span class="o">=</span> <span class="n">tmp</span><span class="o">.</span><span class="n">mbounds2</span><span class="p">[</span><span class="n">j</span><span class="p">:</span><span class="n">jn</span><span class="p">]</span>
 
     <span class="k">def</span> <span class="nf">search_item_lt</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">where</span><span class="p">,</span> <span class="n">item</span><span class="p">,</span> <span class="n">nslice</span><span class="p">,</span> <span class="n">limits</span><span class="p">,</span> <span class="n">start</span><span class="o">=</span><span class="mi">0</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Search a single item in a specific sorted slice.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Search a single item in a specific sorted slice.&quot;&quot;&quot;</span>
 
         <span class="c1"># This method will only works under the assumtion that item</span>
         <span class="c1"># *is to be found* in the nslice.</span>
@@ -1589,7 +1594,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">pos</span>
 
     <span class="k">def</span> <span class="nf">compute_overlaps_finegrain</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">where</span><span class="p">,</span> <span class="n">message</span><span class="p">,</span> <span class="n">verbose</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Compute some statistics about overlaping of slices in index.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Compute some statistics about overlaping of slices in index.</span>
 
 <span class="sd">        It returns the following info:</span>
 
@@ -1682,7 +1687,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="p">(</span><span class="n">noverlaps</span><span class="p">,</span> <span class="n">multiplicity</span><span class="p">,</span> <span class="n">toverlap</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">compute_overlaps</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">where</span><span class="p">,</span> <span class="n">message</span><span class="p">,</span> <span class="n">verbose</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Compute some statistics about overlaping of slices in index.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Compute some statistics about overlaping of slices in index.</span>
 
 <span class="sd">        It returns the following info:</span>
 
@@ -1744,7 +1749,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="p">(</span><span class="n">noverlaps</span><span class="p">,</span> <span class="n">multiplicity</span><span class="p">,</span> <span class="n">toverlap</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">read_sorted_indices</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">what</span><span class="p">,</span> <span class="n">start</span><span class="p">,</span> <span class="n">stop</span><span class="p">,</span> <span class="n">step</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Return the sorted or indices values in the specified range.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Return the sorted or indices values in the specified range.&quot;&quot;&quot;</span>
         <span class="p">(</span><span class="n">start</span><span class="p">,</span> <span class="n">stop</span><span class="p">,</span> <span class="n">step</span><span class="p">)</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_process_range</span><span class="p">(</span><span class="n">start</span><span class="p">,</span> <span class="n">stop</span><span class="p">,</span> <span class="n">step</span><span class="p">)</span>
         <span class="k">if</span> <span class="n">start</span> <span class="o">&gt;=</span> <span class="n">stop</span><span class="p">:</span>
             <span class="k">return</span> <span class="n">np</span><span class="o">.</span><span class="n">empty</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">dtype</span><span class="p">)</span>
@@ -1786,7 +1791,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">buffer_</span><span class="p">[::</span><span class="n">step</span><span class="p">]</span>
 
 <div class="viewcode-block" id="Index.read_sorted"><a class="viewcode-back" href="../../usersguide/libref/helper_classes.html#tables.index.Index.read_sorted">[docs]</a>    <span class="k">def</span> <span class="nf">read_sorted</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">start</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">stop</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">step</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Return the sorted values of index in the specified range.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Return the sorted values of index in the specified range.</span>
 
 <span class="sd">        The meaning of the start, stop and step arguments is the same as in</span>
 <span class="sd">        :meth:`Table.read_sorted`.</span>
@@ -1796,7 +1801,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">read_sorted_indices</span><span class="p">(</span><span class="s1">&#39;sorted&#39;</span><span class="p">,</span> <span class="n">start</span><span class="p">,</span> <span class="n">stop</span><span class="p">,</span> <span class="n">step</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="Index.read_indices"><a class="viewcode-back" href="../../usersguide/libref/helper_classes.html#tables.index.Index.read_indices">[docs]</a>    <span class="k">def</span> <span class="nf">read_indices</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">start</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">stop</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">step</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Return the indices values of index in the specified range.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Return the indices values of index in the specified range.</span>
 
 <span class="sd">        The meaning of the start, stop and step arguments is the same as in</span>
 <span class="sd">        :meth:`Table.read_sorted`.</span>
@@ -1806,7 +1811,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">read_sorted_indices</span><span class="p">(</span><span class="s1">&#39;indices&#39;</span><span class="p">,</span> <span class="n">start</span><span class="p">,</span> <span class="n">stop</span><span class="p">,</span> <span class="n">step</span><span class="p">)</span></div>
 
     <span class="k">def</span> <span class="nf">_process_range</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">start</span><span class="p">,</span> <span class="n">stop</span><span class="p">,</span> <span class="n">step</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get a range specifc for the index usage.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get a range specifc for the index usage.&quot;&quot;&quot;</span>
 
         <span class="k">if</span> <span class="n">start</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> <span class="ow">and</span> <span class="n">stop</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
             <span class="c1"># Special case for the behaviour of PyTables iterators</span>
@@ -1826,7 +1831,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="p">(</span><span class="n">start</span><span class="p">,</span> <span class="n">stop</span><span class="p">,</span> <span class="n">step</span><span class="p">)</span>
 
 <div class="viewcode-block" id="Index.__getitem__"><a class="viewcode-back" href="../../usersguide/libref/helper_classes.html#tables.index.Index.__getitem__">[docs]</a>    <span class="k">def</span> <span class="fm">__getitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Return the indices values of index in the specified range.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Return the indices values of index in the specified range.</span>
 
 <span class="sd">        If key argument is an integer, the corresponding index is returned.  If</span>
 <span class="sd">        key is a slice, the range of indices determined by it is returned.  A</span>
@@ -1851,7 +1856,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">nelements</span>
 
     <span class="k">def</span> <span class="nf">restorecache</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Clean the limits cache and resize starts and lengths arrays&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Clean the limits cache and resize starts and lengths arrays&quot;&quot;&quot;</span>
 
         <span class="n">params</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_file</span><span class="o">.</span><span class="n">params</span>
         <span class="c1"># The sorted IndexArray is absolutely required to be in memory</span>
@@ -1866,16 +1871,16 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">sorted</span><span class="o">.</span><span class="n">boundscache</span> <span class="o">=</span> <span class="n">ObjectCache</span><span class="p">(</span><span class="n">params</span><span class="p">[</span><span class="s1">&#39;BOUNDS_MAX_SLOTS&#39;</span><span class="p">],</span>
                                               <span class="n">params</span><span class="p">[</span><span class="s1">&#39;BOUNDS_MAX_SIZE&#39;</span><span class="p">],</span>
                                               <span class="s1">&#39;non-opt types bounds&#39;</span><span class="p">)</span>
-        <span class="sd">&quot;&quot;&quot;A cache for the bounds (2nd hash) data. Only used for</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;A cache for the bounds (2nd hash) data. Only used for</span>
 <span class="sd">        non-optimized types searches.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">limboundscache</span> <span class="o">=</span> <span class="n">ObjectCache</span><span class="p">(</span><span class="n">params</span><span class="p">[</span><span class="s1">&#39;LIMBOUNDS_MAX_SLOTS&#39;</span><span class="p">],</span>
                                           <span class="n">params</span><span class="p">[</span><span class="s1">&#39;LIMBOUNDS_MAX_SIZE&#39;</span><span class="p">],</span>
                                           <span class="s1">&#39;bounding limits&#39;</span><span class="p">)</span>
-        <span class="sd">&quot;&quot;&quot;A cache for bounding limits.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;A cache for bounding limits.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">sortedLRcache</span> <span class="o">=</span> <span class="n">ObjectCache</span><span class="p">(</span><span class="n">params</span><span class="p">[</span><span class="s1">&#39;SORTEDLR_MAX_SLOTS&#39;</span><span class="p">],</span>
                                          <span class="n">params</span><span class="p">[</span><span class="s1">&#39;SORTEDLR_MAX_SIZE&#39;</span><span class="p">],</span>
                                          <span class="s1">&#39;last row chunks&#39;</span><span class="p">)</span>
-        <span class="sd">&quot;&quot;&quot;A cache for the last row chunks. Only used for searches in</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;A cache for the last row chunks. Only used for searches in</span>
 <span class="sd">        the last row, and mainly useful for small indexes.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">starts</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">empty</span><span class="p">(</span><span class="n">shape</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">nrows</span><span class="p">,</span> <span class="n">dtype</span><span class="o">=</span><span class="n">np</span><span class="o">.</span><span class="n">int32</span><span class="p">)</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">lengths</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">empty</span><span class="p">(</span><span class="n">shape</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">nrows</span><span class="p">,</span> <span class="n">dtype</span><span class="o">=</span><span class="n">np</span><span class="o">.</span><span class="n">int32</span><span class="p">)</span>
@@ -1883,7 +1888,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">dirtycache</span> <span class="o">=</span> <span class="kc">False</span>
 
     <span class="k">def</span> <span class="nf">search</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">item</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Do a binary search in this index for an item.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Do a binary search in this index for an item.&quot;&quot;&quot;</span>
 
         <span class="k">if</span> <span class="n">profile</span><span class="p">:</span>
             <span class="n">tref</span> <span class="o">=</span> <span class="n">clock</span><span class="p">()</span>
@@ -1983,7 +1988,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
 
     <span class="c1"># This is an scalar version of search. It works with strings as well.</span>
     <span class="k">def</span> <span class="nf">search_scalar</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">item</span><span class="p">,</span> <span class="nb">sorted</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Do a binary search in this index for an item.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Do a binary search in this index for an item.&quot;&quot;&quot;</span>
 
         <span class="n">tlen</span> <span class="o">=</span> <span class="mi">0</span>
         <span class="c1"># Do the lookup for values fullfilling the conditions</span>
@@ -2065,7 +2070,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="p">(</span><span class="n">start</span><span class="p">,</span> <span class="n">stop</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">get_chunkmap</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Compute a map with the interesting chunks in index.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Compute a map with the interesting chunks in index.&quot;&quot;&quot;</span>
 
         <span class="k">if</span> <span class="n">profile</span><span class="p">:</span>
             <span class="n">tref</span> <span class="o">=</span> <span class="n">clock</span><span class="p">()</span>
@@ -2173,14 +2178,14 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">range_</span>
 
     <span class="k">def</span> <span class="nf">_f_remove</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">recursive</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Remove this Index object.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Remove this Index object.&quot;&quot;&quot;</span>
 
         <span class="c1"># Index removal is always recursive,</span>
         <span class="c1"># no matter what `recursive` says.</span>
         <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="n">_f_remove</span><span class="p">(</span><span class="kc">True</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="fm">__str__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;This provides a more compact representation than __repr__&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;This provides a more compact representation than __repr__&quot;&quot;&quot;</span>
 
         <span class="c1"># The filters</span>
         <span class="n">filters</span> <span class="o">=</span> <span class="p">[]</span>
@@ -2194,26 +2199,26 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
                 <span class="sa">f</span><span class="s2">&quot;</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">kind</span><span class="si">}{</span><span class="s1">&#39;, &#39;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">filters</span><span class="p">)</span><span class="si">}</span><span class="s2">).is_csi=</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">is_csi</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="fm">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;This provides more metainfo than standard __repr__&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;This provides more metainfo than standard __repr__&quot;&quot;&quot;</span>
 
         <span class="n">cpathname</span> <span class="o">=</span> <span class="sa">f</span><span class="s2">&quot;</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">table</span><span class="o">.</span><span class="n">_v_pathname</span><span class="si">}</span><span class="s2">.cols.</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">column</span><span class="o">.</span><span class="n">pathname</span><span class="si">}</span><span class="s2">&quot;</span>
         <span class="n">retstr</span> <span class="o">=</span> <span class="sa">f</span><span class="s2">&quot;&quot;&quot;</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">_v_pathname</span><span class="si">}</span><span class="s2"> (Index for column </span><span class="si">{</span><span class="n">cpathname</span><span class="si">}</span><span class="s2">)</span>
-<span class="s2">  optlevel := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">optlevel</span><span class="si">}</span><span class="s2"></span>
-<span class="s2">  kind := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">kind</span><span class="si">}</span><span class="s2"></span>
-<span class="s2">  filters := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">filters</span><span class="si">}</span><span class="s2"></span>
-<span class="s2">  is_csi := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">is_csi</span><span class="si">}</span><span class="s2"></span>
-<span class="s2">  nelements := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">nelements</span><span class="si">}</span><span class="s2"></span>
-<span class="s2">  chunksize := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">chunksize</span><span class="si">}</span><span class="s2"></span>
-<span class="s2">  slicesize := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">slicesize</span><span class="si">}</span><span class="s2"></span>
-<span class="s2">  blocksize := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">blocksize</span><span class="si">}</span><span class="s2"></span>
-<span class="s2">  superblocksize := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">superblocksize</span><span class="si">}</span><span class="s2"></span>
-<span class="s2">  dirty := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">dirty</span><span class="si">}</span><span class="s2"></span>
-<span class="s2">  byteorder := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">byteorder</span><span class="si">!r}</span><span class="s2"></span>
-<span class="s2">    sorted := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sorted</span><span class="si">}</span><span class="s2"></span>
-<span class="s2">    indices := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">indices</span><span class="si">}</span><span class="s2"></span>
-<span class="s2">    ranges := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">ranges</span><span class="si">}</span><span class="s2"></span>
-<span class="s2">    bounds := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">bounds</span><span class="si">}</span><span class="s2"></span>
-<span class="s2">    sortedLR := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sortedLR</span><span class="si">}</span><span class="s2"></span>
+<span class="s2">  optlevel := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">optlevel</span><span class="si">}</span>
+<span class="s2">  kind := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">kind</span><span class="si">}</span>
+<span class="s2">  filters := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">filters</span><span class="si">}</span>
+<span class="s2">  is_csi := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">is_csi</span><span class="si">}</span>
+<span class="s2">  nelements := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">nelements</span><span class="si">}</span>
+<span class="s2">  chunksize := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">chunksize</span><span class="si">}</span>
+<span class="s2">  slicesize := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">slicesize</span><span class="si">}</span>
+<span class="s2">  blocksize := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">blocksize</span><span class="si">}</span>
+<span class="s2">  superblocksize := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">superblocksize</span><span class="si">}</span>
+<span class="s2">  dirty := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">dirty</span><span class="si">}</span>
+<span class="s2">  byteorder := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">byteorder</span><span class="si">!r}</span>
+<span class="s2">    sorted := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sorted</span><span class="si">}</span>
+<span class="s2">    indices := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">indices</span><span class="si">}</span>
+<span class="s2">    ranges := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">ranges</span><span class="si">}</span>
+<span class="s2">    bounds := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">bounds</span><span class="si">}</span>
+<span class="s2">    sortedLR := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">sortedLR</span><span class="si">}</span>
 <span class="s2">    indicesLR := </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">indicesLR</span><span class="si">}</span><span class="s2">&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="n">retstr</span></div>
 
@@ -2262,7 +2267,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">table</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Accessor for the `Table` object of this `IndexesTableG`</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Accessor for the `Table` object of this `IndexesTableG`</span>
 <span class="sd">        container.&quot;&quot;&quot;</span>
         <span class="n">names</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_pathname</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s2">&quot;/&quot;</span><span class="p">)</span>
         <span class="n">tablename</span> <span class="o">=</span> <span class="n">names</span><span class="o">.</span><span class="n">pop</span><span class="p">()[</span><span class="mi">3</span><span class="p">:]</span>   <span class="c1"># &quot;_i_&quot; is at the beginning</span>
@@ -2273,7 +2278,7 @@ <h1>Source code for tables.index</h1><div class="highlight"><pre>
 
 
 <span class="k">class</span> <span class="nc">OldIndex</span><span class="p">(</span><span class="n">NotLoggedMixin</span><span class="p">,</span> <span class="n">Group</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;This is meant to hide indexes of PyTables 1.x files.&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;This is meant to hide indexes of PyTables 1.x files.&quot;&quot;&quot;</span>
 
     <span class="n">_c_classid</span> <span class="o">=</span> <span class="s1">&#39;CINDEX&#39;</span>
 </pre></div>
diff --git a/_modules/tables/indexes.html b/_modules/tables/indexes.html
index 7c5dcd6..befc220 100644
--- a/_modules/tables/indexes.html
+++ b/_modules/tables/indexes.html
@@ -3,7 +3,7 @@
 <head>
   <meta charset="utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>tables.indexes &mdash; PyTables 3.8.1.dev0 documentation</title>
+  <title>tables.indexes &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/graphviz.css" type="text/css" />
@@ -16,6 +16,7 @@
         <script src="../../_static/underscore.js"></script>
         <script src="../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../_static/doctools.js"></script>
+        <script src="../../_static/sphinx_highlight.js"></script>
     <script src="../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../genindex.html" />
     <link rel="search" title="Search" href="../../search.html" />
@@ -38,15 +39,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../index.html">
-            <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../index.html">
+            
+              <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.8.1.dev0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -78,9 +83,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../index.html">Module code</a> &raquo;</li>
-      <li>tables.indexes</li>
+      <li><a href="../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../index.html">Module code</a></li>
+      <li class="breadcrumb-item active">tables.indexes</li>
       <li class="wy-breadcrumbs-aside">
       </li>
   </ul>
@@ -104,14 +109,14 @@ <h1>Source code for tables.indexes</h1><div class="highlight"><pre>
 
 
 <span class="k">class</span> <span class="nc">CacheArray</span><span class="p">(</span><span class="n">indexesextension</span><span class="o">.</span><span class="n">CacheArray</span><span class="p">,</span> <span class="n">NotLoggedMixin</span><span class="p">,</span> <span class="n">EArray</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Container for keeping index caches of 1st and 2nd level.&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Container for keeping index caches of 1st and 2nd level.&quot;&quot;&quot;</span>
 
     <span class="c1"># Class identifier.</span>
     <span class="n">_c_classid</span> <span class="o">=</span> <span class="s1">&#39;CACHEARRAY&#39;</span>
 
 
 <span class="k">class</span> <span class="nc">LastRowArray</span><span class="p">(</span><span class="n">indexesextension</span><span class="o">.</span><span class="n">LastRowArray</span><span class="p">,</span> <span class="n">NotLoggedMixin</span><span class="p">,</span> <span class="n">CArray</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Container for keeping sorted and indices values of last row of an</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Container for keeping sorted and indices values of last row of an</span>
 <span class="sd">    index.&quot;&quot;&quot;</span>
 
     <span class="c1"># Class identifier.</span>
@@ -119,7 +124,7 @@ <h1>Source code for tables.indexes</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="IndexArray"><a class="viewcode-back" href="../../usersguide/libref/helper_classes.html#tables.indexes.IndexArray">[docs]</a><span class="k">class</span> <span class="nc">IndexArray</span><span class="p">(</span><span class="n">indexesextension</span><span class="o">.</span><span class="n">IndexArray</span><span class="p">,</span> <span class="n">NotLoggedMixin</span><span class="p">,</span> <span class="n">EArray</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Represent the index (sorted or reverse index) dataset in HDF5 file.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Represent the index (sorted or reverse index) dataset in HDF5 file.</span>
 
 <span class="sd">    All NumPy typecodes are supported except for complex datatypes.</span>
 
@@ -151,18 +156,18 @@ <h1>Source code for tables.indexes</h1><div class="highlight"><pre>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">chunksize</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The chunksize for this object.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The chunksize for this object.&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">chunkshape</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">slicesize</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The slicesize for this object.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The slicesize for this object.&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">shape</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span>
 
     <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">parentnode</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span>
                  <span class="n">atom</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">title</span><span class="o">=</span><span class="s2">&quot;&quot;</span><span class="p">,</span>
                  <span class="n">filters</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">byteorder</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create an IndexArray instance.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create an IndexArray instance.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_pathname</span> <span class="o">=</span> <span class="n">parentnode</span><span class="o">.</span><span class="n">_g_join</span><span class="p">(</span><span class="n">name</span><span class="p">)</span>
         <span class="k">if</span> <span class="n">atom</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
@@ -246,18 +251,18 @@ <h1>Source code for tables.indexes</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="p">(</span><span class="n">result1</span><span class="p">,</span> <span class="n">result2</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="fm">__str__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;A compact representation of this class&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;A compact representation of this class&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="sa">f</span><span class="s2">&quot;IndexArray(path=</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">_v_pathname</span><span class="si">}</span><span class="s2">)&quot;</span>
 
     <span class="k">def</span> <span class="fm">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;A verbose representation of this class.&quot;&quot;&quot;</span>
-
-        <span class="k">return</span> <span class="sa">f</span><span class="s2">&quot;&quot;&quot;</span><span class="si">{</span><span class="bp">self</span><span class="si">}</span><span class="s2"></span>
-<span class="s2">  atom = </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">atom</span><span class="si">!r}</span><span class="s2"></span>
-<span class="s2">  shape = </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">shape</span><span class="si">}</span><span class="s2"></span>
-<span class="s2">  nrows = </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">nrows</span><span class="si">}</span><span class="s2"></span>
-<span class="s2">  chunksize = </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">chunksize</span><span class="si">}</span><span class="s2"></span>
-<span class="s2">  slicesize = </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">slicesize</span><span class="si">}</span><span class="s2"></span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;A verbose representation of this class.&quot;&quot;&quot;</span>
+
+        <span class="k">return</span> <span class="sa">f</span><span class="s2">&quot;&quot;&quot;</span><span class="si">{</span><span class="bp">self</span><span class="si">}</span>
+<span class="s2">  atom = </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">atom</span><span class="si">!r}</span>
+<span class="s2">  shape = </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">shape</span><span class="si">}</span>
+<span class="s2">  nrows = </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">nrows</span><span class="si">}</span>
+<span class="s2">  chunksize = </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">chunksize</span><span class="si">}</span>
+<span class="s2">  slicesize = </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">slicesize</span><span class="si">}</span>
 <span class="s2">  byteorder = </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">byteorder</span><span class="si">!r}</span><span class="s2">&quot;&quot;&quot;</span></div>
 </pre></div>
 
diff --git a/_modules/tables/leaf.html b/_modules/tables/leaf.html
index d0db3e1..83e88a0 100644
--- a/_modules/tables/leaf.html
+++ b/_modules/tables/leaf.html
@@ -3,7 +3,7 @@
 <head>
   <meta charset="utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>tables.leaf &mdash; PyTables 3.8.1.dev0 documentation</title>
+  <title>tables.leaf &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/graphviz.css" type="text/css" />
@@ -16,6 +16,7 @@
         <script src="../../_static/underscore.js"></script>
         <script src="../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../_static/doctools.js"></script>
+        <script src="../../_static/sphinx_highlight.js"></script>
     <script src="../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../genindex.html" />
     <link rel="search" title="Search" href="../../search.html" />
@@ -38,15 +39,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../index.html">
-            <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../index.html">
+            
+              <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.8.1.dev0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -78,9 +83,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../index.html">Module code</a> &raquo;</li>
-      <li>tables.leaf</li>
+      <li><a href="../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../index.html">Module code</a></li>
+      <li class="breadcrumb-item active">tables.leaf</li>
       <li class="wy-breadcrumbs-aside">
       </li>
   </ul>
@@ -111,7 +116,7 @@ <h1>Source code for tables.leaf</h1><div class="highlight"><pre>
 
 
 <span class="k">def</span> <span class="nf">csformula</span><span class="p">(</span><span class="n">expected_mb</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Return the fitted chunksize for expected_mb.&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Return the fitted chunksize for expected_mb.&quot;&quot;&quot;</span>
 
     <span class="c1"># For a basesize of 8 KB, this will return:</span>
     <span class="c1"># 8 KB for datasets &lt;= 1 MB</span>
@@ -121,7 +126,7 @@ <h1>Source code for tables.leaf</h1><div class="highlight"><pre>
 
 
 <span class="k">def</span> <span class="nf">limit_es</span><span class="p">(</span><span class="n">expected_mb</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Protection against creating too small or too large chunks.&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Protection against creating too small or too large chunks.&quot;&quot;&quot;</span>
 
     <span class="k">if</span> <span class="n">expected_mb</span> <span class="o">&lt;</span> <span class="mi">1</span><span class="p">:</span>        <span class="c1"># &lt; 1 MB</span>
         <span class="n">expected_mb</span> <span class="o">=</span> <span class="mi">1</span>
@@ -131,7 +136,7 @@ <h1>Source code for tables.leaf</h1><div class="highlight"><pre>
 
 
 <span class="k">def</span> <span class="nf">calc_chunksize</span><span class="p">(</span><span class="n">expected_mb</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Compute the optimum HDF5 chunksize for I/O purposes.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Compute the optimum HDF5 chunksize for I/O purposes.</span>
 
 <span class="sd">    Rational: HDF5 takes the data in bunches of chunksize length to</span>
 <span class="sd">    write the on disk. A BTree in memory is used to map structures on</span>
@@ -156,7 +161,7 @@ <h1>Source code for tables.leaf</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="Leaf"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Leaf">[docs]</a><span class="k">class</span> <span class="nc">Leaf</span><span class="p">(</span><span class="n">Node</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Abstract base class for all PyTables leaves.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Abstract base class for all PyTables leaves.</span>
 
 <span class="sd">    A leaf is a node (see the Node class in :class:`Node`) which hangs from a</span>
 <span class="sd">    group (see the Group class in :class:`Group`) but, unlike a group, it can</span>
@@ -208,21 +213,21 @@ <h1>Source code for tables.leaf</h1><div class="highlight"><pre>
 
     <span class="c1"># These are a little hard to override, but so are properties.</span>
     <span class="n">attrs</span> <span class="o">=</span> <span class="n">Node</span><span class="o">.</span><span class="n">_v_attrs</span>
-    <span class="sd">&quot;&quot;&quot;The associated AttributeSet instance - see :ref:`AttributeSetClassDescr`</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;The associated AttributeSet instance - see :ref:`AttributeSetClassDescr`</span>
 <span class="sd">    (This is an easier-to-write alias of :attr:`Node._v_attrs`.&quot;&quot;&quot;</span>
     <span class="n">title</span> <span class="o">=</span> <span class="n">Node</span><span class="o">.</span><span class="n">_v_title</span>
-    <span class="sd">&quot;&quot;&quot;A description for this node</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;A description for this node</span>
 <span class="sd">    (This is an easier-to-write alias of :attr:`Node._v_title`).&quot;&quot;&quot;</span>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">name</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The name of this node in its parent group (This is an</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The name of this node in its parent group (This is an</span>
 <span class="sd">        easier-to-write alias of :attr:`Node._v_name`).&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_name</span>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">chunkshape</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The HDF5 chunk size for chunked leaves (a tuple).</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The HDF5 chunk size for chunked leaves (a tuple).</span>
 
 <span class="sd">        This is read-only because you cannot change the chunk size of a</span>
 <span class="sd">        leaf once it has been created.</span>
@@ -231,7 +236,7 @@ <h1>Source code for tables.leaf</h1><div class="highlight"><pre>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">object_id</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;A node identifier, which may change from run to run.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;A node identifier, which may change from run to run.</span>
 <span class="sd">        (This is an easier-to-write alias of :attr:`Node._v_objectid`).</span>
 
 <span class="sd">        .. versionchanged:: 3.0</span>
@@ -242,14 +247,14 @@ <h1>Source code for tables.leaf</h1><div class="highlight"><pre>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">ndim</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The number of dimensions of the leaf data.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The number of dimensions of the leaf data.</span>
 
 <span class="sd">        .. versionadded: 2.4&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">shape</span><span class="p">)</span>
 
     <span class="nd">@lazyattr</span>
     <span class="k">def</span> <span class="nf">filters</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Filter properties for this leaf.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Filter properties for this leaf.</span>
 
 <span class="sd">        See Also</span>
 <span class="sd">        --------</span>
@@ -261,7 +266,7 @@ <h1>Source code for tables.leaf</h1><div class="highlight"><pre>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">track_times</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Whether timestamps for the leaf are recorded</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Whether timestamps for the leaf are recorded</span>
 
 <span class="sd">        If the leaf is not a dataset, this will fail with HDF5ExtError.</span>
 
@@ -275,7 +280,7 @@ <h1>Source code for tables.leaf</h1><div class="highlight"><pre>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">maindim</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The dimension along which iterators work.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The dimension along which iterators work.</span>
 
 <span class="sd">        Its value is 0 (i.e. the first dimension) when the dataset is not</span>
 <span class="sd">        extendable, and self.extdim (where available) for extendable ones.</span>
@@ -287,7 +292,7 @@ <h1>Source code for tables.leaf</h1><div class="highlight"><pre>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">flavor</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The type of data object read from this leaf.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The type of data object read from this leaf.</span>
 
 <span class="sd">        It can be any of &#39;numpy&#39; or &#39;python&#39;.</span>
 
@@ -311,7 +316,7 @@ <h1>Source code for tables.leaf</h1><div class="highlight"><pre>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">size_on_disk</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;</span>
 <span class="sd">        The size of this leaf&#39;s data in bytes as it is stored on disk.  If the</span>
 <span class="sd">        data is compressed, this shows the compressed size.  In the case of</span>
 <span class="sd">        uncompressed, chunked data, this may be slightly larger than the amount</span>
@@ -324,16 +329,16 @@ <h1>Source code for tables.leaf</h1><div class="highlight"><pre>
                  <span class="n">byteorder</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">_log</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span>
                  <span class="n">track_times</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_new</span> <span class="o">=</span> <span class="n">new</span>
-        <span class="sd">&quot;&quot;&quot;Is this the first time the node has been created?&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Is this the first time the node has been created?&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">nrowsinbuf</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;</span>
 <span class="sd">        The number of rows that fits in internal input buffers.</span>
 
 <span class="sd">        You can change this to fine-tune the speed or memory</span>
 <span class="sd">        requirements of your application.</span>
 <span class="sd">        &quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_flavor</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Private storage for the `flavor` property.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Private storage for the `flavor` property.&quot;&quot;&quot;</span>
 
         <span class="k">if</span> <span class="n">new</span><span class="p">:</span>
             <span class="c1"># Get filter properties from parent group if not given.</span>
@@ -346,7 +351,7 @@ <h1>Source code for tables.leaf</h1><div class="highlight"><pre>
                     <span class="s2">&quot;the byteorder can only take &#39;little&#39; or &#39;big&#39; values &quot;</span>
                     <span class="s2">&quot;and you passed: </span><span class="si">%s</span><span class="s2">&quot;</span> <span class="o">%</span> <span class="n">byteorder</span><span class="p">)</span>
             <span class="bp">self</span><span class="o">.</span><span class="n">byteorder</span> <span class="o">=</span> <span class="n">byteorder</span>
-            <span class="sd">&quot;&quot;&quot;The byte ordering of the leaf data *on disk*.&quot;&quot;&quot;</span>
+<span class="w">            </span><span class="sd">&quot;&quot;&quot;The byte ordering of the leaf data *on disk*.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_want_track_times</span> <span class="o">=</span> <span class="n">track_times</span>
 
@@ -356,7 +361,7 @@ <h1>Source code for tables.leaf</h1><div class="highlight"><pre>
         <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="n">parentnode</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">_log</span><span class="p">)</span>
 
 <div class="viewcode-block" id="Leaf.__len__"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Leaf.__len__">[docs]</a>    <span class="k">def</span> <span class="fm">__len__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Return the length of the main dimension of the leaf data.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Return the length of the main dimension of the leaf data.</span>
 
 <span class="sd">        Please note that this may raise an OverflowError on 32-bit platforms</span>
 <span class="sd">        for datasets having more than 2**31-1 rows.  This is a limitation of</span>
@@ -367,7 +372,7 @@ <h1>Source code for tables.leaf</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">nrows</span></div>
 
     <span class="k">def</span> <span class="fm">__str__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The string representation for this object is its pathname in the</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The string representation for this object is its pathname in the</span>
 <span class="sd">        HDF5 object tree plus some additional metainfo.&quot;&quot;&quot;</span>
 
         <span class="n">filters</span> <span class="o">=</span> <span class="p">[]</span>
@@ -383,7 +388,7 @@ <h1>Source code for tables.leaf</h1><div class="highlight"><pre>
                 <span class="sa">f</span><span class="s2">&quot;</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">shape</span><span class="si">}{</span><span class="s1">&#39;, &#39;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">filters</span><span class="p">)</span><span class="si">}</span><span class="s2">) </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">_v_title</span><span class="si">!r}</span><span class="s2">&quot;</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_g_post_init_hook</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Code to be run after node creation and before creation logging.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Code to be run after node creation and before creation logging.</span>
 
 <span class="sd">        This method gets or sets the flavor of the leaf.</span>
 
@@ -404,7 +409,7 @@ <h1>Source code for tables.leaf</h1><div class="highlight"><pre>
                 <span class="bp">self</span><span class="o">.</span><span class="n">_flavor</span> <span class="o">=</span> <span class="n">internal_flavor</span>
 
     <span class="k">def</span> <span class="nf">_calc_chunkshape</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">expectedrows</span><span class="p">,</span> <span class="n">rowsize</span><span class="p">,</span> <span class="n">itemsize</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Calculate the shape for the HDF5 chunk.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Calculate the shape for the HDF5 chunk.&quot;&quot;&quot;</span>
 
         <span class="c1"># In case of a scalar shape, return the unit chunksize</span>
         <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">shape</span> <span class="o">==</span> <span class="p">():</span>
@@ -472,7 +477,7 @@ <h1>Source code for tables.leaf</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="nb">tuple</span><span class="p">(</span><span class="n">SizeType</span><span class="p">(</span><span class="n">s</span><span class="p">)</span> <span class="k">for</span> <span class="n">s</span> <span class="ow">in</span> <span class="n">chunkshape</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_calc_nrowsinbuf</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Calculate the number of rows that fits on a PyTables buffer.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Calculate the number of rows that fits on a PyTables buffer.&quot;&quot;&quot;</span>
 
         <span class="n">params</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_file</span><span class="o">.</span><span class="n">params</span>
         <span class="c1"># Compute the nrowsinbuf</span>
@@ -577,7 +582,7 @@ <h1>Source code for tables.leaf</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">new_node</span>
 
     <span class="k">def</span> <span class="nf">_g_fix_byteorder_data</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">data</span><span class="p">,</span> <span class="n">dbyteorder</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Fix the byteorder of data passed in constructors.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Fix the byteorder of data passed in constructors.&quot;&quot;&quot;</span>
         <span class="n">dbyteorder</span> <span class="o">=</span> <span class="n">byteorders</span><span class="p">[</span><span class="n">dbyteorder</span><span class="p">]</span>
         <span class="c1"># If self.byteorder has not been passed as an argument of</span>
         <span class="c1"># the constructor, then set it to the same value of data.</span>
@@ -601,7 +606,7 @@ <h1>Source code for tables.leaf</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">data</span>
 
     <span class="k">def</span> <span class="nf">_point_selection</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Perform a point-wise selection.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Perform a point-wise selection.</span>
 
 <span class="sd">        `key` can be any of the following items:</span>
 
@@ -683,7 +688,7 @@ <h1>Source code for tables.leaf</h1><div class="highlight"><pre>
 
     <span class="c1"># Tree manipulation</span>
 <div class="viewcode-block" id="Leaf.remove"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Leaf.remove">[docs]</a>    <span class="k">def</span> <span class="nf">remove</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Remove this node from the hierarchy.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Remove this node from the hierarchy.</span>
 
 <span class="sd">        This method has the behavior described</span>
 <span class="sd">        in :meth:`Node._f_remove`. Please note that there is no recursive flag</span>
@@ -694,7 +699,7 @@ <h1>Source code for tables.leaf</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">_f_remove</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="Leaf.rename"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Leaf.rename">[docs]</a>    <span class="k">def</span> <span class="nf">rename</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">newname</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Rename this node in place.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Rename this node in place.</span>
 
 <span class="sd">        This method has the behavior described in :meth:`Node._f_rename()`.</span>
 
@@ -704,7 +709,7 @@ <h1>Source code for tables.leaf</h1><div class="highlight"><pre>
 
 <div class="viewcode-block" id="Leaf.move"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Leaf.move">[docs]</a>    <span class="k">def</span> <span class="nf">move</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">newparent</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">newname</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
              <span class="n">overwrite</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">createparents</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Move or rename this node.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Move or rename this node.</span>
 
 <span class="sd">        This method has the behavior described in :meth:`Node._f_move`</span>
 
@@ -714,7 +719,7 @@ <h1>Source code for tables.leaf</h1><div class="highlight"><pre>
 
 <div class="viewcode-block" id="Leaf.copy"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Leaf.copy">[docs]</a>    <span class="k">def</span> <span class="nf">copy</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">newparent</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">newname</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
              <span class="n">overwrite</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">createparents</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Copy this node and return the new one.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Copy this node and return the new one.</span>
 
 <span class="sd">        This method has the behavior described in :meth:`Node._f_copy`. Please</span>
 <span class="sd">        note that there is no recursive flag since leaves do not have child</span>
@@ -764,7 +769,7 @@ <h1>Source code for tables.leaf</h1><div class="highlight"><pre>
             <span class="n">newparent</span><span class="p">,</span> <span class="n">newname</span><span class="p">,</span> <span class="n">overwrite</span><span class="p">,</span> <span class="n">createparents</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="Leaf.truncate"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Leaf.truncate">[docs]</a>    <span class="k">def</span> <span class="nf">truncate</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">size</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Truncate the main dimension to be size rows.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Truncate the main dimension to be size rows.</span>
 
 <span class="sd">        If the main dimension previously was larger than this size, the extra</span>
 <span class="sd">        data is lost.  If the main dimension previously was shorter, it is</span>
@@ -781,7 +786,7 @@ <h1>Source code for tables.leaf</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">_g_truncate</span><span class="p">(</span><span class="n">size</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="Leaf.isvisible"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Leaf.isvisible">[docs]</a>    <span class="k">def</span> <span class="nf">isvisible</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Is this node visible?</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Is this node visible?</span>
 
 <span class="sd">        This method has the behavior described in :meth:`Node._f_isvisible()`.</span>
 
@@ -791,7 +796,7 @@ <h1>Source code for tables.leaf</h1><div class="highlight"><pre>
 
     <span class="c1"># Attribute handling</span>
 <div class="viewcode-block" id="Leaf.get_attr"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Leaf.get_attr">[docs]</a>    <span class="k">def</span> <span class="nf">get_attr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get a PyTables attribute from this node.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get a PyTables attribute from this node.</span>
 
 <span class="sd">        This method has the behavior described in :meth:`Node._f_getattr`.</span>
 
@@ -800,7 +805,7 @@ <h1>Source code for tables.leaf</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_f_getattr</span><span class="p">(</span><span class="n">name</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="Leaf.set_attr"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Leaf.set_attr">[docs]</a>    <span class="k">def</span> <span class="nf">set_attr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Set a PyTables attribute for this node.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Set a PyTables attribute for this node.</span>
 
 <span class="sd">        This method has the behavior described in :meth:`Node._f_setattr()`.</span>
 
@@ -809,7 +814,7 @@ <h1>Source code for tables.leaf</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">_f_setattr</span><span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="n">value</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="Leaf.del_attr"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Leaf.del_attr">[docs]</a>    <span class="k">def</span> <span class="nf">del_attr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Delete a PyTables attribute from this node.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Delete a PyTables attribute from this node.</span>
 
 <span class="sd">        This method has the behavior described in :meth:`Node_f_delAttr`.</span>
 
@@ -819,7 +824,7 @@ <h1>Source code for tables.leaf</h1><div class="highlight"><pre>
 
     <span class="c1"># Data handling</span>
 <div class="viewcode-block" id="Leaf.flush"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Leaf.flush">[docs]</a>    <span class="k">def</span> <span class="nf">flush</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Flush pending data to disk.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Flush pending data to disk.</span>
 
 <span class="sd">        Saves whatever remaining buffered data to disk. It also releases</span>
 <span class="sd">        I/O buffers, so if you are filling many datasets in the same</span>
@@ -831,7 +836,7 @@ <h1>Source code for tables.leaf</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">_g_flush</span><span class="p">()</span></div>
 
 <div class="viewcode-block" id="Leaf._f_close"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Leaf._f_close">[docs]</a>    <span class="k">def</span> <span class="nf">_f_close</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">flush</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Close this node in the tree.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Close this node in the tree.</span>
 
 <span class="sd">        This method has the behavior described in :meth:`Node._f_close`.</span>
 <span class="sd">        Besides that, the optional argument flush tells whether to flush</span>
@@ -856,7 +861,7 @@ <h1>Source code for tables.leaf</h1><div class="highlight"><pre>
         <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="n">_f_close</span><span class="p">()</span></div>
 
 <div class="viewcode-block" id="Leaf.close"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Leaf.close">[docs]</a>    <span class="k">def</span> <span class="nf">close</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">flush</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Close this node in the tree.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Close this node in the tree.</span>
 
 <span class="sd">        This method is completely equivalent to :meth:`Leaf._f_close`.</span>
 
diff --git a/_modules/tables/link.html b/_modules/tables/link.html
index 2933cff..309ef6c 100644
--- a/_modules/tables/link.html
+++ b/_modules/tables/link.html
@@ -3,7 +3,7 @@
 <head>
   <meta charset="utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>tables.link &mdash; PyTables 3.8.1.dev0 documentation</title>
+  <title>tables.link &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/graphviz.css" type="text/css" />
@@ -16,6 +16,7 @@
         <script src="../../_static/underscore.js"></script>
         <script src="../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../_static/doctools.js"></script>
+        <script src="../../_static/sphinx_highlight.js"></script>
     <script src="../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../genindex.html" />
     <link rel="search" title="Search" href="../../search.html" />
@@ -38,15 +39,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../index.html">
-            <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../index.html">
+            
+              <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.8.1.dev0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -78,9 +83,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../index.html">Module code</a> &raquo;</li>
-      <li>tables.link</li>
+      <li><a href="../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../index.html">Module code</a></li>
+      <li class="breadcrumb-item active">tables.link</li>
       <li class="wy-breadcrumbs-aside">
       </li>
   </ul>
@@ -118,13 +123,13 @@ <h1>Source code for tables.link</h1><div class="highlight"><pre>
 
 
 <span class="k">def</span> <span class="nf">_g_get_link_class</span><span class="p">(</span><span class="n">parent_id</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Guess the link class.&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Guess the link class.&quot;&quot;&quot;</span>
 
     <span class="k">return</span> <span class="n">linkextension</span><span class="o">.</span><span class="n">_get_link_class</span><span class="p">(</span><span class="n">parent_id</span><span class="p">,</span> <span class="n">name</span><span class="p">)</span>
 
 
 <div class="viewcode-block" id="Link"><a class="viewcode-back" href="../../usersguide/libref/link_classes.html#tables.link.Link">[docs]</a><span class="k">class</span> <span class="nc">Link</span><span class="p">(</span><span class="n">Node</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Abstract base class for all PyTables links.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Abstract base class for all PyTables links.</span>
 
 <span class="sd">    A link is a node that refers to another node.  The Link class inherits from</span>
 <span class="sd">    Node class and the links that inherits from Link are SoftLink and</span>
@@ -146,7 +151,7 @@ <h1>Source code for tables.link</h1><div class="highlight"><pre>
     <span class="c1"># Properties</span>
     <span class="nd">@lazyattr</span>
     <span class="k">def</span> <span class="nf">_v_attrs</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;</span>
 <span class="sd">        A *NoAttrs* instance replacing the typical *AttributeSet* instance of</span>
 <span class="sd">        other node objects.  The purpose of *NoAttrs* is to make clear that</span>
 <span class="sd">        HDF5 attributes are not supported in link nodes.</span>
@@ -167,14 +172,14 @@ <h1>Source code for tables.link</h1><div class="highlight"><pre>
     <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">parentnode</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">target</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">_log</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_new</span> <span class="o">=</span> <span class="n">target</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">target</span> <span class="o">=</span> <span class="n">target</span>
-        <span class="sd">&quot;&quot;&quot;The path string to the pointed node.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The path string to the pointed node.&quot;&quot;&quot;</span>
 
         <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="n">parentnode</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">_log</span><span class="p">)</span>
 
     <span class="c1"># Public and tailored versions for copy, move, rename and remove methods</span>
 <div class="viewcode-block" id="Link.copy"><a class="viewcode-back" href="../../usersguide/libref/link_classes.html#tables.link.Link.copy">[docs]</a>    <span class="k">def</span> <span class="nf">copy</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">newparent</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">newname</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
              <span class="n">overwrite</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">createparents</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Copy this link and return the new one.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Copy this link and return the new one.</span>
 
 <span class="sd">        See :meth:`Node._f_copy` for a complete explanation of the arguments.</span>
 <span class="sd">        Please note that there is no recursive flag since links do not have</span>
@@ -190,7 +195,7 @@ <h1>Source code for tables.link</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">newnode</span></div>
 
 <div class="viewcode-block" id="Link.move"><a class="viewcode-back" href="../../usersguide/libref/link_classes.html#tables.link.Link.move">[docs]</a>    <span class="k">def</span> <span class="nf">move</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">newparent</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">newname</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">overwrite</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Move or rename this link.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Move or rename this link.</span>
 
 <span class="sd">        See :meth:`Node._f_move` for a complete explanation of the arguments.</span>
 
@@ -200,12 +205,12 @@ <h1>Source code for tables.link</h1><div class="highlight"><pre>
                             <span class="n">overwrite</span><span class="o">=</span><span class="n">overwrite</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="Link.remove"><a class="viewcode-back" href="../../usersguide/libref/link_classes.html#tables.link.Link.remove">[docs]</a>    <span class="k">def</span> <span class="nf">remove</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Remove this link from the hierarchy.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Remove this link from the hierarchy.&quot;&quot;&quot;</span>
 
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_f_remove</span><span class="p">()</span></div>
 
 <div class="viewcode-block" id="Link.rename"><a class="viewcode-back" href="../../usersguide/libref/link_classes.html#tables.link.Link.rename">[docs]</a>    <span class="k">def</span> <span class="nf">rename</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">newname</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">overwrite</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Rename this link in place.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Rename this link in place.</span>
 
 <span class="sd">        See :meth:`Node._f_rename` for a complete explanation of the arguments.</span>
 
@@ -218,7 +223,7 @@ <h1>Source code for tables.link</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="SoftLink"><a class="viewcode-back" href="../../usersguide/libref/link_classes.html#tables.link.SoftLink">[docs]</a><span class="k">class</span> <span class="nc">SoftLink</span><span class="p">(</span><span class="n">linkextension</span><span class="o">.</span><span class="n">SoftLink</span><span class="p">,</span> <span class="n">Link</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Represents a soft link (aka symbolic link).</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Represents a soft link (aka symbolic link).</span>
 
 <span class="sd">    A soft link is a reference to another node in the *same* file hierarchy.</span>
 <span class="sd">    Provided that the target node exists, its attributes and methods can be</span>
@@ -282,7 +287,7 @@ <h1>Source code for tables.link</h1><div class="highlight"><pre>
     <span class="n">_link_attrprefixes</span> <span class="o">=</span> <span class="p">(</span><span class="s1">&#39;_f_&#39;</span><span class="p">,</span> <span class="s1">&#39;_c_&#39;</span><span class="p">,</span> <span class="s1">&#39;_g_&#39;</span><span class="p">,</span> <span class="s1">&#39;_v_&#39;</span><span class="p">)</span>
 
 <div class="viewcode-block" id="SoftLink.__call__"><a class="viewcode-back" href="../../usersguide/libref/link_classes.html#tables.link.SoftLink.__call__">[docs]</a>    <span class="k">def</span> <span class="fm">__call__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Dereference `self.target` and return the object.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Dereference `self.target` and return the object.</span>
 
 <span class="sd">        Examples</span>
 <span class="sd">        --------</span>
@@ -347,7 +352,7 @@ <h1>Source code for tables.link</h1><div class="highlight"><pre>
             <span class="bp">self</span><span class="o">.</span><span class="n">dereference</span><span class="p">()</span><span class="o">.</span><span class="fm">__setattr__</span><span class="p">(</span><span class="n">attrname</span><span class="p">,</span> <span class="n">value</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="fm">__getitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;__getitem__ must be defined in the SoftLink class in order for array</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;__getitem__ must be defined in the SoftLink class in order for array</span>
 <span class="sd">        indexing syntax to work&quot;&quot;&quot;</span>
 
         <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_isopen</span><span class="p">:</span>
@@ -358,7 +363,7 @@ <h1>Source code for tables.link</h1><div class="highlight"><pre>
             <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">dereference</span><span class="p">()</span><span class="o">.</span><span class="fm">__getitem__</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="fm">__setitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;__setitem__ must be defined in the SoftLink class in order for array</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;__setitem__ must be defined in the SoftLink class in order for array</span>
 <span class="sd">        indexing syntax to work&quot;&quot;&quot;</span>
 
         <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_isopen</span><span class="p">:</span>
@@ -372,7 +377,7 @@ <h1>Source code for tables.link</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="ow">not</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">dereference</span><span class="p">()</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_file</span><span class="p">)</span>
 
 <div class="viewcode-block" id="SoftLink.__str__"><a class="viewcode-back" href="../../usersguide/libref/link_classes.html#tables.link.SoftLink.__str__">[docs]</a>    <span class="k">def</span> <span class="fm">__str__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Return a short string representation of the link.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Return a short string representation of the link.</span>
 
 <span class="sd">        Examples</span>
 <span class="sd">        --------</span>
@@ -397,7 +402,7 @@ <h1>Source code for tables.link</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="ExternalLink"><a class="viewcode-back" href="../../usersguide/libref/link_classes.html#tables.link.ExternalLink">[docs]</a><span class="k">class</span> <span class="nc">ExternalLink</span><span class="p">(</span><span class="n">linkextension</span><span class="o">.</span><span class="n">ExternalLink</span><span class="p">,</span> <span class="n">Link</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Represents an external link.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Represents an external link.</span>
 
 <span class="sd">    An external link is a reference to a node in *another* file.</span>
 <span class="sd">    Getting access to the pointed node (this action is called</span>
@@ -419,20 +424,20 @@ <h1>Source code for tables.link</h1><div class="highlight"><pre>
 
     <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">parentnode</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">target</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">_log</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">extfile</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;The external file handler, if the link has been dereferenced.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The external file handler, if the link has been dereferenced.</span>
 <span class="sd">        In case the link has not been dereferenced yet, its value is</span>
 <span class="sd">        None.&quot;&quot;&quot;</span>
         <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="n">parentnode</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">target</span><span class="p">,</span> <span class="n">_log</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_get_filename_node</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Return the external filename and nodepath from `self.target`.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Return the external filename and nodepath from `self.target`.&quot;&quot;&quot;</span>
 
         <span class="c1"># This is needed for avoiding the &#39;C:\\file.h5&#39; filepath notation</span>
         <span class="n">filename</span><span class="p">,</span> <span class="n">target</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">target</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">&#39;:/&#39;</span><span class="p">)</span>
         <span class="k">return</span> <span class="n">filename</span><span class="p">,</span> <span class="s1">&#39;/&#39;</span> <span class="o">+</span> <span class="n">target</span>
 
 <div class="viewcode-block" id="ExternalLink.__call__"><a class="viewcode-back" href="../../usersguide/libref/link_classes.html#tables.link.ExternalLink.__call__">[docs]</a>    <span class="k">def</span> <span class="fm">__call__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Dereference self.target and return the object.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Dereference self.target and return the object.</span>
 
 <span class="sd">        You can pass all the arguments supported by the :func:`open_file`</span>
 <span class="sd">        function (except filename, of course) so as to open the referenced</span>
@@ -472,7 +477,7 @@ <h1>Source code for tables.link</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">extfile</span><span class="o">.</span><span class="n">_get_node</span><span class="p">(</span><span class="n">target</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="ExternalLink.umount"><a class="viewcode-back" href="../../usersguide/libref/link_classes.html#tables.link.ExternalLink.umount">[docs]</a>    <span class="k">def</span> <span class="nf">umount</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Safely unmount self.extfile, if opened.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Safely unmount self.extfile, if opened.&quot;&quot;&quot;</span>
 
         <span class="n">extfile</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">extfile</span>
         <span class="c1"># Close external file, if open</span>
@@ -481,13 +486,13 @@ <h1>Source code for tables.link</h1><div class="highlight"><pre>
             <span class="bp">self</span><span class="o">.</span><span class="n">extfile</span> <span class="o">=</span> <span class="kc">None</span></div>
 
     <span class="k">def</span> <span class="nf">_f_close</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Especific close for external links.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Especific close for external links.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">umount</span><span class="p">()</span>
         <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="n">_f_close</span><span class="p">()</span>
 
 <div class="viewcode-block" id="ExternalLink.__str__"><a class="viewcode-back" href="../../usersguide/libref/link_classes.html#tables.link.ExternalLink.__str__">[docs]</a>    <span class="k">def</span> <span class="fm">__str__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Return a short string representation of the link.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Return a short string representation of the link.</span>
 
 <span class="sd">        Examples</span>
 <span class="sd">        --------</span>
diff --git a/_modules/tables/misc/enum.html b/_modules/tables/misc/enum.html
index a949616..8ef84a5 100644
--- a/_modules/tables/misc/enum.html
+++ b/_modules/tables/misc/enum.html
@@ -3,7 +3,7 @@
 <head>
   <meta charset="utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>tables.misc.enum &mdash; PyTables 3.8.1.dev0 documentation</title>
+  <title>tables.misc.enum &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../../_static/graphviz.css" type="text/css" />
@@ -16,6 +16,7 @@
         <script src="../../../_static/underscore.js"></script>
         <script src="../../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../../_static/doctools.js"></script>
+        <script src="../../../_static/sphinx_highlight.js"></script>
     <script src="../../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../../genindex.html" />
     <link rel="search" title="Search" href="../../../search.html" />
@@ -38,15 +39,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../../index.html">
-            <img src="../../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../../index.html">
+            
+              <img src="../../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.8.1.dev0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -78,9 +83,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../../index.html">Module code</a> &raquo;</li>
-      <li>tables.misc.enum</li>
+      <li><a href="../../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../../index.html">Module code</a></li>
+      <li class="breadcrumb-item active">tables.misc.enum</li>
       <li class="wy-breadcrumbs-aside">
       </li>
   </ul>
@@ -114,7 +119,7 @@ <h1>Source code for tables.misc.enum</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="Enum"><a class="viewcode-back" href="../../../usersguide/libref/helper_classes.html#tables.misc.enum.Enum">[docs]</a><span class="k">class</span> <span class="nc">Enum</span><span class="p">:</span>
-    <span class="sd">&quot;&quot;&quot;Enumerated type.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Enumerated type.</span>
 
 <span class="sd">    Each instance of this class represents an enumerated type. The</span>
 <span class="sd">    values of the type must be declared</span>
@@ -214,7 +219,7 @@ <h1>Source code for tables.misc.enum</h1><div class="highlight"><pre>
 <span class="s2">sequences, mappings and other enumerations&quot;&quot;&quot;</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_check_and_set_pair</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Check validity of enumerated value and insert it into type.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Check validity of enumerated value and insert it into type.&quot;&quot;&quot;</span>
 
         <span class="n">names</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_names</span>
         <span class="n">values</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_values</span>
@@ -241,7 +246,7 @@ <h1>Source code for tables.misc.enum</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="vm">__dict__</span><span class="p">[</span><span class="n">name</span><span class="p">]</span> <span class="o">=</span> <span class="n">value</span>
 
 <div class="viewcode-block" id="Enum.__getitem__"><a class="viewcode-back" href="../../../usersguide/libref/helper_classes.html#tables.misc.enum.Enum.__getitem__">[docs]</a>    <span class="k">def</span> <span class="fm">__getitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get the concrete value of the enumerated value with that name.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get the concrete value of the enumerated value with that name.</span>
 
 <span class="sd">        The name of the enumerated value must be a string. If there is no value</span>
 <span class="sd">        with that name in the enumeration, a KeyError is raised.</span>
@@ -270,15 +275,15 @@ <h1>Source code for tables.misc.enum</h1><div class="highlight"><pre>
             <span class="k">raise</span> <span class="ne">KeyError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;no enumerated value with that name: </span><span class="si">{</span><span class="n">name</span><span class="si">!r}</span><span class="s2">&quot;</span><span class="p">)</span></div>
 
     <span class="k">def</span> <span class="fm">__setitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;This operation is forbidden.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;This operation is forbidden.&quot;&quot;&quot;</span>
         <span class="k">raise</span> <span class="ne">IndexError</span><span class="p">(</span><span class="s2">&quot;operation not allowed&quot;</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="fm">__delitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;This operation is forbidden.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;This operation is forbidden.&quot;&quot;&quot;</span>
         <span class="k">raise</span> <span class="ne">IndexError</span><span class="p">(</span><span class="s2">&quot;operation not allowed&quot;</span><span class="p">)</span>
 
 <div class="viewcode-block" id="Enum.__getattr__"><a class="viewcode-back" href="../../../usersguide/libref/helper_classes.html#tables.misc.enum.Enum.__getattr__">[docs]</a>    <span class="k">def</span> <span class="fm">__getattr__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get the concrete value of the enumerated value with that name.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get the concrete value of the enumerated value with that name.</span>
 
 <span class="sd">        The name of the enumerated value must be a string. If there is no value</span>
 <span class="sd">        with that name in the enumeration, an AttributeError is raised.</span>
@@ -306,15 +311,15 @@ <h1>Source code for tables.misc.enum</h1><div class="highlight"><pre>
             <span class="k">raise</span> <span class="ne">AttributeError</span><span class="p">(</span><span class="o">*</span><span class="n">ke</span><span class="o">.</span><span class="n">args</span><span class="p">)</span></div>
 
     <span class="k">def</span> <span class="fm">__setattr__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;This operation is forbidden.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;This operation is forbidden.&quot;&quot;&quot;</span>
         <span class="k">raise</span> <span class="ne">AttributeError</span><span class="p">(</span><span class="s2">&quot;operation not allowed&quot;</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="fm">__delattr__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;This operation is forbidden.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;This operation is forbidden.&quot;&quot;&quot;</span>
         <span class="k">raise</span> <span class="ne">AttributeError</span><span class="p">(</span><span class="s2">&quot;operation not allowed&quot;</span><span class="p">)</span>
 
 <div class="viewcode-block" id="Enum.__contains__"><a class="viewcode-back" href="../../../usersguide/libref/helper_classes.html#tables.misc.enum.Enum.__contains__">[docs]</a>    <span class="k">def</span> <span class="fm">__contains__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Is there an enumerated value with that name in the type?</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Is there an enumerated value with that name in the type?</span>
 
 <span class="sd">        If the enumerated type has an enumerated value with that name, True is</span>
 <span class="sd">        returned.  Otherwise, False is returned. The name must be a string.</span>
@@ -351,7 +356,7 @@ <h1>Source code for tables.misc.enum</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">name</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_names</span></div>
 
 <div class="viewcode-block" id="Enum.__call__"><a class="viewcode-back" href="../../../usersguide/libref/helper_classes.html#tables.misc.enum.Enum.__call__">[docs]</a>    <span class="k">def</span> <span class="fm">__call__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">value</span><span class="p">,</span> <span class="o">*</span><span class="n">default</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get the name of the enumerated value with that concrete value.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get the name of the enumerated value with that concrete value.</span>
 
 <span class="sd">        If there is no value with that concrete value in the enumeration and a</span>
 <span class="sd">        second argument is given as a default, this is returned. Else, a</span>
@@ -388,7 +393,7 @@ <h1>Source code for tables.misc.enum</h1><div class="highlight"><pre>
                 <span class="sa">f</span><span class="s2">&quot;no enumerated value with that concrete value: </span><span class="si">{</span><span class="n">value</span><span class="si">!r}</span><span class="s2">&quot;</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="Enum.__len__"><a class="viewcode-back" href="../../../usersguide/libref/helper_classes.html#tables.misc.enum.Enum.__len__">[docs]</a>    <span class="k">def</span> <span class="fm">__len__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Return the number of enumerated values in the enumerated type.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Return the number of enumerated values in the enumerated type.</span>
 
 <span class="sd">        Examples</span>
 <span class="sd">        --------</span>
@@ -400,7 +405,7 @@ <h1>Source code for tables.misc.enum</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_names</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="Enum.__iter__"><a class="viewcode-back" href="../../../usersguide/libref/helper_classes.html#tables.misc.enum.Enum.__iter__">[docs]</a>    <span class="k">def</span> <span class="fm">__iter__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Iterate over the enumerated values.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Iterate over the enumerated values.</span>
 
 <span class="sd">        Enumerated values are returned as (name, value) pairs *in no particular</span>
 <span class="sd">        order*.</span>
@@ -418,7 +423,7 @@ <h1>Source code for tables.misc.enum</h1><div class="highlight"><pre>
         <span class="k">yield from</span> <span class="bp">self</span><span class="o">.</span><span class="n">_names</span><span class="o">.</span><span class="n">items</span><span class="p">()</span></div>
 
 <div class="viewcode-block" id="Enum.__eq__"><a class="viewcode-back" href="../../../usersguide/libref/helper_classes.html#tables.misc.enum.Enum.__eq__">[docs]</a>    <span class="k">def</span> <span class="fm">__eq__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Is the other enumerated type equivalent to this one?</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Is the other enumerated type equivalent to this one?</span>
 
 <span class="sd">        Two enumerated types are equivalent if they have exactly the same</span>
 <span class="sd">        enumerated values (i.e. with the same names and concrete values).</span>
@@ -465,7 +470,7 @@ <h1>Source code for tables.misc.enum</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_names</span> <span class="o">==</span> <span class="n">other</span><span class="o">.</span><span class="n">_names</span></div>
 
     <span class="k">def</span> <span class="fm">__ne__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Is the `other` enumerated type different from this one?</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Is the `other` enumerated type different from this one?</span>
 
 <span class="sd">        Two enumerated types are different if they don&#39;t have exactly</span>
 <span class="sd">        the same enumerated values (i.e. with the same names and</span>
@@ -505,7 +510,7 @@ <h1>Source code for tables.misc.enum</h1><div class="highlight"><pre>
     <span class="c1"># def __hash__(self):</span>
     <span class="c1">#    return hash((self.__class__, tuple(self._names.items())))</span>
 <div class="viewcode-block" id="Enum.__repr__"><a class="viewcode-back" href="../../../usersguide/libref/helper_classes.html#tables.misc.enum.Enum.__repr__">[docs]</a>    <span class="k">def</span> <span class="fm">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Return the canonical string representation of the enumeration. The</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Return the canonical string representation of the enumeration. The</span>
 <span class="sd">        output of this method can be evaluated to give a new enumeration object</span>
 <span class="sd">        that will compare equal to this one.</span>
 
diff --git a/_modules/tables/node.html b/_modules/tables/node.html
index a777762..1ae9a76 100644
--- a/_modules/tables/node.html
+++ b/_modules/tables/node.html
@@ -3,7 +3,7 @@
 <head>
   <meta charset="utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>tables.node &mdash; PyTables 3.8.1.dev0 documentation</title>
+  <title>tables.node &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/graphviz.css" type="text/css" />
@@ -16,6 +16,7 @@
         <script src="../../_static/underscore.js"></script>
         <script src="../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../_static/doctools.js"></script>
+        <script src="../../_static/sphinx_highlight.js"></script>
     <script src="../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../genindex.html" />
     <link rel="search" title="Search" href="../../search.html" />
@@ -38,15 +39,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../index.html">
-            <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../index.html">
+            
+              <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.8.1.dev0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -78,9 +83,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../index.html">Module code</a> &raquo;</li>
-      <li>tables.node</li>
+      <li><a href="../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../index.html">Module code</a></li>
+      <li class="breadcrumb-item active">tables.node</li>
       <li class="wy-breadcrumbs-aside">
       </li>
   </ul>
@@ -109,7 +114,7 @@ <h1>Source code for tables.node</h1><div class="highlight"><pre>
 
 
 <span class="k">def</span> <span class="nf">_closedrepr</span><span class="p">(</span><span class="n">oldmethod</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Decorate string representation method to handle closed nodes.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Decorate string representation method to handle closed nodes.</span>
 
 <span class="sd">    If the node is closed, a string like this is returned::</span>
 
@@ -130,7 +135,7 @@ <h1>Source code for tables.node</h1><div class="highlight"><pre>
 
 
 <span class="k">class</span> <span class="nc">MetaNode</span><span class="p">(</span><span class="nb">type</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Node metaclass.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Node metaclass.</span>
 
 <span class="sd">    This metaclass ensures that their instance classes get registered</span>
 <span class="sd">    into several dictionaries (namely the `tables.utils.class_name_dict`</span>
@@ -171,7 +176,7 @@ <h1>Source code for tables.node</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="Node"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Node">[docs]</a><span class="k">class</span> <span class="nc">Node</span><span class="p">(</span><span class="n">metaclass</span><span class="o">=</span><span class="n">MetaNode</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Abstract base class for all PyTables nodes.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Abstract base class for all PyTables nodes.</span>
 
 <span class="sd">    This is the base class for *all* nodes in a PyTables hierarchy. It is an</span>
 <span class="sd">    abstract class, i.e. it may not be directly instantiated; however, every</span>
@@ -230,7 +235,7 @@ <h1>Source code for tables.node</h1><div class="highlight"><pre>
 
     <span class="c1"># `_v_parent` is accessed via its file to avoid upwards references.</span>
     <span class="k">def</span> <span class="nf">_g_getparent</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The parent :class:`Group` instance&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The parent :class:`Group` instance&quot;&quot;&quot;</span>
         <span class="p">(</span><span class="n">parentpath</span><span class="p">,</span> <span class="n">nodename</span><span class="p">)</span> <span class="o">=</span> <span class="n">split_path</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_v_pathname</span><span class="p">)</span>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_file</span><span class="o">.</span><span class="n">_get_node</span><span class="p">(</span><span class="n">parentpath</span><span class="p">)</span>
 
@@ -240,7 +245,7 @@ <h1>Source code for tables.node</h1><div class="highlight"><pre>
     <span class="c1"># This saves 0.7s/3.8s.</span>
     <span class="nd">@lazyattr</span>
     <span class="k">def</span> <span class="nf">_v_attrs</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The associated `AttributeSet` instance.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The associated `AttributeSet` instance.</span>
 
 <span class="sd">        See Also</span>
 <span class="sd">        --------</span>
@@ -253,7 +258,7 @@ <h1>Source code for tables.node</h1><div class="highlight"><pre>
     <span class="c1"># &#39;_v_title&#39; is a direct read-write shorthand for the &#39;TITLE&#39; attribute</span>
     <span class="c1"># with the empty string as a default value.</span>
     <span class="k">def</span> <span class="nf">_g_gettitle</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;A description of this node. A shorthand for TITLE attribute.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;A description of this node. A shorthand for TITLE attribute.&quot;&quot;&quot;</span>
         <span class="k">if</span> <span class="nb">hasattr</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_v_attrs</span><span class="p">,</span> <span class="s1">&#39;TITLE&#39;</span><span class="p">):</span>
             <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_attrs</span><span class="o">.</span><span class="n">TITLE</span>
         <span class="k">else</span><span class="p">:</span>
@@ -267,7 +272,7 @@ <h1>Source code for tables.node</h1><div class="highlight"><pre>
     <span class="c1"># This may be looked up by ``__del__`` when ``__init__`` doesn&#39;t get</span>
     <span class="c1"># to be called.  See ticket #144 for more info.</span>
     <span class="n">_v_isopen</span> <span class="o">=</span> <span class="kc">False</span>
-    <span class="sd">&quot;&quot;&quot;Whehter this node is open or not.&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Whehter this node is open or not.&quot;&quot;&quot;</span>
 
     <span class="c1"># The ``_log`` argument is only meant to be used by ``_g_copy_as_child()``</span>
     <span class="c1"># to avoid logging the creation of children nodes of a copied sub-tree.</span>
@@ -280,23 +285,23 @@ <h1>Source code for tables.node</h1><div class="highlight"><pre>
             <span class="n">parentnode</span> <span class="o">=</span> <span class="n">parentnode</span><span class="o">.</span><span class="n">dereference</span><span class="p">()</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_file</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;The hosting File instance (see :ref:`FileClassDescr`).&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The hosting File instance (see :ref:`FileClassDescr`).&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_isopen</span> <span class="o">=</span> <span class="kc">False</span>
-        <span class="sd">&quot;&quot;&quot;Whether this node is open or not.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Whether this node is open or not.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_pathname</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;The path of this node in the tree (a string).&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The path of this node in the tree (a string).&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_name</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;The name of this node in its parent group (a string).&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The name of this node in its parent group (a string).&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_depth</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;The depth of this node in the tree (an non-negative integer value).</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The depth of this node in the tree (an non-negative integer value).</span>
 <span class="sd">        &quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_maxtreedepth</span> <span class="o">=</span> <span class="n">parentnode</span><span class="o">.</span><span class="n">_v_file</span><span class="o">.</span><span class="n">params</span><span class="p">[</span><span class="s1">&#39;MAX_TREE_DEPTH&#39;</span><span class="p">]</span>
-        <span class="sd">&quot;&quot;&quot;Maximum tree depth before warning the user.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Maximum tree depth before warning the user.</span>
 
 <span class="sd">        .. versionchanged:: 3.0</span>
 <span class="sd">           Renamed into *_v_maxtreedepth* from *_v_maxTreeDepth*.</span>
@@ -304,10 +309,10 @@ <h1>Source code for tables.node</h1><div class="highlight"><pre>
 <span class="sd">        &quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_v__deleting</span> <span class="o">=</span> <span class="kc">False</span>
-        <span class="sd">&quot;&quot;&quot;Is the node being deleted?&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Is the node being deleted?&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_objectid</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;A node identifier (may change from run to run).</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;A node identifier (may change from run to run).</span>
 
 <span class="sd">        .. versionchanged:: 3.0</span>
 <span class="sd">           The *_v_objectID* attribute has been renamed into *_v_objectid*.</span>
@@ -395,19 +400,19 @@ <h1>Source code for tables.node</h1><div class="highlight"><pre>
                 <span class="bp">self</span><span class="o">.</span><span class="n">_f_close</span><span class="p">()</span>
 
     <span class="k">def</span> <span class="nf">_g_pre_kill_hook</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Code to be called before killing the node.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Code to be called before killing the node.&quot;&quot;&quot;</span>
         <span class="k">pass</span>
 
     <span class="k">def</span> <span class="nf">_g_create</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create a new HDF5 node and return its object identifier.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create a new HDF5 node and return its object identifier.&quot;&quot;&quot;</span>
         <span class="k">raise</span> <span class="ne">NotImplementedError</span>
 
     <span class="k">def</span> <span class="nf">_g_open</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Open an existing HDF5 node and return its object identifier.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Open an existing HDF5 node and return its object identifier.&quot;&quot;&quot;</span>
         <span class="k">raise</span> <span class="ne">NotImplementedError</span>
 
     <span class="k">def</span> <span class="nf">_g_check_open</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Check that the node is open.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Check that the node is open.</span>
 
 <span class="sd">        If the node is closed, a `ClosedNodeError` is raised.</span>
 
@@ -418,7 +423,7 @@ <h1>Source code for tables.node</h1><div class="highlight"><pre>
         <span class="k">assert</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_file</span><span class="o">.</span><span class="n">isopen</span><span class="p">,</span> <span class="s2">&quot;found an open node in a closed file&quot;</span>
 
     <span class="k">def</span> <span class="nf">_g_set_location</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">parentnode</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Set location-dependent attributes.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Set location-dependent attributes.</span>
 
 <span class="sd">        Sets the location-dependent attributes of this node to reflect</span>
 <span class="sd">        that it is placed under the specified `parentnode`, with the</span>
@@ -464,7 +469,7 @@ <h1>Source code for tables.node</h1><div class="highlight"><pre>
             <span class="n">file_</span><span class="o">.</span><span class="n">_node_manager</span><span class="o">.</span><span class="n">cache_node</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_pathname</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_g_update_location</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">newparentpath</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Update location-dependent attributes.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Update location-dependent attributes.</span>
 
 <span class="sd">        Updates location data when an ancestor node has changed its</span>
 <span class="sd">        location in the hierarchy to `newparentpath`.  In fact, this</span>
@@ -498,7 +503,7 @@ <h1>Source code for tables.node</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">_g_update_dependent</span><span class="p">()</span>
 
     <span class="k">def</span> <span class="nf">_g_del_location</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Clear location-dependent attributes.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Clear location-dependent attributes.</span>
 
 <span class="sd">        This also triggers the removal of file references to this node.</span>
 
@@ -520,11 +525,11 @@ <h1>Source code for tables.node</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_depth</span> <span class="o">=</span> <span class="kc">None</span>
 
     <span class="k">def</span> <span class="nf">_g_post_init_hook</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Code to be run after node creation and before creation logging.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Code to be run after node creation and before creation logging.&quot;&quot;&quot;</span>
         <span class="k">pass</span>
 
     <span class="k">def</span> <span class="nf">_g_update_dependent</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Update dependent objects after a location change.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Update dependent objects after a location change.</span>
 
 <span class="sd">        All dependent objects (but not nodes!) referencing this node</span>
 <span class="sd">        must be updated here.</span>
@@ -535,7 +540,7 @@ <h1>Source code for tables.node</h1><div class="highlight"><pre>
             <span class="bp">self</span><span class="o">.</span><span class="n">_v_attrs</span><span class="o">.</span><span class="n">_g_update_node_location</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
 
 <div class="viewcode-block" id="Node._f_close"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Node._f_close">[docs]</a>    <span class="k">def</span> <span class="nf">_f_close</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Close this node in the tree.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Close this node in the tree.</span>
 
 <span class="sd">        This releases all resources held by the node, so it should not</span>
 <span class="sd">        be used again.  On nodes with data, it may be flushed to disk.</span>
@@ -574,7 +579,7 @@ <h1>Source code for tables.node</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_isopen</span> <span class="o">=</span> <span class="kc">False</span></div>
 
     <span class="k">def</span> <span class="nf">_g_remove</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">recursive</span><span class="p">,</span> <span class="n">force</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Remove this node from the hierarchy.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Remove this node from the hierarchy.</span>
 
 <span class="sd">        If the node has children, recursive removal must be stated by</span>
 <span class="sd">        giving `recursive` a true value; otherwise, a `NodeError` will</span>
@@ -597,7 +602,7 @@ <h1>Source code for tables.node</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">_g_delete</span><span class="p">(</span><span class="n">parent</span><span class="p">)</span>
 
 <div class="viewcode-block" id="Node._f_remove"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Node._f_remove">[docs]</a>    <span class="k">def</span> <span class="nf">_f_remove</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">recursive</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">force</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Remove this node from the hierarchy.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Remove this node from the hierarchy.</span>
 
 <span class="sd">        If the node has children, recursive removal must be stated by giving</span>
 <span class="sd">        recursive a true value; otherwise, a NodeError will be raised.</span>
@@ -624,7 +629,7 @@ <h1>Source code for tables.node</h1><div class="highlight"><pre>
         <span class="n">move_to_shadow</span><span class="p">(</span><span class="n">file_</span><span class="p">,</span> <span class="n">oldpathname</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_g_move</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">newparent</span><span class="p">,</span> <span class="n">newname</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Move this node in the hierarchy.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Move this node in the hierarchy.</span>
 
 <span class="sd">        Moves the node into the given `newparent`, with the given</span>
 <span class="sd">        `newname`.</span>
@@ -660,7 +665,7 @@ <h1>Source code for tables.node</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">_g_update_dependent</span><span class="p">()</span>
 
 <div class="viewcode-block" id="Node._f_rename"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Node._f_rename">[docs]</a>    <span class="k">def</span> <span class="nf">_f_rename</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">newname</span><span class="p">,</span> <span class="n">overwrite</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Rename this node in place.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Rename this node in place.</span>
 
 <span class="sd">        Changes the name of a node to *newname* (a string).  If a node with the</span>
 <span class="sd">        same newname already exists and overwrite is true, recursively remove</span>
@@ -672,7 +677,7 @@ <h1>Source code for tables.node</h1><div class="highlight"><pre>
 
 <div class="viewcode-block" id="Node._f_move"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Node._f_move">[docs]</a>    <span class="k">def</span> <span class="nf">_f_move</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">newparent</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">newname</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
                 <span class="n">overwrite</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">createparents</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Move or rename this node.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Move or rename this node.</span>
 
 <span class="sd">        Moves a node into a new parent group, or changes the name of the</span>
 <span class="sd">        node. newparent can be a Group object (see :ref:`GroupClassDescr`) or a</span>
@@ -762,7 +767,7 @@ <h1>Source code for tables.node</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_file</span><span class="o">.</span><span class="n">_log</span><span class="p">(</span><span class="s1">&#39;MOVE&#39;</span><span class="p">,</span> <span class="n">oldpathname</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_pathname</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_g_copy</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">newparent</span><span class="p">,</span> <span class="n">newname</span><span class="p">,</span> <span class="n">recursive</span><span class="p">,</span> <span class="n">_log</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Copy this node and return the new one.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Copy this node and return the new one.</span>
 
 <span class="sd">        Creates and returns a copy of the node in the given `newparent`,</span>
 <span class="sd">        with the given `newname`.  If `recursive` copy is stated, all</span>
@@ -780,7 +785,7 @@ <h1>Source code for tables.node</h1><div class="highlight"><pre>
         <span class="k">raise</span> <span class="ne">NotImplementedError</span>
 
     <span class="k">def</span> <span class="nf">_g_copy_as_child</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">newparent</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Copy this node as a child of another group.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Copy this node as a child of another group.</span>
 
 <span class="sd">        Copies just this node into `newparent`, not recursing children</span>
 <span class="sd">        nor overwriting nodes nor logging the copy.  This is intended to</span>
@@ -794,7 +799,7 @@ <h1>Source code for tables.node</h1><div class="highlight"><pre>
 <div class="viewcode-block" id="Node._f_copy"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Node._f_copy">[docs]</a>    <span class="k">def</span> <span class="nf">_f_copy</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">newparent</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">newname</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
                 <span class="n">overwrite</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">recursive</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">createparents</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span>
                 <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Copy this node and return the new node.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Copy this node and return the new node.</span>
 
 <span class="sd">        Creates and returns a copy of the node, maybe in a different place in</span>
 <span class="sd">        the hierarchy. newparent can be a Group object (see</span>
@@ -888,7 +893,7 @@ <h1>Source code for tables.node</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_g_copy</span><span class="p">(</span><span class="n">dstparent</span><span class="p">,</span> <span class="n">dstname</span><span class="p">,</span> <span class="n">recursive</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="Node._f_isvisible"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Node._f_isvisible">[docs]</a>    <span class="k">def</span> <span class="nf">_f_isvisible</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Is this node visible?&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Is this node visible?&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_g_check_open</span><span class="p">()</span>
         <span class="k">return</span> <span class="n">isvisiblepath</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_v_pathname</span><span class="p">)</span></div>
@@ -923,7 +928,7 @@ <h1>Source code for tables.node</h1><div class="highlight"><pre>
             <span class="n">parent</span><span class="o">.</span><span class="n">_f_get_child</span><span class="p">(</span><span class="n">name</span><span class="p">)</span><span class="o">.</span><span class="n">_f_remove</span><span class="p">(</span><span class="kc">True</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_g_check_name</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Check validity of name for this particular kind of node.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Check validity of name for this particular kind of node.</span>
 
 <span class="sd">        This is invoked once the standard HDF5 and natural naming checks</span>
 <span class="sd">        have successfully passed.</span>
@@ -936,7 +941,7 @@ <h1>Source code for tables.node</h1><div class="highlight"><pre>
                 <span class="s2">&quot;node name starts with reserved prefix ``_i_``: </span><span class="si">%s</span><span class="s2">&quot;</span> <span class="o">%</span> <span class="n">name</span><span class="p">)</span>
 
 <div class="viewcode-block" id="Node._f_getattr"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Node._f_getattr">[docs]</a>    <span class="k">def</span> <span class="nf">_f_getattr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get a PyTables attribute from this node.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get a PyTables attribute from this node.</span>
 
 <span class="sd">        If the named attribute does not exist, an AttributeError is</span>
 <span class="sd">        raised.</span>
@@ -946,7 +951,7 @@ <h1>Source code for tables.node</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="nb">getattr</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_v_attrs</span><span class="p">,</span> <span class="n">name</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="Node._f_setattr"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Node._f_setattr">[docs]</a>    <span class="k">def</span> <span class="nf">_f_setattr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Set a PyTables attribute for this node.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Set a PyTables attribute for this node.</span>
 
 <span class="sd">        If the node already has a large number of attributes, a</span>
 <span class="sd">        PerformanceWarning is issued.</span>
@@ -956,7 +961,7 @@ <h1>Source code for tables.node</h1><div class="highlight"><pre>
         <span class="nb">setattr</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_v_attrs</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">value</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="Node._f_delattr"><a class="viewcode-back" href="../../usersguide/libref/hierarchy_classes.html#tables.Node._f_delattr">[docs]</a>    <span class="k">def</span> <span class="nf">_f_delattr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Delete a PyTables attribute from this node.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Delete a PyTables attribute from this node.</span>
 
 <span class="sd">        If the named attribute does not exist, an AttributeError is</span>
 <span class="sd">        raised.</span>
diff --git a/_modules/tables/nodes/filenode.html b/_modules/tables/nodes/filenode.html
index 44e3d68..15d21a7 100644
--- a/_modules/tables/nodes/filenode.html
+++ b/_modules/tables/nodes/filenode.html
@@ -3,7 +3,7 @@
 <head>
   <meta charset="utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>tables.nodes.filenode &mdash; PyTables 3.8.1.dev0 documentation</title>
+  <title>tables.nodes.filenode &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../../_static/graphviz.css" type="text/css" />
@@ -16,6 +16,7 @@
         <script src="../../../_static/underscore.js"></script>
         <script src="../../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../../_static/doctools.js"></script>
+        <script src="../../../_static/sphinx_highlight.js"></script>
     <script src="../../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../../genindex.html" />
     <link rel="search" title="Search" href="../../../search.html" />
@@ -38,15 +39,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../../index.html">
-            <img src="../../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../../index.html">
+            
+              <img src="../../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.8.1.dev0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -78,9 +83,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../../index.html">Module code</a> &raquo;</li>
-      <li>tables.nodes.filenode</li>
+      <li><a href="../../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../../index.html">Module code</a></li>
+      <li class="breadcrumb-item active">tables.nodes.filenode</li>
       <li class="wy-breadcrumbs-aside">
       </li>
   </ul>
@@ -129,7 +134,7 @@ <h1>Source code for tables.nodes.filenode</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="RawPyTablesIO"><a class="viewcode-back" href="../../../usersguide/libref/filenode_classes.html#tables.nodes.filenode.RawPyTablesIO">[docs]</a><span class="k">class</span> <span class="nc">RawPyTablesIO</span><span class="p">(</span><span class="n">io</span><span class="o">.</span><span class="n">RawIOBase</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Base class for raw binary I/O on HDF5 files using PyTables.&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Base class for raw binary I/O on HDF5 files using PyTables.&quot;&quot;&quot;</span>
 
     <span class="c1"># A lambda to turn a size into a shape, for each version.</span>
     <span class="n">_size_to_shape</span> <span class="o">=</span> <span class="p">[</span>
@@ -160,20 +165,20 @@ <h1>Source code for tables.nodes.filenode</h1><div class="highlight"><pre>
     <span class="c1"># read only attribute</span>
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">mode</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;File mode.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;File mode.&quot;&quot;&quot;</span>
 
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_mode</span>
 
     <span class="c1"># def tell(self) -&gt; int:</span>
 <div class="viewcode-block" id="RawPyTablesIO.tell"><a class="viewcode-back" href="../../../usersguide/libref/filenode_classes.html#tables.nodes.filenode.RawPyTablesIO.tell">[docs]</a>    <span class="k">def</span> <span class="nf">tell</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Return current stream position.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Return current stream position.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_checkClosed</span><span class="p">()</span>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_pos</span></div>
 
     <span class="c1"># def seek(self, pos: int, whence: int = 0) -&gt; int:</span>
 <div class="viewcode-block" id="RawPyTablesIO.seek"><a class="viewcode-back" href="../../../usersguide/libref/filenode_classes.html#tables.nodes.filenode.RawPyTablesIO.seek">[docs]</a>    <span class="k">def</span> <span class="nf">seek</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">pos</span><span class="p">,</span> <span class="n">whence</span><span class="o">=</span><span class="mi">0</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Change stream position.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Change stream position.</span>
 
 <span class="sd">        Change the stream position to byte offset offset. offset is</span>
 <span class="sd">        interpreted relative to the position indicated by whence.  Values</span>
@@ -208,7 +213,7 @@ <h1>Source code for tables.nodes.filenode</h1><div class="highlight"><pre>
 
     <span class="c1"># def seekable(self) -&gt; bool:</span>
 <div class="viewcode-block" id="RawPyTablesIO.seekable"><a class="viewcode-back" href="../../../usersguide/libref/filenode_classes.html#tables.nodes.filenode.RawPyTablesIO.seekable">[docs]</a>    <span class="k">def</span> <span class="nf">seekable</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Return whether object supports random access.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Return whether object supports random access.</span>
 
 <span class="sd">        If False, seek(), tell() and truncate() will raise IOError. This</span>
 <span class="sd">        method may need to do a test seek().</span>
@@ -219,7 +224,7 @@ <h1>Source code for tables.nodes.filenode</h1><div class="highlight"><pre>
 
     <span class="c1"># def fileno(self) -&gt; int:</span>
 <div class="viewcode-block" id="RawPyTablesIO.fileno"><a class="viewcode-back" href="../../../usersguide/libref/filenode_classes.html#tables.nodes.filenode.RawPyTablesIO.fileno">[docs]</a>    <span class="k">def</span> <span class="nf">fileno</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Returns underlying file descriptor if one exists.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Returns underlying file descriptor if one exists.</span>
 
 <span class="sd">        An IOError is raised if the IO object does not use a file</span>
 <span class="sd">        descriptor.</span>
@@ -231,7 +236,7 @@ <h1>Source code for tables.nodes.filenode</h1><div class="highlight"><pre>
 
     <span class="c1"># def close(self) -&gt; None:</span>
 <div class="viewcode-block" id="RawPyTablesIO.close"><a class="viewcode-back" href="../../../usersguide/libref/filenode_classes.html#tables.nodes.filenode.RawPyTablesIO.close">[docs]</a>    <span class="k">def</span> <span class="nf">close</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Flush and close the IO object.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Flush and close the IO object.</span>
 
 <span class="sd">        This method has no effect if the file is already closed.</span>
 
@@ -248,7 +253,7 @@ <h1>Source code for tables.nodes.filenode</h1><div class="highlight"><pre>
             <span class="bp">self</span><span class="o">.</span><span class="n">_node</span> <span class="o">=</span> <span class="kc">None</span></div>
 
 <div class="viewcode-block" id="RawPyTablesIO.flush"><a class="viewcode-back" href="../../../usersguide/libref/filenode_classes.html#tables.nodes.filenode.RawPyTablesIO.flush">[docs]</a>    <span class="k">def</span> <span class="nf">flush</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Flush write buffers, if applicable.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Flush write buffers, if applicable.</span>
 
 <span class="sd">        This is not implemented for read-only and non-blocking streams.</span>
 
@@ -259,7 +264,7 @@ <h1>Source code for tables.nodes.filenode</h1><div class="highlight"><pre>
 
     <span class="c1"># def truncate(self, pos: int = None) -&gt; int:</span>
 <div class="viewcode-block" id="RawPyTablesIO.truncate"><a class="viewcode-back" href="../../../usersguide/libref/filenode_classes.html#tables.nodes.filenode.RawPyTablesIO.truncate">[docs]</a>    <span class="k">def</span> <span class="nf">truncate</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">pos</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Truncate file to size bytes.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Truncate file to size bytes.</span>
 
 <span class="sd">        Size defaults to the current IO position as reported by tell().</span>
 <span class="sd">        Return the new size.</span>
@@ -285,7 +290,7 @@ <h1>Source code for tables.nodes.filenode</h1><div class="highlight"><pre>
 
     <span class="c1"># def readable(self) -&gt; bool:</span>
 <div class="viewcode-block" id="RawPyTablesIO.readable"><a class="viewcode-back" href="../../../usersguide/libref/filenode_classes.html#tables.nodes.filenode.RawPyTablesIO.readable">[docs]</a>    <span class="k">def</span> <span class="nf">readable</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Return whether object was opened for reading.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Return whether object was opened for reading.</span>
 
 <span class="sd">        If False, read() will raise IOError.</span>
 
@@ -296,7 +301,7 @@ <h1>Source code for tables.nodes.filenode</h1><div class="highlight"><pre>
 
     <span class="c1"># def writable(self) -&gt; bool:</span>
 <div class="viewcode-block" id="RawPyTablesIO.writable"><a class="viewcode-back" href="../../../usersguide/libref/filenode_classes.html#tables.nodes.filenode.RawPyTablesIO.writable">[docs]</a>    <span class="k">def</span> <span class="nf">writable</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Return whether object was opened for writing.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Return whether object was opened for writing.</span>
 
 <span class="sd">        If False, write() and truncate() will raise IOError.</span>
 
@@ -307,7 +312,7 @@ <h1>Source code for tables.nodes.filenode</h1><div class="highlight"><pre>
 
     <span class="c1"># def readinto(self, b: bytearray) -&gt; int:</span>
 <div class="viewcode-block" id="RawPyTablesIO.readinto"><a class="viewcode-back" href="../../../usersguide/libref/filenode_classes.html#tables.nodes.filenode.RawPyTablesIO.readinto">[docs]</a>    <span class="k">def</span> <span class="nf">readinto</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">b</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Read up to len(b) bytes into b.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Read up to len(b) bytes into b.</span>
 
 <span class="sd">        Returns number of bytes read (0 for EOF), or None if the object</span>
 <span class="sd">        is set not to block as has no data to read.</span>
@@ -343,7 +348,7 @@ <h1>Source code for tables.nodes.filenode</h1><div class="highlight"><pre>
 
     <span class="c1"># def readline(self, limit: int = -1) -&gt; bytes:</span>
 <div class="viewcode-block" id="RawPyTablesIO.readline"><a class="viewcode-back" href="../../../usersguide/libref/filenode_classes.html#tables.nodes.filenode.RawPyTablesIO.readline">[docs]</a>    <span class="k">def</span> <span class="nf">readline</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">limit</span><span class="o">=-</span><span class="mi">1</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Read and return a line from the stream.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Read and return a line from the stream.</span>
 
 <span class="sd">        If limit is specified, at most limit bytes will be read.</span>
 
@@ -424,7 +429,7 @@ <h1>Source code for tables.nodes.filenode</h1><div class="highlight"><pre>
 
     <span class="c1"># def write(self, b: bytes) -&gt; int:</span>
 <div class="viewcode-block" id="RawPyTablesIO.write"><a class="viewcode-back" href="../../../usersguide/libref/filenode_classes.html#tables.nodes.filenode.RawPyTablesIO.write">[docs]</a>    <span class="k">def</span> <span class="nf">write</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">b</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Write the given buffer to the IO stream.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Write the given buffer to the IO stream.</span>
 
 <span class="sd">        Returns the number of bytes written, which may be less than</span>
 <span class="sd">        len(b).</span>
@@ -458,7 +463,7 @@ <h1>Source code for tables.nodes.filenode</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">n</span></div>
 
     <span class="k">def</span> <span class="nf">_checkClosed</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Checks if file node is open.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Checks if file node is open.</span>
 
 <span class="sd">        Checks whether the file node is open or has been closed. In the</span>
 <span class="sd">        second case, a ValueError is raised. If the host PyTables has</span>
@@ -523,7 +528,7 @@ <h1>Source code for tables.nodes.filenode</h1><div class="highlight"><pre>
                              <span class="s2">&quot;the underlying hdf5 file is not writable&quot;</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_check_attributes</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">node</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Checks file node-specific attributes.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Checks file node-specific attributes.</span>
 
 <span class="sd">        Checks for the presence and validity</span>
 <span class="sd">        of the system attributes &#39;NODE_TYPE&#39; and &#39;NODE_TYPE_VERSION&#39;</span>
@@ -543,7 +548,7 @@ <h1>Source code for tables.nodes.filenode</h1><div class="highlight"><pre>
                 <span class="sa">f</span><span class="s2">&quot;unsupported type version of node object: </span><span class="si">{</span><span class="n">ltypever</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_append_zeros</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">size</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;_append_zeros(size) -&gt; None.  Appends a string of zeros.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;_append_zeros(size) -&gt; None.  Appends a string of zeros.</span>
 
 <span class="sd">        Appends a string of &#39;size&#39; zeros to the array,</span>
 <span class="sd">        without moving the file pointer.</span>
@@ -560,7 +565,7 @@ <h1>Source code for tables.nodes.filenode</h1><div class="highlight"><pre>
 
 
 <span class="k">class</span> <span class="nc">FileNodeMixin</span><span class="p">:</span>
-    <span class="sd">&quot;&quot;&quot;Mixin class for FileNode objects.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Mixin class for FileNode objects.</span>
 
 <span class="sd">    It provides access to the attribute set of the node that becomes</span>
 <span class="sd">    available via the attrs property. You can add attributes there, but</span>
@@ -571,18 +576,18 @@ <h1>Source code for tables.nodes.filenode</h1><div class="highlight"><pre>
 
     <span class="c1"># The attribute set property methods.</span>
     <span class="k">def</span> <span class="nf">_get_attrs</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Returns the attribute set of the file node.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Returns the attribute set of the file node.&quot;&quot;&quot;</span>
 
         <span class="c1"># sefl._checkClosed()</span>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_node</span><span class="o">.</span><span class="n">attrs</span>
 
     <span class="k">def</span> <span class="nf">_set_attrs</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;set_attrs(string) -&gt; None.  Raises ValueError.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;set_attrs(string) -&gt; None.  Raises ValueError.&quot;&quot;&quot;</span>
 
         <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s2">&quot;changing the whole attribute set is not allowed&quot;</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_del_attrs</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;del_attrs() -&gt; None.  Raises ValueError.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;del_attrs() -&gt; None.  Raises ValueError.&quot;&quot;&quot;</span>
 
         <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span><span class="s2">&quot;deleting the whole attribute set is not allowed&quot;</span><span class="p">)</span>
 
@@ -593,7 +598,7 @@ <h1>Source code for tables.nodes.filenode</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="ROFileNode"><a class="viewcode-back" href="../../../usersguide/libref/filenode_classes.html#tables.nodes.filenode.ROFileNode">[docs]</a><span class="k">class</span> <span class="nc">ROFileNode</span><span class="p">(</span><span class="n">FileNodeMixin</span><span class="p">,</span> <span class="n">RawPyTablesIO</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Creates a new read-only file node.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Creates a new read-only file node.</span>
 
 <span class="sd">    Creates a new read-only file node associated with the specified</span>
 <span class="sd">    PyTables node, providing a standard Python file interface to it.</span>
@@ -632,7 +637,7 @@ <h1>Source code for tables.nodes.filenode</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="RAFileNode"><a class="viewcode-back" href="../../../usersguide/libref/filenode_classes.html#tables.nodes.filenode.RAFileNode">[docs]</a><span class="k">class</span> <span class="nc">RAFileNode</span><span class="p">(</span><span class="n">FileNodeMixin</span><span class="p">,</span> <span class="n">RawPyTablesIO</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Creates a new read-write file node.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Creates a new read-write file node.</span>
 
 <span class="sd">    The first syntax opens the specified PyTables node, while the</span>
 <span class="sd">    second one creates a new node in the specified PyTables file.</span>
@@ -719,7 +724,7 @@ <h1>Source code for tables.nodes.filenode</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_node</span>
 
     <span class="k">def</span> <span class="nf">_set_attributes</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">node</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;_set_attributes(node) -&gt; None.  Adds file node-specific attributes.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;_set_attributes(node) -&gt; None.  Adds file node-specific attributes.</span>
 
 <span class="sd">        Sets the system attributes &#39;NODE_TYPE&#39; and &#39;NODE_TYPE_VERSION&#39;</span>
 <span class="sd">        in the specified PyTables node (leaf).</span>
@@ -732,7 +737,7 @@ <h1>Source code for tables.nodes.filenode</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="new_node"><a class="viewcode-back" href="../../../usersguide/libref/filenode_classes.html#tables.nodes.filenode.new_node">[docs]</a><span class="k">def</span> <span class="nf">new_node</span><span class="p">(</span><span class="n">h5file</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Creates a new file node object in the specified PyTables file object.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Creates a new file node object in the specified PyTables file object.</span>
 
 <span class="sd">    Additional named arguments where and name must be passed to specify where</span>
 <span class="sd">    the file node is to be created. Other named arguments such as title and</span>
@@ -747,7 +752,7 @@ <h1>Source code for tables.nodes.filenode</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="open_node"><a class="viewcode-back" href="../../../usersguide/libref/filenode_classes.html#tables.nodes.filenode.open_node">[docs]</a><span class="k">def</span> <span class="nf">open_node</span><span class="p">(</span><span class="n">node</span><span class="p">,</span> <span class="n">mode</span><span class="o">=</span><span class="s1">&#39;r&#39;</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Opens an existing file node.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Opens an existing file node.</span>
 
 <span class="sd">    Returns a file node object from the existing specified PyTables</span>
 <span class="sd">    node. If mode is not specified or it is &#39;r&#39;, the file can only be</span>
@@ -767,7 +772,7 @@ <h1>Source code for tables.nodes.filenode</h1><div class="highlight"><pre>
 
 <div class="viewcode-block" id="save_to_filenode"><a class="viewcode-back" href="../../../usersguide/libref/filenode_classes.html#tables.nodes.filenode.save_to_filenode">[docs]</a><span class="k">def</span> <span class="nf">save_to_filenode</span><span class="p">(</span><span class="n">h5file</span><span class="p">,</span> <span class="n">filename</span><span class="p">,</span> <span class="n">where</span><span class="p">,</span> <span class="n">name</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">overwrite</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span>
                      <span class="n">title</span><span class="o">=</span><span class="s2">&quot;&quot;</span><span class="p">,</span> <span class="n">filters</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Save a file&#39;s contents to a filenode inside a PyTables file.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Save a file&#39;s contents to a filenode inside a PyTables file.</span>
 
 <span class="sd">    .. versionadded:: 3.2</span>
 
@@ -867,7 +872,7 @@ <h1>Source code for tables.nodes.filenode</h1><div class="highlight"><pre>
 
 <div class="viewcode-block" id="read_from_filenode"><a class="viewcode-back" href="../../../usersguide/libref/filenode_classes.html#tables.nodes.filenode.read_from_filenode">[docs]</a><span class="k">def</span> <span class="nf">read_from_filenode</span><span class="p">(</span><span class="n">h5file</span><span class="p">,</span> <span class="n">filename</span><span class="p">,</span> <span class="n">where</span><span class="p">,</span> <span class="n">name</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">overwrite</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span>
                        <span class="n">create_target</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
-    <span class="sa">r</span><span class="sd">&quot;&quot;&quot;Read a filenode from a PyTables file and write its contents to a file.</span>
+<span class="w">    </span><span class="sa">r</span><span class="sd">&quot;&quot;&quot;Read a filenode from a PyTables file and write its contents to a file.</span>
 
 <span class="sd">    .. versionadded:: 3.2</span>
 
diff --git a/_modules/tables/table.html b/_modules/tables/table.html
index 8e4a0f0..7ac245b 100644
--- a/_modules/tables/table.html
+++ b/_modules/tables/table.html
@@ -3,7 +3,7 @@
 <head>
   <meta charset="utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>tables.table &mdash; PyTables 3.8.1.dev0 documentation</title>
+  <title>tables.table &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/graphviz.css" type="text/css" />
@@ -16,6 +16,7 @@
         <script src="../../_static/underscore.js"></script>
         <script src="../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../_static/doctools.js"></script>
+        <script src="../../_static/sphinx_highlight.js"></script>
     <script src="../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../genindex.html" />
     <link rel="search" title="Search" href="../../search.html" />
@@ -38,15 +39,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../index.html">
-            <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../index.html">
+            
+              <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.8.1.dev0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -78,9 +83,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../index.html">Module code</a> &raquo;</li>
-      <li>tables.table</li>
+      <li><a href="../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../index.html">Module code</a></li>
+      <li class="breadcrumb-item active">tables.table</li>
       <li class="wy-breadcrumbs-aside">
       </li>
   </ul>
@@ -411,17 +416,17 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
 
 
 <span class="k">class</span> <span class="nc">_ColIndexes</span><span class="p">(</span><span class="nb">dict</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Provides a nice representation of column indexes.&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Provides a nice representation of column indexes.&quot;&quot;&quot;</span>
 
     <span class="k">def</span> <span class="fm">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Gives a detailed Description column representation.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Gives a detailed Description column representation.&quot;&quot;&quot;</span>
 
         <span class="n">rep</span> <span class="o">=</span> <span class="p">[</span><span class="sa">f</span><span class="s1">&#39;  </span><span class="se">\&quot;</span><span class="si">{</span><span class="n">k</span><span class="si">}</span><span class="se">\&quot;</span><span class="s1">: </span><span class="si">{</span><span class="n">v</span><span class="si">}</span><span class="s1">&#39;</span> <span class="k">for</span> <span class="n">k</span><span class="p">,</span> <span class="n">v</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">items</span><span class="p">()]</span>
         <span class="k">return</span> <span class="s1">&#39;{</span><span class="se">\n</span><span class="s1">  </span><span class="si">%s</span><span class="s1">}&#39;</span> <span class="o">%</span> <span class="p">(</span><span class="s1">&#39;,</span><span class="se">\n</span><span class="s1">  &#39;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">rep</span><span class="p">))</span>
 
 
 <div class="viewcode-block" id="Table"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Table">[docs]</a><span class="k">class</span> <span class="nc">Table</span><span class="p">(</span><span class="n">tableextension</span><span class="o">.</span><span class="n">Table</span><span class="p">,</span> <span class="n">Leaf</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;This class represents heterogeneous datasets in an HDF5 file.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;This class represents heterogeneous datasets in an HDF5 file.</span>
 
 <span class="sd">    Tables are leaves (see the Leaf class in :ref:`LeafClassDescr`) whose data</span>
 <span class="sd">    consists of a unidimensional sequence of *rows*, where each row contains</span>
@@ -591,42 +596,42 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
 
     <span class="nd">@lazyattr</span>
     <span class="k">def</span> <span class="nf">row</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The associated Row instance (see :ref:`RowClassDescr`).&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The associated Row instance (see :ref:`RowClassDescr`).&quot;&quot;&quot;</span>
 
         <span class="k">return</span> <span class="n">tableextension</span><span class="o">.</span><span class="n">Row</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
 
     <span class="nd">@lazyattr</span>
     <span class="k">def</span> <span class="nf">dtype</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The NumPy ``dtype`` that most closely matches this table.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The NumPy ``dtype`` that most closely matches this table.&quot;&quot;&quot;</span>
 
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">description</span><span class="o">.</span><span class="n">_v_dtype</span>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">shape</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The shape of this table.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The shape of this table.&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">nrows</span><span class="p">,)</span>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">rowsize</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The size in bytes of each row in the table.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The size in bytes of each row in the table.&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">description</span><span class="o">.</span><span class="n">_v_dtype</span><span class="o">.</span><span class="n">itemsize</span>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">size_in_memory</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The size of this table&#39;s data in bytes when it is fully loaded into</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The size of this table&#39;s data in bytes when it is fully loaded into</span>
 <span class="sd">        memory.  This may be used in combination with size_on_disk to calculate</span>
 <span class="sd">        the compression ratio of the data.&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">nrows</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">rowsize</span>
 
     <span class="nd">@lazyattr</span>
     <span class="k">def</span> <span class="nf">_v_iobuf</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;A buffer for doing I/O.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;A buffer for doing I/O.&quot;&quot;&quot;</span>
 
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_container</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">nrowsinbuf</span><span class="p">)</span>
 
     <span class="nd">@lazyattr</span>
     <span class="k">def</span> <span class="nf">_v_wdflts</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The defaults for writing in recarray format.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The defaults for writing in recarray format.&quot;&quot;&quot;</span>
 
         <span class="c1"># First, do a check to see whether we need to set default values</span>
         <span class="c1"># different from 0 or not.</span>
@@ -644,7 +649,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
 
     <span class="nd">@lazyattr</span>
     <span class="k">def</span> <span class="nf">_colunaligned</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The pathnames of unaligned, *unidimensional* columns.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The pathnames of unaligned, *unidimensional* columns.&quot;&quot;&quot;</span>
         <span class="n">colunaligned</span><span class="p">,</span> <span class="n">rarr</span> <span class="o">=</span> <span class="p">[],</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_container</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
         <span class="k">for</span> <span class="n">colpathname</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">colpathnames</span><span class="p">:</span>
             <span class="n">carr</span> <span class="o">=</span> <span class="n">get_nested_field</span><span class="p">(</span><span class="n">rarr</span><span class="p">,</span> <span class="n">colpathname</span><span class="p">)</span>
@@ -665,7 +670,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">autoindex</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Automatically keep column indexes up to date?</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Automatically keep column indexes up to date?</span>
 
 <span class="sd">        Setting this value states whether existing indexes should be</span>
 <span class="sd">        automatically updated after an append operation or recomputed</span>
@@ -709,21 +714,21 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">indexedcolpathnames</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;List of pathnames of indexed columns in the table.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;List of pathnames of indexed columns in the table.&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="p">[</span><span class="n">_colpname</span>
                 <span class="k">for</span> <span class="n">_colpname</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">colpathnames</span>
                 <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">colindexed</span><span class="p">[</span><span class="n">_colpname</span><span class="p">]]</span>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">colindexes</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;A dictionary with the indexes of the indexed columns.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;A dictionary with the indexes of the indexed columns.&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="n">_ColIndexes</span><span class="p">((</span><span class="n">_colpname</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">cols</span><span class="o">.</span><span class="n">_f_col</span><span class="p">(</span><span class="n">_colpname</span><span class="p">)</span><span class="o">.</span><span class="n">index</span><span class="p">)</span>
                            <span class="k">for</span> <span class="n">_colpname</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">colpathnames</span>
                            <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">colindexed</span><span class="p">[</span><span class="n">_colpname</span><span class="p">])</span>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">_dirtyindexes</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Whether some index in table is dirty.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Whether some index in table is dirty.&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_condition_cache</span><span class="o">.</span><span class="n">_nailcount</span> <span class="o">&gt;</span> <span class="mi">0</span>
 
     <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">parentnode</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span>
@@ -732,50 +737,50 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
                  <span class="n">byteorder</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">_log</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> <span class="n">track_times</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_new</span> <span class="o">=</span> <span class="n">new</span> <span class="o">=</span> <span class="n">description</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Is this the first time the node has been created?&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Is this the first time the node has been created?&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_new_title</span> <span class="o">=</span> <span class="n">title</span>
-        <span class="sd">&quot;&quot;&quot;New title for this node.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;New title for this node.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_new_filters</span> <span class="o">=</span> <span class="n">filters</span>
-        <span class="sd">&quot;&quot;&quot;New filter properties for this node.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;New filter properties for this node.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">extdim</span> <span class="o">=</span> <span class="mi">0</span>   <span class="c1"># Tables only have one dimension currently</span>
-        <span class="sd">&quot;&quot;&quot;The index of the enlargeable dimension (always 0 for tables).&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The index of the enlargeable dimension (always 0 for tables).&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_recarray</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;A structured array to be stored in the table.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;A structured array to be stored in the table.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_rabyteorder</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;The computed byteorder of the self._v_recarray.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The computed byteorder of the self._v_recarray.&quot;&quot;&quot;</span>
         <span class="k">if</span> <span class="n">expectedrows</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
             <span class="n">expectedrows</span> <span class="o">=</span> <span class="n">parentnode</span><span class="o">.</span><span class="n">_v_file</span><span class="o">.</span><span class="n">params</span><span class="p">[</span><span class="s1">&#39;EXPECTED_ROWS_TABLE&#39;</span><span class="p">]</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_expectedrows</span> <span class="o">=</span> <span class="n">expectedrows</span>
-        <span class="sd">&quot;&quot;&quot;The expected number of rows to be stored in the table.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The expected number of rows to be stored in the table.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">nrows</span> <span class="o">=</span> <span class="n">SizeType</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
-        <span class="sd">&quot;&quot;&quot;The current number of rows in the table.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The current number of rows in the table.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">description</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;A Description instance (see :ref:`DescriptionClassDescr`)</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;A Description instance (see :ref:`DescriptionClassDescr`)</span>
 <span class="sd">        reflecting the structure of the table.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_time64colnames</span> <span class="o">=</span> <span class="p">[]</span>
-        <span class="sd">&quot;&quot;&quot;The names of ``Time64`` columns.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The names of ``Time64`` columns.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_strcolnames</span> <span class="o">=</span> <span class="p">[]</span>
-        <span class="sd">&quot;&quot;&quot;The names of ``String`` columns.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The names of ``String`` columns.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_colenums</span> <span class="o">=</span> <span class="p">{}</span>
-        <span class="sd">&quot;&quot;&quot;Maps the name of an enumerated column to its ``Enum`` instance.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Maps the name of an enumerated column to its ``Enum`` instance.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_chunkshape</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Private storage for the `chunkshape` property of the leaf.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Private storage for the `chunkshape` property of the leaf.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">indexed</span> <span class="o">=</span> <span class="kc">False</span>
-        <span class="sd">&quot;&quot;&quot;Does this table have any indexed columns?&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Does this table have any indexed columns?&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_indexedrows</span> <span class="o">=</span> <span class="mi">0</span>
-        <span class="sd">&quot;&quot;&quot;Number of rows indexed in disk.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Number of rows indexed in disk.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_unsaved_indexedrows</span> <span class="o">=</span> <span class="mi">0</span>
-        <span class="sd">&quot;&quot;&quot;Number of rows indexed in memory but still not in disk.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Number of rows indexed in memory but still not in disk.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_listoldindexes</span> <span class="o">=</span> <span class="p">[]</span>
-        <span class="sd">&quot;&quot;&quot;The list of columns with old indexes.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The list of columns with old indexes.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_autoindex</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Private variable that caches the value for autoindex.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Private variable that caches the value for autoindex.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">colnames</span> <span class="o">=</span> <span class="p">[]</span>
-        <span class="sd">&quot;&quot;&quot;A list containing the names of *top-level* columns in the table.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;A list containing the names of *top-level* columns in the table.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">colpathnames</span> <span class="o">=</span> <span class="p">[]</span>
-        <span class="sd">&quot;&quot;&quot;A list containing the pathnames of *bottom-level* columns in the</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;A list containing the pathnames of *bottom-level* columns in the</span>
 <span class="sd">        table.</span>
 
 <span class="sd">        These are the leaf columns obtained when walking the</span>
@@ -784,50 +789,50 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
 <span class="sd">        their pathname.</span>
 <span class="sd">        &quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">colinstances</span> <span class="o">=</span> <span class="p">{}</span>
-        <span class="sd">&quot;&quot;&quot;Maps the name of a column to its Column (see</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Maps the name of a column to its Column (see</span>
 <span class="sd">        :ref:`ColumnClassDescr`) or Cols (see :ref:`ColsClassDescr`)</span>
 <span class="sd">        instance.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">coldescrs</span> <span class="o">=</span> <span class="p">{}</span>
-        <span class="sd">&quot;&quot;&quot;Maps the name of a column to its Col description (see</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Maps the name of a column to its Col description (see</span>
 <span class="sd">        :ref:`ColClassDescr`).&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">coltypes</span> <span class="o">=</span> <span class="p">{}</span>
-        <span class="sd">&quot;&quot;&quot;Maps the name of a column to its PyTables data type.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Maps the name of a column to its PyTables data type.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">coldtypes</span> <span class="o">=</span> <span class="p">{}</span>
-        <span class="sd">&quot;&quot;&quot;Maps the name of a column to its NumPy data type.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Maps the name of a column to its NumPy data type.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">coldflts</span> <span class="o">=</span> <span class="p">{}</span>
-        <span class="sd">&quot;&quot;&quot;Maps the name of a column to its default value.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Maps the name of a column to its default value.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">colindexed</span> <span class="o">=</span> <span class="p">{}</span>
-        <span class="sd">&quot;&quot;&quot;Is the column which name is used as a key indexed?&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Is the column which name is used as a key indexed?&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_use_index</span> <span class="o">=</span> <span class="kc">False</span>
-        <span class="sd">&quot;&quot;&quot;Whether an index can be used or not in a search.  Boolean.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Whether an index can be used or not in a search.  Boolean.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_where_condition</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Condition function and argument list for selection of values.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Condition function and argument list for selection of values.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_seqcache_key</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;The key under which to save a query&#39;s results (list of row indexes)</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The key under which to save a query&#39;s results (list of row indexes)</span>
 <span class="sd">        or None to not save.&quot;&quot;&quot;</span>
         <span class="n">max_slots</span> <span class="o">=</span> <span class="n">parentnode</span><span class="o">.</span><span class="n">_v_file</span><span class="o">.</span><span class="n">params</span><span class="p">[</span><span class="s1">&#39;COND_CACHE_SLOTS&#39;</span><span class="p">]</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_condition_cache</span> <span class="o">=</span> <span class="n">CacheDict</span><span class="p">(</span><span class="n">max_slots</span><span class="p">)</span>
-        <span class="sd">&quot;&quot;&quot;Cache of already compiled conditions.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Cache of already compiled conditions.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_exprvars_cache</span> <span class="o">=</span> <span class="p">{}</span>
-        <span class="sd">&quot;&quot;&quot;Cache of variables participating in numexpr expressions.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Cache of variables participating in numexpr expressions.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_enabled_indexing_in_queries</span> <span class="o">=</span> <span class="kc">True</span>
-        <span class="sd">&quot;&quot;&quot;Is indexing enabled in queries?  *Use only for testing.*&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Is indexing enabled in queries?  *Use only for testing.*&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_empty_array_cache</span> <span class="o">=</span> <span class="p">{}</span>
-        <span class="sd">&quot;&quot;&quot;Cache of empty arrays.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Cache of empty arrays.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_dtype</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;The NumPy datatype fopr this table.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The NumPy datatype fopr this table.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">cols</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;</span>
 <span class="sd">        A Cols instance that provides *natural naming* access to non-nested</span>
 <span class="sd">        (Column, see :ref:`ColumnClassDescr`) and nested (Cols, see</span>
 <span class="sd">        :ref:`ColsClassDescr`) columns.</span>
 <span class="sd">        &quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_dirtycache</span> <span class="o">=</span> <span class="kc">True</span>
-        <span class="sd">&quot;&quot;&quot;Whether the data caches are dirty or not. Initially set to yes.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Whether the data caches are dirty or not. Initially set to yes.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_descflavor</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Temporarily keeps the flavor of a description with data.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Temporarily keeps the flavor of a description with data.&quot;&quot;&quot;</span>
 
         <span class="c1"># Initialize this object in case is a new Table</span>
 
@@ -974,7 +979,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
             <span class="bp">self</span><span class="o">.</span><span class="n">_autoindex</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">autoindex</span>
 
     <span class="k">def</span> <span class="nf">_calc_nrowsinbuf</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Calculate the number of rows that fits on a PyTables buffer.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Calculate the number of rows that fits on a PyTables buffer.&quot;&quot;&quot;</span>
 
         <span class="n">params</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_file</span><span class="o">.</span><span class="n">params</span>
         <span class="c1"># Compute the nrowsinbuf</span>
@@ -1025,21 +1030,21 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
             <span class="k">return</span> <span class="n">arr</span>
 
     <span class="k">def</span> <span class="nf">_get_container</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">shape</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get the appropriate buffer for data depending on table</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get the appropriate buffer for data depending on table</span>
 <span class="sd">        nestedness.&quot;&quot;&quot;</span>
 
         <span class="c1"># This is *much* faster than the numpy.rec.array counterpart</span>
         <span class="k">return</span> <span class="n">np</span><span class="o">.</span><span class="n">empty</span><span class="p">(</span><span class="n">shape</span><span class="o">=</span><span class="n">shape</span><span class="p">,</span> <span class="n">dtype</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_v_dtype</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_get_type_col_names</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">type_</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Returns a list containing &#39;type_&#39; column names.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Returns a list containing &#39;type_&#39; column names.&quot;&quot;&quot;</span>
 
         <span class="k">return</span> <span class="p">[</span><span class="n">colobj</span><span class="o">.</span><span class="n">_v_pathname</span>
                 <span class="k">for</span> <span class="n">colobj</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">description</span><span class="o">.</span><span class="n">_f_walk</span><span class="p">(</span><span class="s1">&#39;Col&#39;</span><span class="p">)</span>
                 <span class="k">if</span> <span class="n">colobj</span><span class="o">.</span><span class="n">type</span> <span class="o">==</span> <span class="n">type_</span><span class="p">]</span>
 
     <span class="k">def</span> <span class="nf">_get_enum_map</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Return mapping from enumerated column names to `Enum` instances.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Return mapping from enumerated column names to `Enum` instances.&quot;&quot;&quot;</span>
 
         <span class="n">enumMap</span> <span class="o">=</span> <span class="p">{}</span>
         <span class="k">for</span> <span class="n">colobj</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">description</span><span class="o">.</span><span class="n">_f_walk</span><span class="p">(</span><span class="s1">&#39;Col&#39;</span><span class="p">):</span>
@@ -1048,7 +1053,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">enumMap</span>
 
     <span class="k">def</span> <span class="nf">_g_create</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create a new table on disk.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create a new table on disk.&quot;&quot;&quot;</span>
 
         <span class="c1"># Warning against assigning too much columns...</span>
         <span class="c1"># F. Alted 2005-06-05</span>
@@ -1104,7 +1109,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_objectid</span>
 
     <span class="k">def</span> <span class="nf">_g_open</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Opens a table from disk and read the metadata on it.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Opens a table from disk and read the metadata on it.</span>
 
 <span class="sd">        Creates an user description on the flight to easy the access to</span>
 <span class="sd">        the actual data.</span>
@@ -1163,7 +1168,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_objectid</span>
 
     <span class="k">def</span> <span class="nf">_cache_description_data</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Cache some data which is already in the description.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Cache some data which is already in the description.</span>
 
 <span class="sd">        Some information is extracted from `self.description` to build</span>
 <span class="sd">        some useful (but redundant) structures:</span>
@@ -1206,7 +1211,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_dtype</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">description</span><span class="o">.</span><span class="n">_v_dtype</span>
 
     <span class="k">def</span> <span class="nf">_get_column_instance</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">colpathname</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get the instance of the column with the given `colpathname`.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get the instance of the column with the given `colpathname`.</span>
 
 <span class="sd">        If the column does not exist in the table, a `KeyError` is</span>
 <span class="sd">        raised.</span>
@@ -1223,7 +1228,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
     <span class="n">_check_column</span> <span class="o">=</span> <span class="n">_get_column_instance</span>
 
     <span class="k">def</span> <span class="nf">_disable_indexing_in_queries</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Force queries not to use indexing.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Force queries not to use indexing.</span>
 
 <span class="sd">        *Use only for testing.*</span>
 
@@ -1237,7 +1242,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">_enabled_indexing_in_queries</span> <span class="o">=</span> <span class="kc">False</span>
 
     <span class="k">def</span> <span class="nf">_enable_indexing_in_queries</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Allow queries to use indexing.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Allow queries to use indexing.</span>
 
 <span class="sd">        *Use only for testing.*</span>
 
@@ -1249,7 +1254,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">_enabled_indexing_in_queries</span> <span class="o">=</span> <span class="kc">True</span>
 
     <span class="k">def</span> <span class="nf">_required_expr_vars</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">expression</span><span class="p">,</span> <span class="n">uservars</span><span class="p">,</span> <span class="n">depth</span><span class="o">=</span><span class="mi">1</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get the variables required by the `expression`.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get the variables required by the `expression`.</span>
 
 <span class="sd">        A new dictionary defining the variables used in the `expression`</span>
 <span class="sd">        is returned.  Required variables are first looked up in the</span>
@@ -1353,7 +1358,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">reqvars</span>
 
     <span class="k">def</span> <span class="nf">_get_condition_key</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">condition</span><span class="p">,</span> <span class="n">condvars</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get the condition cache key for `condition` with `condvars`.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get the condition cache key for `condition` with `condvars`.</span>
 
 <span class="sd">        Currently, the key is a tuple of `condition`, column variables</span>
 <span class="sd">        names, normal variables names, column paths and variable paths</span>
@@ -1384,7 +1389,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">condkey</span>
 
     <span class="k">def</span> <span class="nf">_compile_condition</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">condition</span><span class="p">,</span> <span class="n">condvars</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Compile the `condition` and extract usable index conditions.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Compile the `condition` and extract usable index conditions.</span>
 
 <span class="sd">        This method returns an instance of ``CompiledCondition``.  See</span>
 <span class="sd">        the ``compile_condition()`` function in the ``conditions``</span>
@@ -1436,7 +1441,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">compiled</span><span class="o">.</span><span class="n">with_replaced_vars</span><span class="p">(</span><span class="n">condvars</span><span class="p">)</span>
 
 <div class="viewcode-block" id="Table.will_query_use_indexing"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Table.will_query_use_indexing">[docs]</a>    <span class="k">def</span> <span class="nf">will_query_use_indexing</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">condition</span><span class="p">,</span> <span class="n">condvars</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Will a query for the condition use indexing?</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Will a query for the condition use indexing?</span>
 
 <span class="sd">        The meaning of the condition and *condvars* arguments is the same as in</span>
 <span class="sd">        the :meth:`Table.where` method. If condition can use indexing, this</span>
@@ -1458,7 +1463,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
 
 <div class="viewcode-block" id="Table.where"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Table.where">[docs]</a>    <span class="k">def</span> <span class="nf">where</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">condition</span><span class="p">,</span> <span class="n">condvars</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
               <span class="n">start</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">stop</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">step</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sa">r</span><span class="sd">&quot;&quot;&quot;Iterate over values fulfilling a condition.</span>
+<span class="w">        </span><span class="sa">r</span><span class="sd">&quot;&quot;&quot;Iterate over values fulfilling a condition.</span>
 
 <span class="sd">        This method returns a Row iterator (see :ref:`RowClassDescr`) which</span>
 <span class="sd">        only selects rows in the table that satisfy the given condition (an</span>
@@ -1551,7 +1556,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_where</span><span class="p">(</span><span class="n">condition</span><span class="p">,</span> <span class="n">condvars</span><span class="p">,</span> <span class="n">start</span><span class="p">,</span> <span class="n">stop</span><span class="p">,</span> <span class="n">step</span><span class="p">)</span></div>
 
     <span class="k">def</span> <span class="nf">_where</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">condition</span><span class="p">,</span> <span class="n">condvars</span><span class="p">,</span> <span class="n">start</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">stop</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">step</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Low-level counterpart of `self.where()`.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Low-level counterpart of `self.where()`.&quot;&quot;&quot;</span>
 
         <span class="k">if</span> <span class="n">profile</span><span class="p">:</span>
             <span class="n">tref</span> <span class="o">=</span> <span class="n">clock</span><span class="p">()</span>
@@ -1591,7 +1596,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
 
 <div class="viewcode-block" id="Table.read_where"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Table.read_where">[docs]</a>    <span class="k">def</span> <span class="nf">read_where</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">condition</span><span class="p">,</span> <span class="n">condvars</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">field</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
                    <span class="n">start</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">stop</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">step</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Read table data fulfilling the given *condition*.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Read table data fulfilling the given *condition*.</span>
 
 <span class="sd">        This method is similar to :meth:`Table.read`, having their common</span>
 <span class="sd">        arguments and return values the same meanings. However, only the rows</span>
@@ -1617,7 +1622,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
 
 <div class="viewcode-block" id="Table.append_where"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Table.append_where">[docs]</a>    <span class="k">def</span> <span class="nf">append_where</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">dstTable</span><span class="p">,</span> <span class="n">condition</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">condvars</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
                      <span class="n">start</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">stop</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">step</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Append rows fulfilling the condition to the dstTable table.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Append rows fulfilling the condition to the dstTable table.</span>
 
 <span class="sd">        dstTable must be capable of taking the rows resulting from the query,</span>
 <span class="sd">        i.e. it must have columns with the expected names and compatible</span>
@@ -1656,7 +1661,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
 
 <div class="viewcode-block" id="Table.get_where_list"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Table.get_where_list">[docs]</a>    <span class="k">def</span> <span class="nf">get_where_list</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">condition</span><span class="p">,</span> <span class="n">condvars</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">sort</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span>
                        <span class="n">start</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">stop</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">step</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get the row coordinates fulfilling the given condition.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get the row coordinates fulfilling the given condition.</span>
 
 <span class="sd">        The coordinates are returned as a list of the current flavor.  sort</span>
 <span class="sd">        means that you want to retrieve the coordinates ordered. The default is</span>
@@ -1679,7 +1684,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">internal_to_flavor</span><span class="p">(</span><span class="n">coords</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">flavor</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="Table.itersequence"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Table.itersequence">[docs]</a>    <span class="k">def</span> <span class="nf">itersequence</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">sequence</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Iterate over a sequence of row coordinates.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Iterate over a sequence of row coordinates.&quot;&quot;&quot;</span>
 
         <span class="k">if</span> <span class="ow">not</span> <span class="nb">hasattr</span><span class="p">(</span><span class="n">sequence</span><span class="p">,</span> <span class="s1">&#39;__getitem__&#39;</span><span class="p">):</span>
             <span class="k">raise</span> <span class="ne">TypeError</span><span class="p">(</span><span class="s2">&quot;Wrong &#39;sequence&#39; parameter type. Only sequences &quot;</span>
@@ -1725,7 +1730,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
 
 <div class="viewcode-block" id="Table.itersorted"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Table.itersorted">[docs]</a>    <span class="k">def</span> <span class="nf">itersorted</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">sortby</span><span class="p">,</span> <span class="n">checkCSI</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span>
                    <span class="n">start</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">stop</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">step</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Iterate table data following the order of the index of sortby</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Iterate table data following the order of the index of sortby</span>
 <span class="sd">        column.</span>
 
 <span class="sd">        The sortby column must have associated a full index.  If you want to</span>
@@ -1755,7 +1760,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
 
 <div class="viewcode-block" id="Table.read_sorted"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Table.read_sorted">[docs]</a>    <span class="k">def</span> <span class="nf">read_sorted</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">sortby</span><span class="p">,</span> <span class="n">checkCSI</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">field</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
                     <span class="n">start</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">stop</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">step</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Read table data following the order of the index of sortby column.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Read table data following the order of the index of sortby column.</span>
 
 <span class="sd">        The sortby column must have associated a full index.  If you want to</span>
 <span class="sd">        ensure a fully sorted order, the index must be a CSI one.  You may want</span>
@@ -1782,7 +1787,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">read_coordinates</span><span class="p">(</span><span class="n">coords</span><span class="p">,</span> <span class="n">field</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="Table.iterrows"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Table.iterrows">[docs]</a>    <span class="k">def</span> <span class="nf">iterrows</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">start</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">stop</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">step</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Iterate over the table using a Row instance.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Iterate over the table using a Row instance.</span>
 
 <span class="sd">        If a range is not supplied, *all the rows* in the table are iterated</span>
 <span class="sd">        upon - you can also use the :meth:`Table.__iter__` special method for</span>
@@ -1823,7 +1828,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">row</span><span class="o">.</span><span class="n">_iter</span><span class="p">(</span><span class="n">start</span><span class="p">,</span> <span class="n">stop</span><span class="p">,</span> <span class="n">step</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="Table.__iter__"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Table.__iter__">[docs]</a>    <span class="k">def</span> <span class="fm">__iter__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Iterate over the table using a Row instance.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Iterate over the table using a Row instance.</span>
 
 <span class="sd">        This is equivalent to calling :meth:`Table.iterrows` with default</span>
 <span class="sd">        arguments, i.e. it iterates over *all the rows* in the table.</span>
@@ -1849,7 +1854,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">iterrows</span><span class="p">()</span></div>
 
     <span class="k">def</span> <span class="nf">_read</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">start</span><span class="p">,</span> <span class="n">stop</span><span class="p">,</span> <span class="n">step</span><span class="p">,</span> <span class="n">field</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">out</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Read a range of rows and return an in-memory object.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Read a range of rows and return an in-memory object.&quot;&quot;&quot;</span>
 
         <span class="n">select_field</span> <span class="o">=</span> <span class="kc">None</span>
         <span class="k">if</span> <span class="n">field</span><span class="p">:</span>
@@ -1920,7 +1925,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
             <span class="k">return</span> <span class="n">result</span>
 
 <div class="viewcode-block" id="Table.read"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Table.read">[docs]</a>    <span class="k">def</span> <span class="nf">read</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">start</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">stop</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">step</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">field</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">out</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get data in the table as a (record) array.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get data in the table as a (record) array.</span>
 
 <span class="sd">        The start, stop and step parameters can be used to select only</span>
 <span class="sd">        a *range of rows* in the table. Their meanings are the same as</span>
@@ -1993,7 +1998,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">internal_to_flavor</span><span class="p">(</span><span class="n">arr</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">flavor</span><span class="p">)</span></div>
 
     <span class="k">def</span> <span class="nf">_read_coordinates</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">coords</span><span class="p">,</span> <span class="n">field</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Private part of `read_coordinates()` with no flavor conversion.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Private part of `read_coordinates()` with no flavor conversion.&quot;&quot;&quot;</span>
 
         <span class="n">coords</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_point_selection</span><span class="p">(</span><span class="n">coords</span><span class="p">)</span>
 
@@ -2027,7 +2032,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">result</span>
 
 <div class="viewcode-block" id="Table.read_coordinates"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Table.read_coordinates">[docs]</a>    <span class="k">def</span> <span class="nf">read_coordinates</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">coords</span><span class="p">,</span> <span class="n">field</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get a set of rows given their indexes as a (record) array.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get a set of rows given their indexes as a (record) array.</span>
 
 <span class="sd">        This method works much like the :meth:`Table.read` method, but it uses</span>
 <span class="sd">        a sequence (coords) of row indexes to select the wanted columns,</span>
@@ -2043,7 +2048,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">internal_to_flavor</span><span class="p">(</span><span class="n">result</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">flavor</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="Table.get_enum"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Table.get_enum">[docs]</a>    <span class="k">def</span> <span class="nf">get_enum</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">colname</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get the enumerated type associated with the named column.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get the enumerated type associated with the named column.</span>
 
 <span class="sd">        If the column named colname (a string) exists and is of an enumerated</span>
 <span class="sd">        type, the corresponding Enum instance (see :ref:`EnumClassDescr`) is</span>
@@ -2062,7 +2067,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
                 <span class="o">%</span> <span class="p">(</span><span class="n">colname</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_pathname</span><span class="p">))</span></div>
 
 <div class="viewcode-block" id="Table.col"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Table.col">[docs]</a>    <span class="k">def</span> <span class="nf">col</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get a column from the table.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get a column from the table.</span>
 
 <span class="sd">        If a column called name exists in the table, it is read and returned as</span>
 <span class="sd">        a NumPy object. If it does not exist, a KeyError is raised.</span>
@@ -2086,7 +2091,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="n">field</span><span class="o">=</span><span class="n">name</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="Table.__getitem__"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Table.__getitem__">[docs]</a>    <span class="k">def</span> <span class="fm">__getitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get a row or a range of rows from the table.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get a row or a range of rows from the table.</span>
 
 <span class="sd">        If key argument is an integer, the corresponding table row is returned</span>
 <span class="sd">        as a record of the current flavor. If key is a slice, the range of rows</span>
@@ -2146,7 +2151,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
             <span class="k">raise</span> <span class="ne">IndexError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Invalid index or slice: </span><span class="si">{</span><span class="n">key</span><span class="si">!r}</span><span class="s2">&quot;</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="Table.__setitem__"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Table.__setitem__">[docs]</a>    <span class="k">def</span> <span class="fm">__setitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Set a row or a range of rows in the table.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Set a row or a range of rows in the table.</span>
 
 <span class="sd">        It takes different actions depending on the type of the *key*</span>
 <span class="sd">        parameter: if it is an integer, the corresponding table row is</span>
@@ -2218,7 +2223,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
             <span class="k">raise</span> <span class="ne">IndexError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Invalid index or slice: </span><span class="si">{</span><span class="n">key</span><span class="si">!r}</span><span class="s2">&quot;</span><span class="p">)</span></div>
 
     <span class="k">def</span> <span class="nf">_save_buffered_rows</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">wbufRA</span><span class="p">,</span> <span class="n">lenrows</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Update the indexes after a flushing of rows.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Update the indexes after a flushing of rows.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_open_append</span><span class="p">(</span><span class="n">wbufRA</span><span class="p">)</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_append_records</span><span class="p">(</span><span class="n">lenrows</span><span class="p">)</span>
@@ -2235,7 +2240,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
                 <span class="bp">self</span><span class="o">.</span><span class="n">_mark_columns_as_dirty</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">colpathnames</span><span class="p">)</span>
 
 <div class="viewcode-block" id="Table.append"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Table.append">[docs]</a>    <span class="k">def</span> <span class="nf">append</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">rows</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Append a sequence of rows to the end of the table.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Append a sequence of rows to the end of the table.</span>
 
 <span class="sd">        The rows argument may be any object which can be converted to</span>
 <span class="sd">        a structured array compliant with the table structure</span>
@@ -2302,7 +2307,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
             <span class="bp">self</span><span class="o">.</span><span class="n">_save_buffered_rows</span><span class="p">(</span><span class="n">wbufRA</span><span class="p">,</span> <span class="n">lenrows</span><span class="p">)</span></div>
 
     <span class="k">def</span> <span class="nf">_conv_to_recarr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">obj</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Try to convert the object into a recarray.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Try to convert the object into a recarray.&quot;&quot;&quot;</span>
 
         <span class="k">try</span><span class="p">:</span>
             <span class="n">iflavor</span> <span class="o">=</span> <span class="n">flavor_of</span><span class="p">(</span><span class="n">obj</span><span class="p">)</span>
@@ -2327,7 +2332,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">recarr</span>
 
 <div class="viewcode-block" id="Table.modify_coordinates"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Table.modify_coordinates">[docs]</a>    <span class="k">def</span> <span class="nf">modify_coordinates</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">coords</span><span class="p">,</span> <span class="n">rows</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Modify a series of rows in positions specified in coords.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Modify a series of rows in positions specified in coords.</span>
 
 <span class="sd">        The values in the selected rows will be modified with the data given in</span>
 <span class="sd">        rows.  This method returns the number of rows modified.</span>
@@ -2361,7 +2366,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">SizeType</span><span class="p">(</span><span class="n">lcoords</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="Table.modify_rows"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Table.modify_rows">[docs]</a>    <span class="k">def</span> <span class="nf">modify_rows</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">start</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">stop</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">step</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">rows</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Modify a series of rows in the slice [start:stop:step].</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Modify a series of rows in the slice [start:stop:step].</span>
 
 <span class="sd">        The values in the selected rows will be modified with the data given in</span>
 <span class="sd">        rows.  This method returns the number of rows modified.  Should the</span>
@@ -2417,7 +2422,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
 
 <div class="viewcode-block" id="Table.modify_column"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Table.modify_column">[docs]</a>    <span class="k">def</span> <span class="nf">modify_column</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">start</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">stop</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">step</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
                       <span class="n">column</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">colname</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Modify one single column in the row slice [start:stop:step].</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Modify one single column in the row slice [start:stop:step].</span>
 
 <span class="sd">        The colname argument specifies the name of the column in the</span>
 <span class="sd">        table to be modified with the data given in column.  This</span>
@@ -2498,7 +2503,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
 
 <div class="viewcode-block" id="Table.modify_columns"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Table.modify_columns">[docs]</a>    <span class="k">def</span> <span class="nf">modify_columns</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">start</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">stop</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">step</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
                        <span class="n">columns</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">names</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Modify a series of columns in the row slice [start:stop:step].</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Modify a series of columns in the row slice [start:stop:step].</span>
 
 <span class="sd">        The names argument specifies the names of the columns in the</span>
 <span class="sd">        table to be modified with the data given in columns.  This</span>
@@ -2573,7 +2578,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">SizeType</span><span class="p">(</span><span class="n">nrows</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="Table.flush_rows_to_index"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Table.flush_rows_to_index">[docs]</a>    <span class="k">def</span> <span class="nf">flush_rows_to_index</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">_lastrow</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Add remaining rows in buffers to non-dirty indexes.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Add remaining rows in buffers to non-dirty indexes.</span>
 
 <span class="sd">        This can be useful when you have chosen non-automatic indexing</span>
 <span class="sd">        for the table (see the :attr:`Table.autoindex` property in</span>
@@ -2597,7 +2602,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">rowsadded</span></div>
 
     <span class="k">def</span> <span class="nf">_add_rows_to_index</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">colname</span><span class="p">,</span> <span class="n">start</span><span class="p">,</span> <span class="n">nrows</span><span class="p">,</span> <span class="n">lastrow</span><span class="p">,</span> <span class="n">update</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Add more elements to the existing index.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Add more elements to the existing index.&quot;&quot;&quot;</span>
 
         <span class="c1"># This method really belongs to Column, but since it makes extensive</span>
         <span class="c1"># use of the table, it gets dangerous when closing the file, since the</span>
@@ -2626,7 +2631,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">indexedrows</span>
 
 <div class="viewcode-block" id="Table.remove_rows"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Table.remove_rows">[docs]</a>    <span class="k">def</span> <span class="nf">remove_rows</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">start</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">stop</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">step</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Remove a range of rows in the table.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Remove a range of rows in the table.</span>
 
 <span class="sd">        If only start is supplied, that row and all following will be deleted.</span>
 <span class="sd">        If a range is supplied, i.e. both the start and stop parameters are</span>
@@ -2682,7 +2687,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">SizeType</span><span class="p">(</span><span class="n">nrows</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="Table.remove_row"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Table.remove_row">[docs]</a>    <span class="k">def</span> <span class="nf">remove_row</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">n</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Removes a row from the table.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Removes a row from the table.</span>
 
 <span class="sd">        Parameters</span>
 <span class="sd">        ----------</span>
@@ -2724,7 +2729,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
             <span class="bp">self</span><span class="o">.</span><span class="vm">__dict__</span><span class="p">[</span><span class="s1">&#39;row&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">tableextension</span><span class="o">.</span><span class="n">Row</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_g_move</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">newparent</span><span class="p">,</span> <span class="n">newname</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Move this node in the hierarchy.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Move this node in the hierarchy.</span>
 
 <span class="sd">        This overloads the Node._g_move() method.</span>
 
@@ -2760,7 +2765,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="n">_g_remove</span><span class="p">(</span><span class="n">recursive</span><span class="p">,</span> <span class="n">force</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_set_column_indexing</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">colpathname</span><span class="p">,</span> <span class="n">indexed</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Mark the referred column as indexed or non-indexed.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Mark the referred column as indexed or non-indexed.&quot;&quot;&quot;</span>
 
         <span class="n">colindexed</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">colindexed</span>
         <span class="n">isindexed</span><span class="p">,</span> <span class="n">wasindexed</span> <span class="o">=</span> <span class="nb">bool</span><span class="p">(</span><span class="n">indexed</span><span class="p">),</span> <span class="n">colindexed</span><span class="p">[</span><span class="n">colpathname</span><span class="p">]</span>
@@ -2773,7 +2778,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">indexed</span> <span class="o">=</span> <span class="nb">max</span><span class="p">(</span><span class="n">colindexed</span><span class="o">.</span><span class="n">values</span><span class="p">())</span>  <span class="c1"># this is an OR :)</span>
 
     <span class="k">def</span> <span class="nf">_mark_columns_as_dirty</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">colnames</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Mark column indexes in `colnames` as dirty.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Mark column indexes in `colnames` as dirty.&quot;&quot;&quot;</span>
 
         <span class="k">assert</span> <span class="nb">len</span><span class="p">(</span><span class="n">colnames</span><span class="p">)</span> <span class="o">&gt;</span> <span class="mi">0</span>
         <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">indexed</span><span class="p">:</span>
@@ -2785,7 +2790,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
                     <span class="n">col</span><span class="o">.</span><span class="n">index</span><span class="o">.</span><span class="n">dirty</span> <span class="o">=</span> <span class="kc">True</span>
 
     <span class="k">def</span> <span class="nf">_reindex</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">colnames</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Re-index columns in `colnames` if automatic indexing is true.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Re-index columns in `colnames` if automatic indexing is true.&quot;&quot;&quot;</span>
 
         <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">indexed</span><span class="p">:</span>
             <span class="n">colindexed</span><span class="p">,</span> <span class="n">cols</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">colindexed</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">cols</span>
@@ -2803,7 +2808,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
             <span class="bp">self</span><span class="o">.</span><span class="n">_dirtycache</span> <span class="o">=</span> <span class="kc">True</span>
 
     <span class="k">def</span> <span class="nf">_do_reindex</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">dirty</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Common code for `reindex()` and `reindex_dirty()`.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Common code for `reindex()` and `reindex_dirty()`.&quot;&quot;&quot;</span>
 
         <span class="n">indexedrows</span> <span class="o">=</span> <span class="mi">0</span>
         <span class="k">for</span> <span class="p">(</span><span class="n">colname</span><span class="p">,</span> <span class="n">colindexed</span><span class="p">)</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">colindexed</span><span class="o">.</span><span class="n">items</span><span class="p">():</span>
@@ -2818,7 +2823,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">SizeType</span><span class="p">(</span><span class="n">indexedrows</span><span class="p">)</span>
 
 <div class="viewcode-block" id="Table.reindex"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Table.reindex">[docs]</a>    <span class="k">def</span> <span class="nf">reindex</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Recompute all the existing indexes in the table.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Recompute all the existing indexes in the table.</span>
 
 <span class="sd">        This can be useful when you suspect that, for any reason, the</span>
 <span class="sd">        index information for columns is no longer valid and want to</span>
@@ -2829,7 +2834,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">_do_reindex</span><span class="p">(</span><span class="n">dirty</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="Table.reindex_dirty"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Table.reindex_dirty">[docs]</a>    <span class="k">def</span> <span class="nf">reindex_dirty</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Recompute the existing indexes in table, *if* they are dirty.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Recompute the existing indexes in table, *if* they are dirty.</span>
 
 <span class="sd">        This can be useful when you have set :attr:`Table.autoindex`</span>
 <span class="sd">        (see :class:`Table`) to false for the table and you want to</span>
@@ -2841,7 +2846,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">_do_reindex</span><span class="p">(</span><span class="n">dirty</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span></div>
 
     <span class="k">def</span> <span class="nf">_g_copy_rows</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="nb">object</span><span class="p">,</span> <span class="n">start</span><span class="p">,</span> <span class="n">stop</span><span class="p">,</span> <span class="n">step</span><span class="p">,</span> <span class="n">sortby</span><span class="p">,</span> <span class="n">checkCSI</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Copy rows from self to object&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Copy rows from self to object&quot;&quot;&quot;</span>
         <span class="k">if</span> <span class="n">sortby</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
             <span class="bp">self</span><span class="o">.</span><span class="n">_g_copy_rows_optim</span><span class="p">(</span><span class="nb">object</span><span class="p">,</span> <span class="n">start</span><span class="p">,</span> <span class="n">stop</span><span class="p">,</span> <span class="n">step</span><span class="p">)</span>
             <span class="k">return</span>
@@ -2867,7 +2872,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="nb">object</span><span class="o">.</span><span class="n">flush</span><span class="p">()</span>
 
     <span class="k">def</span> <span class="nf">_g_copy_rows_optim</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="nb">object</span><span class="p">,</span> <span class="n">start</span><span class="p">,</span> <span class="n">stop</span><span class="p">,</span> <span class="n">step</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Copy rows from self to object (optimized version)&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Copy rows from self to object (optimized version)&quot;&quot;&quot;</span>
 
         <span class="n">nrowsinbuf</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">nrowsinbuf</span>
         <span class="nb">object</span><span class="o">.</span><span class="n">_open_append</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_v_iobuf</span><span class="p">)</span>
@@ -2887,7 +2892,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="nb">object</span><span class="o">.</span><span class="n">_close_append</span><span class="p">()</span>
 
     <span class="k">def</span> <span class="nf">_g_prop_indexes</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">other</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Generate index in `other` table for every indexed column here.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Generate index in `other` table for every indexed column here.&quot;&quot;&quot;</span>
 
         <span class="n">oldcols</span><span class="p">,</span> <span class="n">newcols</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">colinstances</span><span class="p">,</span> <span class="n">other</span><span class="o">.</span><span class="n">colinstances</span>
         <span class="k">for</span> <span class="n">colname</span> <span class="ow">in</span> <span class="n">newcols</span><span class="p">:</span>
@@ -2902,7 +2907,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
 
     <span class="k">def</span> <span class="nf">_g_copy_with_stats</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">group</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">start</span><span class="p">,</span> <span class="n">stop</span><span class="p">,</span> <span class="n">step</span><span class="p">,</span>
                            <span class="n">title</span><span class="p">,</span> <span class="n">filters</span><span class="p">,</span> <span class="n">chunkshape</span><span class="p">,</span> <span class="n">_log</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Private part of Leaf.copy() for each kind of leaf.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Private part of Leaf.copy() for each kind of leaf.&quot;&quot;&quot;</span>
 
         <span class="c1"># Get the private args for the Table flavor of copy()</span>
         <span class="n">sortby</span> <span class="o">=</span> <span class="n">kwargs</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="s1">&#39;sortby&#39;</span><span class="p">,</span> <span class="kc">None</span><span class="p">)</span>
@@ -2929,7 +2934,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
     <span class="c1"># the additional keywords for the Table case.</span>
 <div class="viewcode-block" id="Table.copy"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Table.copy">[docs]</a>    <span class="k">def</span> <span class="nf">copy</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">newparent</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">newname</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">overwrite</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span>
              <span class="n">createparents</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Copy this table and return the new one.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Copy this table and return the new one.</span>
 
 <span class="sd">        This method has the behavior and keywords described in</span>
 <span class="sd">        :meth:`Leaf.copy`.  Moreover, it recognises the following additional</span>
@@ -2960,7 +2965,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
             <span class="n">newparent</span><span class="p">,</span> <span class="n">newname</span><span class="p">,</span> <span class="n">overwrite</span><span class="p">,</span> <span class="n">createparents</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span></div>
 
     <span class="k">def</span> <span class="nf">flush</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Flush the table buffers.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Flush the table buffers.&quot;&quot;&quot;</span>
 
         <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_file</span><span class="o">.</span><span class="n">_iswritable</span><span class="p">():</span>
             <span class="c1"># Flush rows that remains to be appended</span>
@@ -2981,7 +2986,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="n">flush</span><span class="p">()</span>
 
     <span class="k">def</span> <span class="nf">_g_pre_kill_hook</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Code to be called before killing the node.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Code to be called before killing the node.&quot;&quot;&quot;</span>
 
         <span class="c1"># Flush the buffers before to clean-up them</span>
         <span class="c1"># self.flush()</span>
@@ -3049,30 +3054,30 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="n">_f_close</span><span class="p">(</span><span class="kc">False</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="fm">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;This provides column metainfo in addition to standard __str__&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;This provides column metainfo in addition to standard __str__&quot;&quot;&quot;</span>
 
         <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">indexed</span><span class="p">:</span>
             <span class="nb">format</span> <span class="o">=</span> <span class="s2">&quot;&quot;&quot;</span><span class="se">\</span>
-<span class="si">%s</span><span class="s2"></span>
-<span class="s2">  description := </span><span class="si">%r</span><span class="s2"></span>
-<span class="s2">  byteorder := </span><span class="si">%r</span><span class="s2"></span>
-<span class="s2">  chunkshape := </span><span class="si">%r</span><span class="s2"></span>
-<span class="s2">  autoindex := </span><span class="si">%r</span><span class="s2"></span>
+<span class="si">%s</span>
+<span class="s2">  description := </span><span class="si">%r</span>
+<span class="s2">  byteorder := </span><span class="si">%r</span>
+<span class="s2">  chunkshape := </span><span class="si">%r</span>
+<span class="s2">  autoindex := </span><span class="si">%r</span>
 <span class="s2">  colindexes := </span><span class="si">%r</span><span class="s2">&quot;&quot;&quot;</span>
             <span class="k">return</span> <span class="nb">format</span> <span class="o">%</span> <span class="p">(</span><span class="nb">str</span><span class="p">(</span><span class="bp">self</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">description</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">byteorder</span><span class="p">,</span>
                              <span class="bp">self</span><span class="o">.</span><span class="n">chunkshape</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">autoindex</span><span class="p">,</span>
                              <span class="n">_ColIndexes</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">colindexes</span><span class="p">))</span>
         <span class="k">else</span><span class="p">:</span>
             <span class="k">return</span> <span class="s2">&quot;&quot;&quot;</span><span class="se">\</span>
-<span class="si">%s</span><span class="s2"></span>
-<span class="s2">  description := </span><span class="si">%r</span><span class="s2"></span>
-<span class="s2">  byteorder := </span><span class="si">%r</span><span class="s2"></span>
+<span class="si">%s</span>
+<span class="s2">  description := </span><span class="si">%r</span>
+<span class="s2">  byteorder := </span><span class="si">%r</span>
 <span class="s2">  chunkshape := </span><span class="si">%r</span><span class="s2">&quot;&quot;&quot;</span> <span class="o">%</span> \
                 <span class="p">(</span><span class="nb">str</span><span class="p">(</span><span class="bp">self</span><span class="p">),</span> <span class="bp">self</span><span class="o">.</span><span class="n">description</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">byteorder</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">chunkshape</span><span class="p">)</span></div>
 
 
 <div class="viewcode-block" id="Cols"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Cols">[docs]</a><span class="k">class</span> <span class="nc">Cols</span><span class="p">:</span>
-    <span class="sd">&quot;&quot;&quot;Container for columns in a table or nested column.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Container for columns in a table or nested column.</span>
 
 <span class="sd">    This class is used as an *accessor* to the columns in a table or nested</span>
 <span class="sd">    column.  It supports the *natural naming* convention, so that you can</span>
@@ -3114,7 +3119,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">_v_table</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The parent Table instance (see :ref:`TableClassDescr`).&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The parent Table instance (see :ref:`TableClassDescr`).&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v__tableFile</span><span class="o">.</span><span class="n">_get_node</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_v__tablePath</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">table</span><span class="p">,</span> <span class="n">desc</span><span class="p">):</span>
@@ -3132,7 +3137,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
                 <span class="n">myDict</span><span class="p">[</span><span class="n">name</span><span class="p">]</span> <span class="o">=</span> <span class="n">Cols</span><span class="p">(</span><span class="n">table</span><span class="p">,</span> <span class="n">desc</span><span class="o">.</span><span class="n">_v_colobjects</span><span class="p">[</span><span class="n">name</span><span class="p">])</span>
 
     <span class="k">def</span> <span class="nf">_g_update_table_location</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">table</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Updates the location information about the associated `table`.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Updates the location information about the associated `table`.&quot;&quot;&quot;</span>
 
         <span class="n">myDict</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="vm">__dict__</span>
         <span class="n">myDict</span><span class="p">[</span><span class="s1">&#39;_v__tableFile&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">table</span><span class="o">.</span><span class="n">_v_file</span>
@@ -3143,12 +3148,12 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
             <span class="n">myDict</span><span class="p">[</span><span class="n">colname</span><span class="p">]</span><span class="o">.</span><span class="n">_g_update_table_location</span><span class="p">(</span><span class="n">table</span><span class="p">)</span>
 
 <div class="viewcode-block" id="Cols.__len__"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Cols.__len__">[docs]</a>    <span class="k">def</span> <span class="fm">__len__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get the number of top level columns in table.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get the number of top level columns in table.&quot;&quot;&quot;</span>
 
         <span class="k">return</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_v_colnames</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="Cols._f_col"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Cols._f_col">[docs]</a>    <span class="k">def</span> <span class="nf">_f_col</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">colname</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get an accessor to the column colname.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get an accessor to the column colname.</span>
 
 <span class="sd">        This method returns a Column instance (see :ref:`ColumnClassDescr`) if</span>
 <span class="sd">        the requested column is not nested, and a Cols instance (see</span>
@@ -3176,7 +3181,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_g_col</span><span class="p">(</span><span class="n">colname</span><span class="p">)</span></div>
 
     <span class="k">def</span> <span class="nf">_g_col</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">colname</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Like `self._f_col()` but it does not check arguments.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Like `self._f_col()` but it does not check arguments.&quot;&quot;&quot;</span>
 
         <span class="c1"># Get the Column or Description object</span>
         <span class="n">inames</span> <span class="o">=</span> <span class="n">colname</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">&#39;/&#39;</span><span class="p">)</span>
@@ -3186,7 +3191,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">cols</span>
 
 <div class="viewcode-block" id="Cols.__getitem__"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Cols.__getitem__">[docs]</a>    <span class="k">def</span> <span class="fm">__getitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get a row or a range of rows from a table or nested column.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get a row or a range of rows from a table or nested column.</span>
 
 <span class="sd">        If key argument is an integer, the corresponding nested type row is</span>
 <span class="sd">        returned as a record of the current flavor. If key is a slice, the</span>
@@ -3244,7 +3249,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
             <span class="k">raise</span> <span class="ne">TypeError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;invalid index or slice: </span><span class="si">{</span><span class="n">key</span><span class="si">!r}</span><span class="s2">&quot;</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="Cols.__setitem__"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Cols.__setitem__">[docs]</a>    <span class="k">def</span> <span class="fm">__setitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Set a row or a range of rows in a table or nested column.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Set a row or a range of rows in a table or nested column.</span>
 
 <span class="sd">        If key argument is an integer, the corresponding row is set to</span>
 <span class="sd">        value. If key is a slice, the range of rows determined by it is set to</span>
@@ -3309,7 +3314,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="vm">__dict__</span><span class="o">.</span><span class="n">clear</span><span class="p">()</span>
 
     <span class="k">def</span> <span class="fm">__str__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The string representation for this object.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The string representation for this object.&quot;&quot;&quot;</span>
 
         <span class="c1"># The pathname</span>
         <span class="n">descpathname</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_desc</span><span class="o">.</span><span class="n">_v_pathname</span>
@@ -3320,7 +3325,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
                 <span class="sa">f</span><span class="s2">&quot;</span><span class="si">{</span><span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_v_colnames</span><span class="p">)</span><span class="si">}</span><span class="s2"> columns&quot;</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="fm">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;A detailed string representation for this object.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;A detailed string representation for this object.&quot;&quot;&quot;</span>
 
         <span class="n">lines</span> <span class="o">=</span> <span class="p">[</span><span class="sa">f</span><span class="s1">&#39;</span><span class="si">{</span><span class="bp">self</span><span class="si">!s}</span><span class="s1">&#39;</span><span class="p">]</span>
         <span class="k">for</span> <span class="n">name</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_colnames</span><span class="p">:</span>
@@ -3341,7 +3346,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="Column"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Column">[docs]</a><span class="k">class</span> <span class="nc">Column</span><span class="p">:</span>
-    <span class="sd">&quot;&quot;&quot;Accessor for a non-nested column in a table.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Accessor for a non-nested column in a table.</span>
 
 <span class="sd">    Each instance of this class is associated with one *non-nested* column of a</span>
 <span class="sd">    table. These instances are mainly used to read and write data from the</span>
@@ -3382,24 +3387,24 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
 
     <span class="nd">@lazyattr</span>
     <span class="k">def</span> <span class="nf">dtype</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The NumPy dtype that most closely matches this column.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The NumPy dtype that most closely matches this column.&quot;&quot;&quot;</span>
 
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">descr</span><span class="o">.</span><span class="n">_v_dtypes</span><span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">name</span><span class="p">]</span><span class="o">.</span><span class="n">base</span>  <span class="c1"># Get rid of shape info</span>
 
     <span class="nd">@lazyattr</span>
     <span class="k">def</span> <span class="nf">type</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The PyTables type of the column (a string).&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The PyTables type of the column (a string).&quot;&quot;&quot;</span>
 
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">descr</span><span class="o">.</span><span class="n">_v_types</span><span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">name</span><span class="p">]</span>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">table</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The parent Table instance (see :ref:`TableClassDescr`).&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The parent Table instance (see :ref:`TableClassDescr`).&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_table_file</span><span class="o">.</span><span class="n">_get_node</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_table_path</span><span class="p">)</span>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">index</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The Index instance (see :ref:`IndexClassDescr`) associated with this</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The Index instance (see :ref:`IndexClassDescr`) associated with this</span>
 <span class="sd">        column (None if the column is not indexed).&quot;&quot;&quot;</span>
         <span class="n">indexPath</span> <span class="o">=</span> <span class="n">_index_pathname_of_column_</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_table_path</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">pathname</span><span class="p">)</span>
         <span class="k">try</span><span class="p">:</span>
@@ -3414,12 +3419,12 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">shape</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The shape of this column.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The shape of this column.&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">table</span><span class="o">.</span><span class="n">nrows</span><span class="p">,)</span> <span class="o">+</span> <span class="bp">self</span><span class="o">.</span><span class="n">descr</span><span class="o">.</span><span class="n">_v_dtypes</span><span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">name</span><span class="p">]</span><span class="o">.</span><span class="n">shape</span>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">is_indexed</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;True if the column is indexed, false otherwise.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;True if the column is indexed, false otherwise.&quot;&quot;&quot;</span>
         <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">index</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
             <span class="k">return</span> <span class="kc">False</span>
         <span class="k">else</span><span class="p">:</span>
@@ -3427,7 +3432,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">maindim</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;&quot;The dimension along which iterators work. Its value is 0 (i.e. the</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;&quot;The dimension along which iterators work. Its value is 0 (i.e. the</span>
 <span class="sd">        first dimension).&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="mi">0</span>
 
@@ -3435,23 +3440,23 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">_table_file</span> <span class="o">=</span> <span class="n">table</span><span class="o">.</span><span class="n">_v_file</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_table_path</span> <span class="o">=</span> <span class="n">table</span><span class="o">.</span><span class="n">_v_pathname</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">name</span> <span class="o">=</span> <span class="n">name</span>
-        <span class="sd">&quot;&quot;&quot;The name of the associated column.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The name of the associated column.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">pathname</span> <span class="o">=</span> <span class="n">descr</span><span class="o">.</span><span class="n">_v_colobjects</span><span class="p">[</span><span class="n">name</span><span class="p">]</span><span class="o">.</span><span class="n">_v_pathname</span>
-        <span class="sd">&quot;&quot;&quot;The complete pathname of the associated column (the same as</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The complete pathname of the associated column (the same as</span>
 <span class="sd">        Column.name if the column is not inside a nested column).&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">descr</span> <span class="o">=</span> <span class="n">descr</span>
-        <span class="sd">&quot;&quot;&quot;The Description (see :ref:`DescriptionClassDescr`) instance of the</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The Description (see :ref:`DescriptionClassDescr`) instance of the</span>
 <span class="sd">        parent table or nested column.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_attrs</span> <span class="o">=</span> <span class="n">ColumnAttributeSet</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_g_update_table_location</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">table</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Updates the location information about the associated `table`.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Updates the location information about the associated `table`.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_table_file</span> <span class="o">=</span> <span class="n">table</span><span class="o">.</span><span class="n">_v_file</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_table_path</span> <span class="o">=</span> <span class="n">table</span><span class="o">.</span><span class="n">_v_pathname</span>
 
 <div class="viewcode-block" id="Column.__len__"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Column.__len__">[docs]</a>    <span class="k">def</span> <span class="fm">__len__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get the number of elements in the column.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get the number of elements in the column.</span>
 
 <span class="sd">        This matches the length in rows of the parent table.</span>
 
@@ -3460,7 +3465,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">table</span><span class="o">.</span><span class="n">nrows</span></div>
 
 <div class="viewcode-block" id="Column.__getitem__"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Column.__getitem__">[docs]</a>    <span class="k">def</span> <span class="fm">__getitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get a row or a range of rows from a column.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get a row or a range of rows from a column.</span>
 
 <span class="sd">        If key argument is an integer, the corresponding element in the column</span>
 <span class="sd">        is returned as an object of the current flavor.  If key is a slice, the</span>
@@ -3530,7 +3535,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
                 <span class="s2">&quot;&#39;</span><span class="si">%s</span><span class="s2">&#39; key type is not valid in this context&quot;</span> <span class="o">%</span> <span class="n">key</span><span class="p">)</span></div>
 
     <span class="k">def</span> <span class="fm">__iter__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Iterate through all items in the column.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Iterate through all items in the column.&quot;&quot;&quot;</span>
 
         <span class="n">table</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">table</span>
         <span class="n">itemsize</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">dtype</span><span class="o">.</span><span class="n">itemsize</span>
@@ -3545,7 +3550,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
             <span class="k">yield from</span> <span class="n">buf_slice</span>
 
 <div class="viewcode-block" id="Column.__setitem__"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Column.__setitem__">[docs]</a>    <span class="k">def</span> <span class="fm">__setitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Set a row or a range of rows in a column.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Set a row or a range of rows in a column.</span>
 
 <span class="sd">        If key argument is an integer, the corresponding element is set to</span>
 <span class="sd">        value.  If key is a slice, the range of elements determined by it is</span>
@@ -3605,7 +3610,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
 <div class="viewcode-block" id="Column.create_index"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Column.create_index">[docs]</a>    <span class="k">def</span> <span class="nf">create_index</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">optlevel</span><span class="o">=</span><span class="mi">6</span><span class="p">,</span> <span class="n">kind</span><span class="o">=</span><span class="s2">&quot;medium&quot;</span><span class="p">,</span> <span class="n">filters</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
                      <span class="n">tmp_dir</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">_blocksizes</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">_testmode</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span>
                      <span class="n">_verbose</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create an index for this column.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create an index for this column.</span>
 
 <span class="sd">        .. warning::</span>
 
@@ -3675,7 +3680,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
 
 <div class="viewcode-block" id="Column.create_csindex"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Column.create_csindex">[docs]</a>    <span class="k">def</span> <span class="nf">create_csindex</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">filters</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">tmp_dir</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
                        <span class="n">_blocksizes</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">_testmode</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">_verbose</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create a completely sorted index (CSI) for this column.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create a completely sorted index (CSI) for this column.</span>
 
 <span class="sd">        This method guarantees the creation of an index with zero entropy, that</span>
 <span class="sd">        is, a completely sorted index (CSI) -- provided that the number of rows</span>
@@ -3699,7 +3704,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
             <span class="n">_blocksizes</span><span class="o">=</span><span class="n">_blocksizes</span><span class="p">,</span> <span class="n">_testmode</span><span class="o">=</span><span class="n">_testmode</span><span class="p">,</span> <span class="n">_verbose</span><span class="o">=</span><span class="n">_verbose</span><span class="p">)</span></div>
 
     <span class="k">def</span> <span class="nf">_do_reindex</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">dirty</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Common code for reindex() and reindex_dirty() codes.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Common code for reindex() and reindex_dirty() codes.&quot;&quot;&quot;</span>
 
         <span class="n">index</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">index</span>
         <span class="n">dodirty</span> <span class="o">=</span> <span class="kc">True</span>
@@ -3723,7 +3728,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
             <span class="k">return</span> <span class="n">SizeType</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>  <span class="c1"># The column is not intended for indexing</span>
 
 <div class="viewcode-block" id="Column.reindex"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Column.reindex">[docs]</a>    <span class="k">def</span> <span class="nf">reindex</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Recompute the index associated with this column.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Recompute the index associated with this column.</span>
 
 <span class="sd">        This can be useful when you suspect that, for any reason,</span>
 <span class="sd">        the index information is no longer valid and you want to rebuild it.</span>
@@ -3735,7 +3740,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">_do_reindex</span><span class="p">(</span><span class="n">dirty</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="Column.reindex_dirty"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Column.reindex_dirty">[docs]</a>    <span class="k">def</span> <span class="nf">reindex_dirty</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Recompute the associated index only if it is dirty.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Recompute the associated index only if it is dirty.</span>
 
 <span class="sd">        This can be useful when you have set :attr:`Table.autoindex` to false</span>
 <span class="sd">        for the table and you want to update the column&#39;s index after an</span>
@@ -3748,7 +3753,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">_do_reindex</span><span class="p">(</span><span class="n">dirty</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span></div>
 
 <div class="viewcode-block" id="Column.remove_index"><a class="viewcode-back" href="../../usersguide/libref/structured_storage.html#tables.Column.remove_index">[docs]</a>    <span class="k">def</span> <span class="nf">remove_index</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Remove the index associated with this column.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Remove the index associated with this column.</span>
 
 <span class="sd">        This method does nothing if the column is not indexed. The removed</span>
 <span class="sd">        index can be created again by calling the :meth:`Column.create_index`</span>
@@ -3765,19 +3770,19 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
             <span class="bp">self</span><span class="o">.</span><span class="n">table</span><span class="o">.</span><span class="n">_set_column_indexing</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">pathname</span><span class="p">,</span> <span class="kc">False</span><span class="p">)</span></div>
 
     <span class="k">def</span> <span class="nf">close</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Close this column.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Close this column.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="vm">__dict__</span><span class="o">.</span><span class="n">clear</span><span class="p">()</span>
 
     <span class="k">def</span> <span class="fm">__str__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The string representation for this object.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The string representation for this object.&quot;&quot;&quot;</span>
 
-        <span class="k">return</span> <span class="p">(</span><span class="sa">f</span><span class="s2">&quot;</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">_table_path</span><span class="si">}</span><span class="s2">.cols.</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">pathname</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">&#39;/&#39;</span><span class="p">,</span> <span class="s1">&#39;.&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2"> &quot;</span>
+        <span class="k">return</span> <span class="p">(</span><span class="sa">f</span><span class="s2">&quot;</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">_table_path</span><span class="si">}</span><span class="s2">.cols.</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">pathname</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="s1">&#39;/&#39;</span><span class="p">,</span><span class="w"> </span><span class="s1">&#39;.&#39;</span><span class="p">)</span><span class="si">}</span><span class="s2"> &quot;</span>
                 <span class="sa">f</span><span class="s2">&quot;(</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="vm">__class__</span><span class="o">.</span><span class="vm">__name__</span><span class="si">}{</span><span class="bp">self</span><span class="o">.</span><span class="n">shape</span><span class="si">}</span><span class="s2">, &quot;</span>
                 <span class="sa">f</span><span class="s2">&quot;</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">descr</span><span class="o">.</span><span class="n">_v_types</span><span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">name</span><span class="p">]</span><span class="si">}</span><span class="s2">, idx=</span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">index</span><span class="si">}</span><span class="s2">)&quot;</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="fm">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;A detailed string representation for this object.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;A detailed string representation for this object.&quot;&quot;&quot;</span>
 
         <span class="k">return</span> <span class="nb">str</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
 
@@ -3808,58 +3813,58 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
             <span class="bp">self</span><span class="o">.</span><span class="fm">__setitem__</span><span class="p">(</span><span class="n">col_attr_key</span><span class="p">,</span> <span class="n">col_attr_val</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">issystemcolumnname</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Checks whether a key is a reserved attribute name, or should be passed through.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Checks whether a key is a reserved attribute name, or should be passed through.&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="n">key</span> <span class="ow">in</span> <span class="p">[</span><span class="s1">&#39;_v_tableattrs&#39;</span><span class="p">,</span> <span class="s1">&#39;_v_fieldindex&#39;</span><span class="p">,</span> <span class="s1">&#39;_v_column_reference&#39;</span><span class="p">]</span>
 
     <span class="k">def</span> <span class="nf">_prefix</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">string</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Prefixes a key with a special pattern for storing with table attributes&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Prefixes a key with a special pattern for storing with table attributes&quot;&quot;&quot;</span>
         <span class="n">field_index</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="vm">__dict__</span><span class="p">[</span><span class="s1">&#39;_v_fieldindex&#39;</span><span class="p">]</span>
         <span class="k">return</span> <span class="s1">&#39;FIELD_</span><span class="si">%i</span><span class="s1">_ATTR_</span><span class="si">%s</span><span class="s1">&#39;</span> <span class="o">%</span> <span class="p">(</span><span class="n">field_index</span><span class="p">,</span> <span class="n">string</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="fm">__getattr__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Retrieves a PyTables attribute for this column&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Retrieves a PyTables attribute for this column&quot;&quot;&quot;</span>
         <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">issystemcolumnname</span><span class="p">(</span><span class="n">key</span><span class="p">):</span>
             <span class="k">return</span> <span class="nb">getattr</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_v_tableattrs</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_prefix</span><span class="p">(</span><span class="n">key</span><span class="p">))</span>
         <span class="k">else</span><span class="p">:</span>
             <span class="k">return</span> <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__getattr__</span><span class="p">(</span><span class="n">key</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="fm">__setattr__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">,</span> <span class="n">val</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Sets a PyTables attribute for this column&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Sets a PyTables attribute for this column&quot;&quot;&quot;</span>
         <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">issystemcolumnname</span><span class="p">(</span><span class="n">key</span><span class="p">):</span>
             <span class="nb">setattr</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_v_tableattrs</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_prefix</span><span class="p">(</span><span class="n">key</span><span class="p">),</span> <span class="n">val</span><span class="p">)</span>
         <span class="k">else</span><span class="p">:</span>
             <span class="k">return</span> <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__setattr__</span><span class="p">(</span><span class="n">key</span><span class="p">,</span> <span class="n">val</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="fm">__getitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;A dictionary-like interface for __getattr__&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;A dictionary-like interface for __getattr__&quot;&quot;&quot;</span>
         <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">issystemcolumnname</span><span class="p">(</span><span class="n">key</span><span class="p">):</span>
             <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_tableattrs</span><span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">_prefix</span><span class="p">(</span><span class="n">key</span><span class="p">)]</span>
         <span class="k">else</span><span class="p">:</span>
             <span class="k">return</span> <span class="bp">self</span><span class="p">[</span><span class="n">key</span><span class="p">]</span>
 
     <span class="k">def</span> <span class="fm">__setitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;A dictionary-like interface for __setattr__&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;A dictionary-like interface for __setattr__&quot;&quot;&quot;</span>
         <span class="k">if</span> <span class="ow">not</span> <span class="bp">self</span><span class="o">.</span><span class="n">issystemcolumnname</span><span class="p">(</span><span class="n">key</span><span class="p">):</span>
             <span class="bp">self</span><span class="o">.</span><span class="n">_v_tableattrs</span><span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">_prefix</span><span class="p">(</span><span class="n">key</span><span class="p">)]</span> <span class="o">=</span> <span class="n">value</span>
         <span class="k">else</span><span class="p">:</span>
             <span class="bp">self</span><span class="p">[</span><span class="n">key</span><span class="p">]</span> <span class="o">=</span> <span class="n">value</span>
 
     <span class="k">def</span> <span class="fm">__delattr__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Deletes the attribute for this column&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Deletes the attribute for this column&quot;&quot;&quot;</span>
         <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">issystemcolumnname</span><span class="p">(</span><span class="n">key</span><span class="p">):</span>
             <span class="k">raise</span> <span class="ne">TypeError</span><span class="p">(</span><span class="s1">&#39;Deleting system attributes is prohibited&#39;</span><span class="p">)</span>
         <span class="k">else</span><span class="p">:</span>
             <span class="nb">delattr</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_v_tableattrs</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_prefix</span><span class="p">(</span><span class="n">key</span><span class="p">))</span>
 
     <span class="k">def</span> <span class="fm">__delitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;A dictionary-like interface for __delattr__&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;A dictionary-like interface for __delattr__&quot;&quot;&quot;</span>
         <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">issystemcolumnname</span><span class="p">(</span><span class="n">key</span><span class="p">):</span>
             <span class="k">raise</span> <span class="ne">TypeError</span><span class="p">(</span><span class="s1">&#39;Deleting system attributes is prohibited&#39;</span><span class="p">)</span>
         <span class="k">else</span><span class="p">:</span>
             <span class="k">del</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_tableattrs</span><span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">_prefix</span><span class="p">(</span><span class="n">key</span><span class="p">)]</span>
 
     <span class="k">def</span> <span class="nf">_f_rename</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">oldattrname</span><span class="p">,</span> <span class="n">newattrname</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Rename an attribute from oldattrname to newattrname.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Rename an attribute from oldattrname to newattrname.&quot;&quot;&quot;</span>
 
         <span class="k">if</span> <span class="n">oldattrname</span> <span class="o">==</span> <span class="n">newattrname</span><span class="p">:</span>
             <span class="c1"># Do nothing</span>
@@ -3878,7 +3883,7 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="nb">delattr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">oldattrname</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">_f_copy</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">where</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Copy attributes to another column&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Copy attributes to another column&quot;&quot;&quot;</span>
 
         <span class="c1"># Is there a better way to do this?</span>
         <span class="k">if</span> <span class="ow">not</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">where</span><span class="p">,</span> <span class="n">Column</span><span class="p">):</span>
@@ -3888,17 +3893,17 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
             <span class="n">where</span><span class="o">.</span><span class="n">attrs</span><span class="p">[</span><span class="n">key</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="p">[</span><span class="n">key</span><span class="p">]</span>
 
     <span class="k">def</span> <span class="nf">keys</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Returns the list of attributes for this column&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Returns the list of attributes for this column&quot;&quot;&quot;</span>
         <span class="n">col_prefix</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_prefix</span><span class="p">(</span><span class="s1">&#39;&#39;</span><span class="p">)</span>
         <span class="n">length</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="n">col_prefix</span><span class="p">)</span>
         <span class="k">return</span> <span class="p">[</span><span class="n">key</span><span class="p">[</span><span class="n">length</span><span class="p">:]</span> <span class="k">for</span> <span class="n">key</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_tableattrs</span><span class="o">.</span><span class="n">_v_attrnames</span> <span class="k">if</span> <span class="n">key</span><span class="o">.</span><span class="n">startswith</span><span class="p">(</span><span class="n">col_prefix</span><span class="p">)]</span>
 
     <span class="k">def</span> <span class="nf">contains</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Returns whether a key is in the attribute set&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Returns whether a key is in the attribute set&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="n">key</span> <span class="ow">in</span> <span class="bp">self</span><span class="o">.</span><span class="n">keys</span><span class="p">()</span>
 
     <span class="k">def</span> <span class="fm">__str__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The string representation for this object.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The string representation for this object.&quot;&quot;&quot;</span>
 
         <span class="n">pathname</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_tableattrs</span><span class="o">.</span><span class="n">_v__nodepath</span>
         <span class="n">classname</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_column_reference</span><span class="p">()</span><span class="o">.</span><span class="vm">__class__</span><span class="o">.</span><span class="vm">__name__</span>  <span class="c1"># self._v_tableattrs._v_node.__class__.__name__</span>
@@ -3908,12 +3913,12 @@ <h1>Source code for tables.table</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="sa">f</span><span class="s2">&quot;</span><span class="si">{</span><span class="n">pathname</span><span class="si">}</span><span class="s2">.cols.</span><span class="si">{</span><span class="n">columnname</span><span class="si">}</span><span class="s2">._v_attrs (</span><span class="si">{</span><span class="n">classname</span><span class="si">}</span><span class="s2">), </span><span class="si">{</span><span class="n">attrnumber</span><span class="si">}</span><span class="s2"> attributes&quot;</span>
 
     <span class="k">def</span> <span class="fm">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;A detailed string representation for this object.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;A detailed string representation for this object.&quot;&quot;&quot;</span>
 
         <span class="c1"># print additional info only if there are attributes to show</span>
         <span class="n">attrnames</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">keys</span><span class="p">()</span>
         <span class="k">if</span> <span class="n">attrnames</span><span class="p">:</span>
-            <span class="n">rep</span> <span class="o">=</span> <span class="p">[</span><span class="sa">f</span><span class="s1">&#39;</span><span class="si">{</span><span class="n">attr</span><span class="si">}</span><span class="s1"> := </span><span class="si">{</span><span class="nb">getattr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">attr</span><span class="p">)</span><span class="si">!r}</span><span class="s1">&#39;</span> <span class="k">for</span> <span class="n">attr</span> <span class="ow">in</span> <span class="n">attrnames</span><span class="p">]</span>
+            <span class="n">rep</span> <span class="o">=</span> <span class="p">[</span><span class="sa">f</span><span class="s1">&#39;</span><span class="si">{</span><span class="n">attr</span><span class="si">}</span><span class="s1"> := </span><span class="si">{</span><span class="nb">getattr</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span><span class="w"> </span><span class="n">attr</span><span class="p">)</span><span class="si">!r}</span><span class="s1">&#39;</span> <span class="k">for</span> <span class="n">attr</span> <span class="ow">in</span> <span class="n">attrnames</span><span class="p">]</span>
             <span class="k">return</span> <span class="sa">f</span><span class="s2">&quot;</span><span class="si">{</span><span class="bp">self</span><span class="si">!s}</span><span class="s2">:</span><span class="se">\n</span><span class="s2">   [&quot;</span> <span class="o">+</span> <span class="s1">&#39;,</span><span class="se">\n</span><span class="s1">    &#39;</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">rep</span><span class="p">)</span> <span class="o">+</span> <span class="s2">&quot;]&quot;</span>
         <span class="k">else</span><span class="p">:</span>
             <span class="k">return</span> <span class="nb">str</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span>
diff --git a/_modules/tables/tests/common.html b/_modules/tables/tests/common.html
index fe12a6d..f63c060 100644
--- a/_modules/tables/tests/common.html
+++ b/_modules/tables/tests/common.html
@@ -3,7 +3,7 @@
 <head>
   <meta charset="utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>tables.tests.common &mdash; PyTables 3.9.1.dev0 documentation</title>
+  <title>tables.tests.common &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../../_static/graphviz.css" type="text/css" />
@@ -16,6 +16,7 @@
         <script src="../../../_static/underscore.js"></script>
         <script src="../../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../../_static/doctools.js"></script>
+        <script src="../../../_static/sphinx_highlight.js"></script>
     <script src="../../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../../genindex.html" />
     <link rel="search" title="Search" href="../../../search.html" />
@@ -38,15 +39,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../../index.html">
-            <img src="../../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../../index.html">
+            
+              <img src="../../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.1.dev0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -78,9 +83,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../../index.html">Module code</a> &raquo;</li>
-      <li>tables.tests.common</li>
+      <li><a href="../../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../../index.html">Module code</a></li>
+      <li class="breadcrumb-item active">tables.tests.common</li>
       <li class="wy-breadcrumbs-aside">
       </li>
   </ul>
@@ -163,7 +168,7 @@ <h1>Source code for tables.tests.common</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="print_versions"><a class="viewcode-back" href="../../../usersguide/libref/top_level.html#tables.print_versions">[docs]</a><span class="k">def</span> <span class="nf">print_versions</span><span class="p">():</span>
-    <span class="sd">&quot;&quot;&quot;Print all the versions of software that PyTables relies on.&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Print all the versions of software that PyTables relies on.&quot;&quot;&quot;</span>
 
     <span class="nb">print</span><span class="p">(</span><span class="s1">&#39;-=&#39;</span> <span class="o">*</span> <span class="mi">38</span><span class="p">)</span>
     <span class="nb">print</span><span class="p">(</span><span class="s2">&quot;PyTables version:    </span><span class="si">%s</span><span class="s2">&quot;</span> <span class="o">%</span> <span class="n">tb</span><span class="o">.</span><span class="n">__version__</span><span class="p">)</span>
@@ -235,7 +240,7 @@ <h1>Source code for tables.tests.common</h1><div class="highlight"><pre>
 
 
 <span class="k">def</span> <span class="nf">verbosePrint</span><span class="p">(</span><span class="n">string</span><span class="p">,</span> <span class="n">nonl</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Print out the `string` if verbose output is enabled.&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Print out the `string` if verbose output is enabled.&quot;&quot;&quot;</span>
     <span class="k">if</span> <span class="ow">not</span> <span class="n">verbose</span><span class="p">:</span>
         <span class="k">return</span>
     <span class="k">if</span> <span class="n">nonl</span><span class="p">:</span>
@@ -245,7 +250,7 @@ <h1>Source code for tables.tests.common</h1><div class="highlight"><pre>
 
 
 <span class="k">def</span> <span class="nf">allequal</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">,</span> <span class="n">flavor</span><span class="o">=</span><span class="s2">&quot;numpy&quot;</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Checks if two numerical objects are equal.&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Checks if two numerical objects are equal.&quot;&quot;&quot;</span>
 
     <span class="c1"># print(&quot;a--&gt;&quot;, repr(a))</span>
     <span class="c1"># print(&quot;b--&gt;&quot;, repr(b))</span>
@@ -298,7 +303,7 @@ <h1>Source code for tables.tests.common</h1><div class="highlight"><pre>
 
 
 <span class="k">def</span> <span class="nf">areArraysEqual</span><span class="p">(</span><span class="n">arr1</span><span class="p">,</span> <span class="n">arr2</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Are both `arr1` and `arr2` equal arrays?</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Are both `arr1` and `arr2` equal arrays?</span>
 
 <span class="sd">    Arguments can be regular NumPy arrays, chararray arrays or</span>
 <span class="sd">    structured arrays (including structured record arrays). They are</span>
@@ -324,15 +329,15 @@ <h1>Source code for tables.tests.common</h1><div class="highlight"><pre>
                 <span class="bp">self</span><span class="o">.</span><span class="vm">__dict__</span><span class="p">[</span><span class="n">key</span><span class="p">]</span> <span class="o">=</span> <span class="kc">None</span>
 
     <span class="k">def</span> <span class="nf">_getName</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get the name of this test case.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get the name of this test case.&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">id</span><span class="p">()</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">&#39;.&#39;</span><span class="p">)[</span><span class="o">-</span><span class="mi">2</span><span class="p">]</span>
 
     <span class="k">def</span> <span class="nf">_getMethodName</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get the name of the method currently running in the test case.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get the name of the method currently running in the test case.&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">id</span><span class="p">()</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s1">&#39;.&#39;</span><span class="p">)[</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span>
 
     <span class="k">def</span> <span class="nf">_verboseHeader</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Print a nice header for the current test method if verbose.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Print a nice header for the current test method if verbose.&quot;&quot;&quot;</span>
 
         <span class="k">if</span> <span class="n">verbose</span><span class="p">:</span>
             <span class="n">name</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_getName</span><span class="p">()</span>
@@ -384,7 +389,7 @@ <h1>Source code for tables.tests.common</h1><div class="highlight"><pre>
             <span class="bp">self</span><span class="o">.</span><span class="n">h5fname</span><span class="p">,</span> <span class="n">title</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_getName</span><span class="p">(),</span> <span class="o">**</span><span class="bp">self</span><span class="o">.</span><span class="n">open_kwargs</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">tearDown</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Close ``h5file``.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Close ``h5file``.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">h5file</span><span class="o">.</span><span class="n">close</span><span class="p">()</span>
         <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="n">tearDown</span><span class="p">()</span>
@@ -398,7 +403,7 @@ <h1>Source code for tables.tests.common</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">tempfile</span><span class="o">.</span><span class="n">mktemp</span><span class="p">(</span><span class="n">prefix</span><span class="o">=</span><span class="bp">self</span><span class="o">.</span><span class="n">_getName</span><span class="p">(),</span> <span class="n">suffix</span><span class="o">=</span><span class="s1">&#39;.h5&#39;</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">setUp</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Set ``h5file`` and ``h5fname`` instance attributes.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Set ``h5file`` and ``h5fname`` instance attributes.</span>
 
 <span class="sd">        * ``h5fname``: the name of the temporary HDF5 file.</span>
 <span class="sd">        * ``h5file``: the writable, empty, temporary HDF5 file.</span>
@@ -412,7 +417,7 @@ <h1>Source code for tables.tests.common</h1><div class="highlight"><pre>
             <span class="o">**</span><span class="bp">self</span><span class="o">.</span><span class="n">open_kwargs</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="nf">tearDown</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Close ``h5file`` and remove ``h5fname``.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Close ``h5file`` and remove ``h5fname``.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">h5file</span><span class="o">.</span><span class="n">close</span><span class="p">()</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">h5file</span> <span class="o">=</span> <span class="kc">None</span>
@@ -420,7 +425,7 @@ <h1>Source code for tables.tests.common</h1><div class="highlight"><pre>
         <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="n">tearDown</span><span class="p">()</span>
 
     <span class="k">def</span> <span class="nf">_reopen</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">mode</span><span class="o">=</span><span class="s1">&#39;r&#39;</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Reopen ``h5file`` in the specified ``mode``.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Reopen ``h5file`` in the specified ``mode``.</span>
 
 <span class="sd">        Returns a true or false value depending on whether the file was</span>
 <span class="sd">        reopenend or not.  If not, nothing is changed.</span>
@@ -434,10 +439,10 @@ <h1>Source code for tables.tests.common</h1><div class="highlight"><pre>
 
 <span class="k">class</span> <span class="nc">ShowMemTime</span><span class="p">(</span><span class="n">PyTablesTestCase</span><span class="p">):</span>
     <span class="n">tref</span> <span class="o">=</span> <span class="n">clock</span><span class="p">()</span>
-    <span class="sd">&quot;&quot;&quot;Test for showing memory and time consumption.&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Test for showing memory and time consumption.&quot;&quot;&quot;</span>
 
     <span class="k">def</span> <span class="nf">test00</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Showing memory and time consumption.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Showing memory and time consumption.&quot;&quot;&quot;</span>
 
         <span class="c1"># Obtain memory info (only for Linux 2.6.x)</span>
         <span class="k">for</span> <span class="n">line</span> <span class="ow">in</span> <span class="n">Path</span><span class="p">(</span><span class="s2">&quot;/proc/self/status&quot;</span><span class="p">)</span><span class="o">.</span><span class="n">read_text</span><span class="p">()</span><span class="o">.</span><span class="n">splitlines</span><span class="p">():</span>
diff --git a/_modules/tables/tests/test_suite.html b/_modules/tables/tests/test_suite.html
index 73c8fa6..83940d5 100644
--- a/_modules/tables/tests/test_suite.html
+++ b/_modules/tables/tests/test_suite.html
@@ -3,7 +3,7 @@
 <head>
   <meta charset="utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>tables.tests.test_suite &mdash; PyTables 3.8.1.dev0 documentation</title>
+  <title>tables.tests.test_suite &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../../_static/graphviz.css" type="text/css" />
@@ -16,6 +16,7 @@
         <script src="../../../_static/underscore.js"></script>
         <script src="../../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../../_static/doctools.js"></script>
+        <script src="../../../_static/sphinx_highlight.js"></script>
     <script src="../../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../../genindex.html" />
     <link rel="search" title="Search" href="../../../search.html" />
@@ -38,15 +39,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../../index.html">
-            <img src="../../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../../index.html">
+            
+              <img src="../../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.8.1.dev0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -78,9 +83,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../../index.html">Module code</a> &raquo;</li>
-      <li>tables.tests.test_suite</li>
+      <li><a href="../../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../../index.html">Module code</a></li>
+      <li class="breadcrumb-item active">tables.tests.test_suite</li>
       <li class="wy-breadcrumbs-aside">
       </li>
   </ul>
@@ -156,7 +161,7 @@ <h1>Source code for tables.tests.test_suite</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="test"><a class="viewcode-back" href="../../../usersguide/libref/top_level.html#tables.test">[docs]</a><span class="k">def</span> <span class="nf">test</span><span class="p">(</span><span class="n">verbose</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">heavy</span><span class="o">=</span><span class="kc">False</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;Run all the tests in the test suite.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;Run all the tests in the test suite.</span>
 
 <span class="sd">    If *verbose* is set, the test suite will emit messages with full</span>
 <span class="sd">    verbosity (not recommended unless you are looking into a certain</span>
diff --git a/_modules/tables/unimplemented.html b/_modules/tables/unimplemented.html
index 63b54d9..bc4e53b 100644
--- a/_modules/tables/unimplemented.html
+++ b/_modules/tables/unimplemented.html
@@ -3,7 +3,7 @@
 <head>
   <meta charset="utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>tables.unimplemented &mdash; PyTables 3.8.1.dev0 documentation</title>
+  <title>tables.unimplemented &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/graphviz.css" type="text/css" />
@@ -16,6 +16,7 @@
         <script src="../../_static/underscore.js"></script>
         <script src="../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../_static/doctools.js"></script>
+        <script src="../../_static/sphinx_highlight.js"></script>
     <script src="../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../genindex.html" />
     <link rel="search" title="Search" href="../../search.html" />
@@ -38,15 +39,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../index.html">
-            <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../index.html">
+            
+              <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.8.1.dev0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -78,9 +83,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../index.html">Module code</a> &raquo;</li>
-      <li>tables.unimplemented</li>
+      <li><a href="../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../index.html">Module code</a></li>
+      <li class="breadcrumb-item active">tables.unimplemented</li>
       <li class="wy-breadcrumbs-aside">
       </li>
   </ul>
@@ -101,7 +106,7 @@ <h1>Source code for tables.unimplemented</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="UnImplemented"><a class="viewcode-back" href="../../usersguide/libref/helper_classes.html#tables.UnImplemented">[docs]</a><span class="k">class</span> <span class="nc">UnImplemented</span><span class="p">(</span><span class="n">hdf5extension</span><span class="o">.</span><span class="n">UnImplemented</span><span class="p">,</span> <span class="n">Leaf</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;This class represents datasets not supported by PyTables in an HDF5</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;This class represents datasets not supported by PyTables in an HDF5</span>
 <span class="sd">    file.</span>
 
 <span class="sd">    When reading a generic HDF5 file (i.e. one that has not been created with</span>
@@ -129,18 +134,18 @@ <h1>Source code for tables.unimplemented</h1><div class="highlight"><pre>
     <span class="n">_c_classid</span> <span class="o">=</span> <span class="s1">&#39;UNIMPLEMENTED&#39;</span>
 
     <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">parentnode</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create the `UnImplemented` instance.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create the `UnImplemented` instance.&quot;&quot;&quot;</span>
 
         <span class="c1"># UnImplemented objects always come from opening an existing node</span>
         <span class="c1"># (they can not be created).</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_new</span> <span class="o">=</span> <span class="kc">False</span>
-        <span class="sd">&quot;&quot;&quot;Is this the first time the node has been created?&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Is this the first time the node has been created?&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">nrows</span> <span class="o">=</span> <span class="n">SizeType</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>
-        <span class="sd">&quot;&quot;&quot;The length of the first dimension of the data.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The length of the first dimension of the data.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">shape</span> <span class="o">=</span> <span class="p">(</span><span class="n">SizeType</span><span class="p">(</span><span class="mi">0</span><span class="p">),)</span>
-        <span class="sd">&quot;&quot;&quot;The shape of the stored data.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The shape of the stored data.&quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">byteorder</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;The endianness of data in memory (&#39;big&#39;, &#39;little&#39; or</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The endianness of data in memory (&#39;big&#39;, &#39;little&#39; or</span>
 <span class="sd">        &#39;irrelevant&#39;).&quot;&quot;&quot;</span>
 
         <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="n">parentnode</span><span class="p">,</span> <span class="n">name</span><span class="p">)</span>
@@ -154,7 +159,7 @@ <h1>Source code for tables.unimplemented</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">object_id</span>
 
     <span class="k">def</span> <span class="nf">_g_copy</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">newparent</span><span class="p">,</span> <span class="n">newname</span><span class="p">,</span> <span class="n">recursive</span><span class="p">,</span> <span class="n">_log</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Do nothing.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Do nothing.</span>
 
 <span class="sd">        This method does nothing, but a ``UserWarning`` is issued.</span>
 <span class="sd">        Please note that this method *does not return a new node*, but</span>
@@ -170,7 +175,7 @@ <h1>Source code for tables.unimplemented</h1><div class="highlight"><pre>
     <span class="k">def</span> <span class="nf">_f_copy</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">newparent</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">newname</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span>
                 <span class="n">overwrite</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">recursive</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span> <span class="n">createparents</span><span class="o">=</span><span class="kc">False</span><span class="p">,</span>
                 <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Do nothing.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Do nothing.</span>
 
 <span class="sd">        This method does nothing, since `UnImplemented` nodes can not</span>
 <span class="sd">        be copied.  However, a ``UserWarning`` is issued.  Please note</span>
@@ -183,7 +188,7 @@ <h1>Source code for tables.unimplemented</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="kc">None</span>  <span class="c1"># Can you see it?</span>
 
     <span class="k">def</span> <span class="fm">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="k">return</span> <span class="s2">&quot;&quot;&quot;</span><span class="si">{}</span><span class="s2"></span>
+        <span class="k">return</span> <span class="s2">&quot;&quot;&quot;</span><span class="si">{}</span>
 <span class="s2">  NOTE: &lt;The UnImplemented object represents a PyTables unimplemented</span>
 <span class="s2">         dataset present in the &#39;</span><span class="si">{}</span><span class="s2">&#39; HDF5 file.  If you want to see this</span>
 <span class="s2">         kind of HDF5 dataset implemented in PyTables, please contact the</span>
@@ -193,7 +198,7 @@ <h1>Source code for tables.unimplemented</h1><div class="highlight"><pre>
 
 <span class="c1"># Classes reported as H5G_UNKNOWN by HDF5</span>
 <div class="viewcode-block" id="Unknown"><a class="viewcode-back" href="../../usersguide/libref/helper_classes.html#tables.Unknown">[docs]</a><span class="k">class</span> <span class="nc">Unknown</span><span class="p">(</span><span class="n">Node</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;This class represents nodes reported as *unknown* by the underlying</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;This class represents nodes reported as *unknown* by the underlying</span>
 <span class="sd">    HDF5 library.</span>
 
 <span class="sd">    This class does not have any public instance variables or methods, except</span>
@@ -205,7 +210,7 @@ <h1>Source code for tables.unimplemented</h1><div class="highlight"><pre>
     <span class="n">_c_classid</span> <span class="o">=</span> <span class="s1">&#39;UNKNOWN&#39;</span>
 
     <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">parentnode</span><span class="p">,</span> <span class="n">name</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create the `Unknown` instance.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create the `Unknown` instance.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_new</span> <span class="o">=</span> <span class="kc">False</span>
         <span class="nb">super</span><span class="p">()</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="n">parentnode</span><span class="p">,</span> <span class="n">name</span><span class="p">)</span>
@@ -229,7 +234,7 @@ <h1>Source code for tables.unimplemented</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="sa">f</span><span class="s2">&quot;</span><span class="si">{</span><span class="n">pathname</span><span class="si">}</span><span class="s2"> (</span><span class="si">{</span><span class="n">classname</span><span class="si">}</span><span class="s2">)&quot;</span>
 
     <span class="k">def</span> <span class="fm">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="k">return</span> <span class="sa">f</span><span class="s2">&quot;&quot;&quot;</span><span class="si">{</span><span class="bp">self</span><span class="si">!s}</span><span class="s2"></span>
+        <span class="k">return</span> <span class="sa">f</span><span class="s2">&quot;&quot;&quot;</span><span class="si">{</span><span class="bp">self</span><span class="si">!s}</span>
 <span class="s2">  NOTE: &lt;The Unknown object represents a node which is reported as</span>
 <span class="s2">         unknown by the underlying HDF5 library, but that might be</span>
 <span class="s2">         supported in more recent HDF5 versions.&gt;</span>
diff --git a/_modules/tables/vlarray.html b/_modules/tables/vlarray.html
index dd24da7..a296d5b 100644
--- a/_modules/tables/vlarray.html
+++ b/_modules/tables/vlarray.html
@@ -3,7 +3,7 @@
 <head>
   <meta charset="utf-8" />
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>tables.vlarray &mdash; PyTables 3.8.1.dev0 documentation</title>
+  <title>tables.vlarray &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/graphviz.css" type="text/css" />
@@ -16,6 +16,7 @@
         <script src="../../_static/underscore.js"></script>
         <script src="../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../_static/doctools.js"></script>
+        <script src="../../_static/sphinx_highlight.js"></script>
     <script src="../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../genindex.html" />
     <link rel="search" title="Search" href="../../search.html" />
@@ -38,15 +39,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../index.html">
-            <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../index.html">
+            
+              <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.8.1.dev0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -78,9 +83,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../index.html">Module code</a> &raquo;</li>
-      <li>tables.vlarray</li>
+      <li><a href="../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../index.html">Module code</a></li>
+      <li class="breadcrumb-item active">tables.vlarray</li>
       <li class="wy-breadcrumbs-aside">
       </li>
   </ul>
@@ -115,7 +120,7 @@ <h1>Source code for tables.vlarray</h1><div class="highlight"><pre>
 
 
 <div class="viewcode-block" id="VLArray"><a class="viewcode-back" href="../../usersguide/libref/homogenous_storage.html#tables.VLArray">[docs]</a><span class="k">class</span> <span class="nc">VLArray</span><span class="p">(</span><span class="n">hdf5extension</span><span class="o">.</span><span class="n">VLArray</span><span class="p">,</span> <span class="n">Leaf</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;This class represents variable length (ragged) arrays in an HDF5 file.</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;This class represents variable length (ragged) arrays in an HDF5 file.</span>
 
 <span class="sd">    Instances of this class represent array objects in the object tree</span>
 <span class="sd">    with the property that their rows can have a *variable* number of</span>
@@ -298,17 +303,17 @@ <h1>Source code for tables.vlarray</h1><div class="highlight"><pre>
 
     <span class="nd">@lazyattr</span>
     <span class="k">def</span> <span class="nf">dtype</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The NumPy ``dtype`` that most closely matches this array.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The NumPy ``dtype`` that most closely matches this array.&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">atom</span><span class="o">.</span><span class="n">dtype</span>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">shape</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;The shape of the stored array.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The shape of the stored array.&quot;&quot;&quot;</span>
         <span class="k">return</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">nrows</span><span class="p">,)</span>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">size_on_disk</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;</span>
 <span class="sd">        The HDF5 library does not include a function to determine size_on_disk</span>
 <span class="sd">        for variable-length arrays.  Accessing this attribute will raise a</span>
 <span class="sd">        NotImplementedError.</span>
@@ -317,7 +322,7 @@ <h1>Source code for tables.vlarray</h1><div class="highlight"><pre>
 
     <span class="nd">@property</span>
     <span class="k">def</span> <span class="nf">size_in_memory</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;</span>
 <span class="sd">        The size of this array&#39;s data in bytes when it is fully loaded</span>
 <span class="sd">        into memory.</span>
 
@@ -340,73 +345,73 @@ <h1>Source code for tables.vlarray</h1><div class="highlight"><pre>
                  <span class="n">_log</span><span class="o">=</span><span class="kc">True</span><span class="p">,</span> <span class="n">track_times</span><span class="o">=</span><span class="kc">True</span><span class="p">):</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_version</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;The object version of this array.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The object version of this array.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_new</span> <span class="o">=</span> <span class="n">new</span> <span class="o">=</span> <span class="n">atom</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Is this the first time the node has been created?&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Is this the first time the node has been created?&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_new_title</span> <span class="o">=</span> <span class="n">title</span>
-        <span class="sd">&quot;&quot;&quot;New title for this node.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;New title for this node.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_new_filters</span> <span class="o">=</span> <span class="n">filters</span>
-        <span class="sd">&quot;&quot;&quot;New filter properties for this array.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;New filter properties for this array.&quot;&quot;&quot;</span>
 
         <span class="k">if</span> <span class="n">expectedrows</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
             <span class="n">expectedrows</span> <span class="o">=</span> <span class="n">parentnode</span><span class="o">.</span><span class="n">_v_file</span><span class="o">.</span><span class="n">params</span><span class="p">[</span><span class="s1">&#39;EXPECTED_ROWS_VLARRAY&#39;</span><span class="p">]</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_expectedrows</span> <span class="o">=</span> <span class="n">expectedrows</span>
-        <span class="sd">&quot;&quot;&quot;The expected number of rows to be stored in the array.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The expected number of rows to be stored in the array.</span>
 
 <span class="sd">        .. versionadded:: 3.0</span>
 
 <span class="sd">        &quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_chunkshape</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Private storage for the `chunkshape` property of Leaf.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Private storage for the `chunkshape` property of Leaf.&quot;&quot;&quot;</span>
 
         <span class="c1"># Miscellaneous iteration rubbish.</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_start</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Starting row for the current iteration.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Starting row for the current iteration.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_stop</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Stopping row for the current iteration.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Stopping row for the current iteration.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_step</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Step size for the current iteration.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Step size for the current iteration.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_nrowsread</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Number of rows read up to the current state of iteration.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Number of rows read up to the current state of iteration.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_startb</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Starting row for current buffer.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Starting row for current buffer.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_stopb</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Stopping row for current buffer. &quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Stopping row for current buffer. &quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_row</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Current row in iterators (sentinel).&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Current row in iterators (sentinel).&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_init</span> <span class="o">=</span> <span class="kc">False</span>
-        <span class="sd">&quot;&quot;&quot;Whether we are in the middle of an iteration or not (sentinel).&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Whether we are in the middle of an iteration or not (sentinel).&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">listarr</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;Current buffer in iterators.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Current buffer in iterators.&quot;&quot;&quot;</span>
 
         <span class="c1"># Documented (*public*) attributes.</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">atom</span> <span class="o">=</span> <span class="n">atom</span>
-        <span class="sd">&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;</span>
 <span class="sd">        An Atom (see :ref:`AtomClassDescr`) instance representing the</span>
 <span class="sd">        *type* and *shape* of the atomic objects to be saved. You may</span>
 <span class="sd">        use a *pseudo-atom* for storing a serialized object or</span>
 <span class="sd">        variable length string per row.</span>
 <span class="sd">        &quot;&quot;&quot;</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">nrow</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;On iterators, this is the index of the current row.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;On iterators, this is the index of the current row.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">nrows</span> <span class="o">=</span> <span class="kc">None</span>
-        <span class="sd">&quot;&quot;&quot;The current number of rows in the array.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The current number of rows in the array.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">extdim</span> <span class="o">=</span> <span class="mi">0</span>   <span class="c1"># VLArray only have one dimension currently</span>
-        <span class="sd">&quot;&quot;&quot;The index of the enlargeable dimension (always 0 for vlarrays).&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;The index of the enlargeable dimension (always 0 for vlarrays).&quot;&quot;&quot;</span>
 
         <span class="c1"># Check the chunkshape parameter</span>
         <span class="k">if</span> <span class="n">new</span> <span class="ow">and</span> <span class="n">chunkshape</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span><span class="p">:</span>
@@ -432,7 +437,7 @@ <h1>Source code for tables.vlarray</h1><div class="highlight"><pre>
 
     <span class="c1"># This is too specific for moving it into Leaf</span>
     <span class="k">def</span> <span class="nf">_calc_chunkshape</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">expectedrows</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Calculate the size for the HDF5 chunk.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Calculate the size for the HDF5 chunk.&quot;&quot;&quot;</span>
 
         <span class="c1"># For computing the chunkshape for HDF5 VL types, we have to</span>
         <span class="c1"># choose the itemsize of the *each* element of the atom and</span>
@@ -460,7 +465,7 @@ <h1>Source code for tables.vlarray</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="p">(</span><span class="n">SizeType</span><span class="p">(</span><span class="n">chunkshape</span><span class="p">),)</span>
 
     <span class="k">def</span> <span class="nf">_g_create</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Create a variable length array (ragged array).&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Create a variable length array (ragged array).&quot;&quot;&quot;</span>
 
         <span class="n">atom</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">atom</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_version</span> <span class="o">=</span> <span class="n">obversion</span>
@@ -503,7 +508,7 @@ <h1>Source code for tables.vlarray</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_objectid</span>
 
     <span class="k">def</span> <span class="nf">_g_open</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get the metadata info for an array in file.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get the metadata info for an array in file.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_v_objectid</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">nrows</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_chunkshape</span><span class="p">,</span> <span class="n">atom</span> <span class="o">=</span> \
             <span class="bp">self</span><span class="o">.</span><span class="n">_open_array</span><span class="p">()</span>
@@ -531,7 +536,7 @@ <h1>Source code for tables.vlarray</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v_objectid</span>
 
     <span class="k">def</span> <span class="nf">_getnobjects</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">nparr</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Return the number of objects in a NumPy array.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Return the number of objects in a NumPy array.&quot;&quot;&quot;</span>
 
         <span class="c1"># Check for zero dimensionality array</span>
         <span class="n">zerodims</span> <span class="o">=</span> <span class="n">np</span><span class="o">.</span><span class="n">sum</span><span class="p">(</span><span class="n">np</span><span class="o">.</span><span class="n">array</span><span class="p">(</span><span class="n">nparr</span><span class="o">.</span><span class="n">shape</span><span class="p">)</span> <span class="o">==</span> <span class="mi">0</span><span class="p">)</span>
@@ -568,7 +573,7 @@ <h1>Source code for tables.vlarray</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">nobjects</span>
 
 <div class="viewcode-block" id="VLArray.get_enum"><a class="viewcode-back" href="../../usersguide/libref/homogenous_storage.html#tables.VLArray.get_enum">[docs]</a>    <span class="k">def</span> <span class="nf">get_enum</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get the enumerated type associated with this array.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get the enumerated type associated with this array.</span>
 
 <span class="sd">        If this array is of an enumerated type, the corresponding Enum instance</span>
 <span class="sd">        (see :ref:`EnumClassDescr`) is returned. If it is not of an enumerated</span>
@@ -583,7 +588,7 @@ <h1>Source code for tables.vlarray</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">atom</span><span class="o">.</span><span class="n">enum</span></div>
 
 <div class="viewcode-block" id="VLArray.append"><a class="viewcode-back" href="../../usersguide/libref/homogenous_storage.html#tables.VLArray.append">[docs]</a>    <span class="k">def</span> <span class="nf">append</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">sequence</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Add a sequence of data to the end of the dataset.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Add a sequence of data to the end of the dataset.</span>
 
 <span class="sd">        This method appends the objects in the sequence to a *single row* in</span>
 <span class="sd">        this array. The type and shape of individual objects must be compliant</span>
@@ -621,7 +626,7 @@ <h1>Source code for tables.vlarray</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">nrows</span> <span class="o">+=</span> <span class="mi">1</span></div>
 
 <div class="viewcode-block" id="VLArray.iterrows"><a class="viewcode-back" href="../../usersguide/libref/homogenous_storage.html#tables.VLArray.iterrows">[docs]</a>    <span class="k">def</span> <span class="nf">iterrows</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">start</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">stop</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">step</span><span class="o">=</span><span class="kc">None</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Iterate over the rows of the array.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Iterate over the rows of the array.</span>
 
 <span class="sd">        This method returns an iterator yielding an object of the current</span>
 <span class="sd">        flavor for each selected row in the array.</span>
@@ -652,7 +657,7 @@ <h1>Source code for tables.vlarray</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span></div>
 
 <div class="viewcode-block" id="VLArray.__iter__"><a class="viewcode-back" href="../../usersguide/libref/homogenous_storage.html#tables.VLArray.__iter__">[docs]</a>    <span class="k">def</span> <span class="fm">__iter__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Iterate over the rows of the array.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Iterate over the rows of the array.</span>
 
 <span class="sd">        This is equivalent to calling :meth:`VLArray.iterrows` with default</span>
 <span class="sd">        arguments, i.e. it iterates over *all the rows* in the array.</span>
@@ -681,7 +686,7 @@ <h1>Source code for tables.vlarray</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="bp">self</span></div>
 
     <span class="k">def</span> <span class="nf">_init_loop</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Initialization for the __iter__ iterator.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Initialization for the __iter__ iterator.&quot;&quot;&quot;</span>
 
         <span class="bp">self</span><span class="o">.</span><span class="n">_nrowsread</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_start</span>
         <span class="bp">self</span><span class="o">.</span><span class="n">_startb</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_start</span>
@@ -690,7 +695,7 @@ <h1>Source code for tables.vlarray</h1><div class="highlight"><pre>
         <span class="bp">self</span><span class="o">.</span><span class="n">nrow</span> <span class="o">=</span> <span class="n">SizeType</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">_start</span> <span class="o">-</span> <span class="bp">self</span><span class="o">.</span><span class="n">_step</span><span class="p">)</span>    <span class="c1"># row number</span>
 
 <div class="viewcode-block" id="VLArray.__next__"><a class="viewcode-back" href="../../usersguide/libref/homogenous_storage.html#tables.VLArray.__next__">[docs]</a>    <span class="k">def</span> <span class="fm">__next__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get the next element of the array during an iteration.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get the next element of the array during an iteration.</span>
 
 <span class="sd">        The element is returned as a list of objects of the current</span>
 <span class="sd">        flavor.</span>
@@ -713,7 +718,7 @@ <h1>Source code for tables.vlarray</h1><div class="highlight"><pre>
             <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">listarr</span><span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">_row</span><span class="p">]</span></div>
 
 <div class="viewcode-block" id="VLArray.__getitem__"><a class="viewcode-back" href="../../usersguide/libref/homogenous_storage.html#tables.VLArray.__getitem__">[docs]</a>    <span class="k">def</span> <span class="fm">__getitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get a row or a range of rows from the array.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get a row or a range of rows from the array.</span>
 
 <span class="sd">        If key argument is an integer, the corresponding array row is returned</span>
 <span class="sd">        as an object of the current flavor.  If key is a slice, the range of</span>
@@ -764,7 +769,7 @@ <h1>Source code for tables.vlarray</h1><div class="highlight"><pre>
             <span class="k">raise</span> <span class="ne">IndexError</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Invalid index or slice: </span><span class="si">{</span><span class="n">key</span><span class="si">!r}</span><span class="s2">&quot;</span><span class="p">)</span></div>
 
     <span class="k">def</span> <span class="nf">_assign_values</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">coords</span><span class="p">,</span> <span class="n">values</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Assign the `values` to the positions stated in `coords`.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Assign the `values` to the positions stated in `coords`.&quot;&quot;&quot;</span>
 
         <span class="k">for</span> <span class="n">nrow</span><span class="p">,</span> <span class="n">value</span> <span class="ow">in</span> <span class="nb">zip</span><span class="p">(</span><span class="n">coords</span><span class="p">,</span> <span class="n">values</span><span class="p">):</span>
             <span class="k">if</span> <span class="n">nrow</span> <span class="o">&gt;=</span> <span class="bp">self</span><span class="o">.</span><span class="n">nrows</span><span class="p">:</span>
@@ -805,7 +810,7 @@ <h1>Source code for tables.vlarray</h1><div class="highlight"><pre>
                 <span class="bp">self</span><span class="o">.</span><span class="n">_modify</span><span class="p">(</span><span class="n">nrow</span><span class="p">,</span> <span class="n">nparr</span><span class="p">,</span> <span class="n">nobjects</span><span class="p">)</span>
 
 <div class="viewcode-block" id="VLArray.__setitem__"><a class="viewcode-back" href="../../usersguide/libref/homogenous_storage.html#tables.VLArray.__setitem__">[docs]</a>    <span class="k">def</span> <span class="fm">__setitem__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">key</span><span class="p">,</span> <span class="n">value</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Set a row, or set of rows, in the array.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Set a row, or set of rows, in the array.</span>
 
 <span class="sd">        It takes different actions depending on the type of the *key*</span>
 <span class="sd">        parameter: if it is an integer, the corresponding table row is</span>
@@ -870,7 +875,7 @@ <h1>Source code for tables.vlarray</h1><div class="highlight"><pre>
 
     <span class="c1"># Accessor for the _read_array method in superclass</span>
 <div class="viewcode-block" id="VLArray.read"><a class="viewcode-back" href="../../usersguide/libref/homogenous_storage.html#tables.VLArray.read">[docs]</a>    <span class="k">def</span> <span class="nf">read</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">start</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">stop</span><span class="o">=</span><span class="kc">None</span><span class="p">,</span> <span class="n">step</span><span class="o">=</span><span class="mi">1</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Get data in the array as a list of objects of the current flavor.</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Get data in the array as a list of objects of the current flavor.</span>
 
 <span class="sd">        Please note that, as the lengths of the different rows are variable,</span>
 <span class="sd">        the returned value is a *Python list* (not an array of the current</span>
@@ -903,7 +908,7 @@ <h1>Source code for tables.vlarray</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="n">outlistarr</span></div>
 
     <span class="k">def</span> <span class="nf">_read_coordinates</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">coords</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Read rows specified in `coords`.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Read rows specified in `coords`.&quot;&quot;&quot;</span>
         <span class="n">rows</span> <span class="o">=</span> <span class="p">[]</span>
         <span class="k">for</span> <span class="n">coord</span> <span class="ow">in</span> <span class="n">coords</span><span class="p">:</span>
             <span class="n">rows</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">read</span><span class="p">(</span><span class="n">idx2long</span><span class="p">(</span><span class="n">coord</span><span class="p">),</span> <span class="n">idx2long</span><span class="p">(</span><span class="n">coord</span><span class="p">)</span> <span class="o">+</span> <span class="mi">1</span><span class="p">,</span> <span class="mi">1</span><span class="p">)[</span><span class="mi">0</span><span class="p">])</span>
@@ -911,7 +916,7 @@ <h1>Source code for tables.vlarray</h1><div class="highlight"><pre>
 
     <span class="k">def</span> <span class="nf">_g_copy_with_stats</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">group</span><span class="p">,</span> <span class="n">name</span><span class="p">,</span> <span class="n">start</span><span class="p">,</span> <span class="n">stop</span><span class="p">,</span> <span class="n">step</span><span class="p">,</span>
                            <span class="n">title</span><span class="p">,</span> <span class="n">filters</span><span class="p">,</span> <span class="n">chunkshape</span><span class="p">,</span> <span class="n">_log</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;Private part of Leaf.copy() for each kind of leaf.&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;Private part of Leaf.copy() for each kind of leaf.&quot;&quot;&quot;</span>
 
         <span class="c1"># Build the new VLArray object</span>
         <span class="nb">object</span> <span class="o">=</span> <span class="n">VLArray</span><span class="p">(</span>
@@ -947,12 +952,12 @@ <h1>Source code for tables.vlarray</h1><div class="highlight"><pre>
         <span class="k">return</span> <span class="p">(</span><span class="nb">object</span><span class="p">,</span> <span class="n">nbytes</span><span class="p">)</span>
 
     <span class="k">def</span> <span class="fm">__repr__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
-        <span class="sd">&quot;&quot;&quot;This provides more metainfo in addition to standard __str__&quot;&quot;&quot;</span>
+<span class="w">        </span><span class="sd">&quot;&quot;&quot;This provides more metainfo in addition to standard __str__&quot;&quot;&quot;</span>
 
-        <span class="k">return</span> <span class="sa">f</span><span class="s2">&quot;&quot;&quot;</span><span class="si">{</span><span class="bp">self</span><span class="si">}</span><span class="s2"></span>
-<span class="s2">  atom = </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">atom</span><span class="si">!r}</span><span class="s2"></span>
-<span class="s2">  byteorder = </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">byteorder</span><span class="si">!r}</span><span class="s2"></span>
-<span class="s2">  nrows = </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">nrows</span><span class="si">}</span><span class="s2"></span>
+        <span class="k">return</span> <span class="sa">f</span><span class="s2">&quot;&quot;&quot;</span><span class="si">{</span><span class="bp">self</span><span class="si">}</span>
+<span class="s2">  atom = </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">atom</span><span class="si">!r}</span>
+<span class="s2">  byteorder = </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">byteorder</span><span class="si">!r}</span>
+<span class="s2">  nrows = </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">nrows</span><span class="si">}</span>
 <span class="s2">  flavor = </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">flavor</span><span class="si">!r}</span><span class="s2">&quot;&quot;&quot;</span></div>
 </pre></div>
 
diff --git a/_sources/usersguide/installation.rst.txt b/_sources/usersguide/installation.rst.txt
index 49519a3..c3c0053 100644
--- a/_sources/usersguide/installation.rst.txt
+++ b/_sources/usersguide/installation.rst.txt
@@ -59,7 +59,7 @@ If you don't, fetch and install them before proceeding.
 .. Keep entries from NumPy on in sync with ``project.dependencies`` in ``pyproject.toml``.
 .. Keep system packages in sync with build jobs in `.github/workflows/*.yml`.
 
-* Python_ >= 3.9 (Python 3.8 may work, but you may need to build/test yourself)
+* Python_ >= 3.9
 * HDF5_ >= 1.10.5 (although 1.14.0 or later is strongly recommended)
 * Cython_ >= 0.29.32
 * NumPy_ >= 1.19.0
diff --git a/_static/css/badge_only.css b/_static/css/badge_only.css
index e380325..c718cee 100644
--- a/_static/css/badge_only.css
+++ b/_static/css/badge_only.css
@@ -1 +1 @@
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\ No newline at end of file
+.clearfix{*zoom:1}.clearfix:after,.clearfix:before{display:table;content:""}.clearfix:after{clear:both}@font-face{font-family:FontAwesome;font-style:normal;font-weight:400;src:url(fonts/fontawesome-webfont.eot?674f50d287a8c48dc19ba404d20fe713?#iefix) format("embedded-opentype"),url(fonts/fontawesome-webfont.woff2?af7ae505a9eed503f8b8e6982036873e) format("woff2"),url(fonts/fontawesome-webfont.woff?fee66e712a8a08eef5805a46892932ad) format("woff"),url(fonts/fontawesome-webfont.ttf?b06871f281fee6b241d60582ae9369b9) format("truetype"),url(fonts/fontawesome-webfont.svg?912ec66d7572ff821749319396470bde#FontAwesome) format("svg")}.fa:before{font-family:FontAwesome;font-style:normal;font-weight:400;line-height:1}.fa:before,a .fa{text-decoration:inherit}.fa:before,a .fa,li .fa{display:inline-block}li .fa-large:before{width:1.875em}ul.fas{list-style-type:none;margin-left:2em;text-indent:-.8em}ul.fas li .fa{width:.8em}ul.fas li .fa-large:before{vertical-align:baseline}.fa-book:before,.icon-book:before{content:"\f02d"}.fa-caret-down:before,.icon-caret-down:before{content:"\f0d7"}.fa-caret-up:before,.icon-caret-up:before{content:"\f0d8"}.fa-caret-left:before,.icon-caret-left:before{content:"\f0d9"}.fa-caret-right:before,.icon-caret-right:before{content:"\f0da"}.rst-versions{position:fixed;bottom:0;left:0;width:300px;color:#fcfcfc;background:#1f1d1d;font-family:Lato,proxima-nova,Helvetica Neue,Arial,sans-serif;z-index:400}.rst-versions a{color:#2980b9;text-decoration:none}.rst-versions .rst-badge-small{display:none}.rst-versions .rst-current-version{padding:12px;background-color:#272525;display:block;text-align:right;font-size:90%;cursor:pointer;color:#27ae60}.rst-versions .rst-current-version:after{clear:both;content:"";display:block}.rst-versions .rst-current-version .fa{color:#fcfcfc}.rst-versions .rst-current-version .fa-book,.rst-versions .rst-current-version .icon-book{float:left}.rst-versions .rst-current-version.rst-out-of-date{background-color:#e74c3c;color:#fff}.rst-versions .rst-current-version.rst-active-old-version{background-color:#f1c40f;color:#000}.rst-versions.shift-up{height:auto;max-height:100%;overflow-y:scroll}.rst-versions.shift-up .rst-other-versions{display:block}.rst-versions .rst-other-versions{font-size:90%;padding:12px;color:grey;display:none}.rst-versions .rst-other-versions hr{display:block;height:1px;border:0;margin:20px 0;padding:0;border-top:1px solid #413d3d}.rst-versions .rst-other-versions dd{display:inline-block;margin:0}.rst-versions .rst-other-versions dd a{display:inline-block;padding:6px;color:#fcfcfc}.rst-versions.rst-badge{width:auto;bottom:20px;right:20px;left:auto;border:none;max-width:300px;max-height:90%}.rst-versions.rst-badge .fa-book,.rst-versions.rst-badge .icon-book{float:none;line-height:30px}.rst-versions.rst-badge.shift-up .rst-current-version{text-align:right}.rst-versions.rst-badge.shift-up .rst-current-version .fa-book,.rst-versions.rst-badge.shift-up .rst-current-version .icon-book{float:left}.rst-versions.rst-badge>.rst-current-version{width:auto;height:30px;line-height:30px;padding:0 6px;display:block;text-align:center}@media screen and (max-width:768px){.rst-versions{width:85%;display:none}.rst-versions.shift{display:block}}
\ No newline at end of file
diff --git a/_static/css/theme.css b/_static/css/theme.css
index 0d9ae7e..19a446a 100644
--- a/_static/css/theme.css
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.rst-content aside.footnote p,html.writer-html5 .rst-content div.citation p{font-size:.9rem;line-height:1.2rem;margin-bottom:12px}html.writer-html5 .rst-content aside.citation span.backrefs,html.writer-html5 .rst-content aside.footnote span.backrefs,html.writer-html5 .rst-content div.citation span.backrefs{text-align:left;font-style:italic;margin-left:.65rem;word-break:break-word;word-spacing:-.1rem;max-width:5rem}html.writer-html5 .rst-content aside.citation span.backrefs>a,html.writer-html5 .rst-content aside.footnote span.backrefs>a,html.writer-html5 .rst-content div.citation span.backrefs>a{word-break:keep-all}html.writer-html5 .rst-content aside.citation span.backrefs>a:not(:first-child):before,html.writer-html5 .rst-content aside.footnote span.backrefs>a:not(:first-child):before,html.writer-html5 .rst-content div.citation span.backrefs>a:not(:first-child):before{content:" "}html.writer-html5 .rst-content aside.citation span.label,html.writer-html5 .rst-content aside.footnote span.label,html.writer-html5 .rst-content div.citation span.label{line-height:1.2rem}html.writer-html5 .rst-content aside.citation-list,html.writer-html5 .rst-content aside.footnote-list,html.writer-html5 .rst-content div.citation-list{margin-bottom:24px}html.writer-html5 .rst-content dl.option-list kbd{font-size:.9rem}.rst-content table.docutils.footnote,html.writer-html4 .rst-content table.docutils.citation,html.writer-html5 .rst-content aside.footnote,html.writer-html5 .rst-content aside.footnote-list aside.footnote,html.writer-html5 .rst-content div.citation-list>div.citation,html.writer-html5 .rst-content dl.citation,html.writer-html5 .rst-content dl.footnote{color:grey}.rst-content table.docutils.footnote code,.rst-content table.docutils.footnote tt,html.writer-html4 .rst-content table.docutils.citation code,html.writer-html4 .rst-content table.docutils.citation tt,html.writer-html5 .rst-content aside.footnote-list aside.footnote code,html.writer-html5 .rst-content aside.footnote-list aside.footnote tt,html.writer-html5 .rst-content aside.footnote code,html.writer-html5 .rst-content aside.footnote tt,html.writer-html5 .rst-content div.citation-list>div.citation code,html.writer-html5 .rst-content div.citation-list>div.citation tt,html.writer-html5 .rst-content dl.citation code,html.writer-html5 .rst-content dl.citation tt,html.writer-html5 .rst-content dl.footnote code,html.writer-html5 .rst-content dl.footnote tt{color:#555}.rst-content .wy-table-responsive.citation,.rst-content .wy-table-responsive.footnote{margin-bottom:0}.rst-content .wy-table-responsive.citation+:not(.citation),.rst-content .wy-table-responsive.footnote+:not(.footnote){margin-top:24px}.rst-content .wy-table-responsive.citation:last-child,.rst-content .wy-table-responsive.footnote:last-child{margin-bottom:24px}.rst-content table.docutils th{border-color:#e1e4e5}html.writer-html5 .rst-content table.docutils th{border:1px solid #e1e4e5}html.writer-html5 .rst-content table.docutils td>p,html.writer-html5 .rst-content table.docutils th>p{line-height:1rem;margin-bottom:0;font-size:.9rem}.rst-content table.docutils td .last,.rst-content table.docutils td .last>:last-child{margin-bottom:0}.rst-content table.field-list,.rst-content table.field-list td{border:none}.rst-content table.field-list td p{line-height:inherit}.rst-content table.field-list td>strong{display:inline-block}.rst-content table.field-list .field-name{padding-right:10px;text-align:left;white-space:nowrap}.rst-content table.field-list .field-body{text-align:left}.rst-content code,.rst-content tt{color:#000;font-family:SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,Courier,monospace;padding:2px 5px}.rst-content code big,.rst-content code em,.rst-content tt big,.rst-content tt em{font-size:100%!important;line-height:normal}.rst-content code.literal,.rst-content tt.literal{color:#e74c3c;white-space:normal}.rst-content code.xref,.rst-content tt.xref,a .rst-content code,a .rst-content tt{font-weight:700;color:#404040;overflow-wrap:normal}.rst-content kbd,.rst-content pre,.rst-content samp{font-family:SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,Courier,monospace}.rst-content a code,.rst-content a tt{color:#2980b9}.rst-content dl{margin-bottom:24px}.rst-content dl dt{font-weight:700;margin-bottom:12px}.rst-content dl ol,.rst-content dl p,.rst-content dl table,.rst-content dl ul{margin-bottom:12px}.rst-content dl dd{margin:0 0 12px 24px;line-height:24px}.rst-content dl dd>ol:last-child,.rst-content dl dd>p:last-child,.rst-content dl dd>table:last-child,.rst-content dl dd>ul:last-child{margin-bottom:0}html.writer-html4 .rst-content dl:not(.docutils),html.writer-html5 .rst-content dl[class]:not(.option-list):not(.field-list):not(.footnote):not(.citation):not(.glossary):not(.simple){margin-bottom:24px}html.writer-html4 .rst-content dl:not(.docutils)>dt,html.writer-html5 .rst-content dl[class]:not(.option-list):not(.field-list):not(.footnote):not(.citation):not(.glossary):not(.simple)>dt{display:table;margin:6px 0;font-size:90%;line-height:normal;background:#e7f2fa;color:#2980b9;border-top:3px solid #6ab0de;padding:6px;position:relative}html.writer-html4 .rst-content dl:not(.docutils)>dt:before,html.writer-html5 .rst-content dl[class]:not(.option-list):not(.field-list):not(.footnote):not(.citation):not(.glossary):not(.simple)>dt:before{color:#6ab0de}html.writer-html4 .rst-content dl:not(.docutils)>dt .headerlink,html.writer-html5 .rst-content dl[class]:not(.option-list):not(.field-list):not(.footnote):not(.citation):not(.glossary):not(.simple)>dt .headerlink{color:#404040;font-size:100%!important}html.writer-html4 .rst-content dl:not(.docutils) dl:not(.option-list):not(.field-list):not(.footnote):not(.citation):not(.glossary):not(.simple)>dt,html.writer-html5 .rst-content dl[class]:not(.option-list):not(.field-list):not(.footnote):not(.citation):not(.glossary):not(.simple) dl:not(.option-list):not(.field-list):not(.footnote):not(.citation):not(.glossary):not(.simple)>dt{margin-bottom:6px;border:none;border-left:3px solid #ccc;background:#f0f0f0;color:#555}html.writer-html4 .rst-content dl:not(.docutils) dl:not(.option-list):not(.field-list):not(.footnote):not(.citation):not(.glossary):not(.simple)>dt .headerlink,html.writer-html5 .rst-content dl[class]:not(.option-list):not(.field-list):not(.footnote):not(.citation):not(.glossary):not(.simple) dl:not(.option-list):not(.field-list):not(.footnote):not(.citation):not(.glossary):not(.simple)>dt .headerlink{color:#404040;font-size:100%!important}html.writer-html4 .rst-content dl:not(.docutils)>dt:first-child,html.writer-html5 .rst-content dl[class]:not(.option-list):not(.field-list):not(.footnote):not(.citation):not(.glossary):not(.simple)>dt:first-child{margin-top:0}html.writer-html4 .rst-content dl:not(.docutils) code.descclassname,html.writer-html4 .rst-content dl:not(.docutils) code.descname,html.writer-html4 .rst-content dl:not(.docutils) tt.descclassname,html.writer-html4 .rst-content dl:not(.docutils) tt.descname,html.writer-html5 .rst-content dl[class]:not(.option-list):not(.field-list):not(.footnote):not(.citation):not(.glossary):not(.simple) code.descclassname,html.writer-html5 .rst-content dl[class]:not(.option-list):not(.field-list):not(.footnote):not(.citation):not(.glossary):not(.simple) code.descname,html.writer-html5 .rst-content dl[class]:not(.option-list):not(.field-list):not(.footnote):not(.citation):not(.glossary):not(.simple) tt.descclassname,html.writer-html5 .rst-content dl[class]:not(.option-list):not(.field-list):not(.footnote):not(.citation):not(.glossary):not(.simple) tt.descname{background-color:transparent;border:none;padding:0;font-size:100%!important}html.writer-html4 .rst-content dl:not(.docutils) code.descname,html.writer-html4 .rst-content dl:not(.docutils) tt.descname,html.writer-html5 .rst-content dl[class]:not(.option-list):not(.field-list):not(.footnote):not(.citation):not(.glossary):not(.simple) code.descname,html.writer-html5 .rst-content dl[class]:not(.option-list):not(.field-list):not(.footnote):not(.citation):not(.glossary):not(.simple) tt.descname{font-weight:700}html.writer-html4 .rst-content dl:not(.docutils) .optional,html.writer-html5 .rst-content dl[class]:not(.option-list):not(.field-list):not(.footnote):not(.citation):not(.glossary):not(.simple) .optional{display:inline-block;padding:0 4px;color:#000;font-weight:700}html.writer-html4 .rst-content dl:not(.docutils) .property,html.writer-html5 .rst-content dl[class]:not(.option-list):not(.field-list):not(.footnote):not(.citation):not(.glossary):not(.simple) .property{display:inline-block;padding-right:8px;max-width:100%}html.writer-html4 .rst-content dl:not(.docutils) .k,html.writer-html5 .rst-content dl[class]:not(.option-list):not(.field-list):not(.footnote):not(.citation):not(.glossary):not(.simple) .k{font-style:italic}html.writer-html4 .rst-content dl:not(.docutils) .descclassname,html.writer-html4 .rst-content dl:not(.docutils) .descname,html.writer-html4 .rst-content dl:not(.docutils) .sig-name,html.writer-html5 .rst-content dl[class]:not(.option-list):not(.field-list):not(.footnote):not(.citation):not(.glossary):not(.simple) .descclassname,html.writer-html5 .rst-content dl[class]:not(.option-list):not(.field-list):not(.footnote):not(.citation):not(.glossary):not(.simple) .descname,html.writer-html5 .rst-content dl[class]:not(.option-list):not(.field-list):not(.footnote):not(.citation):not(.glossary):not(.simple) .sig-name{font-family:SFMono-Regular,Menlo,Monaco,Consolas,Liberation Mono,Courier New,Courier,monospace;color:#000}.rst-content .viewcode-back,.rst-content .viewcode-link{display:inline-block;color:#27ae60;font-size:80%;padding-left:24px}.rst-content 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\ No newline at end of file
diff --git a/_static/doctools.js b/_static/doctools.js
index c3db08d..527b876 100644
--- a/_static/doctools.js
+++ b/_static/doctools.js
@@ -10,6 +10,13 @@
  */
 "use strict";
 
+const BLACKLISTED_KEY_CONTROL_ELEMENTS = new Set([
+  "TEXTAREA",
+  "INPUT",
+  "SELECT",
+  "BUTTON",
+]);
+
 const _ready = (callback) => {
   if (document.readyState !== "loading") {
     callback();
@@ -18,73 +25,11 @@ const _ready = (callback) => {
   }
 };
 
-/**
- * highlight a given string on a node by wrapping it in
- * span elements with the given class name.
- */
-const _highlight = (node, addItems, text, className) => {
-  if (node.nodeType === Node.TEXT_NODE) {
-    const val = node.nodeValue;
-    const parent = node.parentNode;
-    const pos = val.toLowerCase().indexOf(text);
-    if (
-      pos >= 0 &&
-      !parent.classList.contains(className) &&
-      !parent.classList.contains("nohighlight")
-    ) {
-      let span;
-
-      const closestNode = parent.closest("body, svg, foreignObject");
-      const isInSVG = closestNode && closestNode.matches("svg");
-      if (isInSVG) {
-        span = document.createElementNS("http://www.w3.org/2000/svg", "tspan");
-      } else {
-        span = document.createElement("span");
-        span.classList.add(className);
-      }
-
-      span.appendChild(document.createTextNode(val.substr(pos, text.length)));
-      parent.insertBefore(
-        span,
-        parent.insertBefore(
-          document.createTextNode(val.substr(pos + text.length)),
-          node.nextSibling
-        )
-      );
-      node.nodeValue = val.substr(0, pos);
-
-      if (isInSVG) {
-        const rect = document.createElementNS(
-          "http://www.w3.org/2000/svg",
-          "rect"
-        );
-        const bbox = parent.getBBox();
-        rect.x.baseVal.value = bbox.x;
-        rect.y.baseVal.value = bbox.y;
-        rect.width.baseVal.value = bbox.width;
-        rect.height.baseVal.value = bbox.height;
-        rect.setAttribute("class", className);
-        addItems.push({ parent: parent, target: rect });
-      }
-    }
-  } else if (node.matches && !node.matches("button, select, textarea")) {
-    node.childNodes.forEach((el) => _highlight(el, addItems, text, className));
-  }
-};
-const _highlightText = (thisNode, text, className) => {
-  let addItems = [];
-  _highlight(thisNode, addItems, text, className);
-  addItems.forEach((obj) =>
-    obj.parent.insertAdjacentElement("beforebegin", obj.target)
-  );
-};
-
 /**
  * Small JavaScript module for the documentation.
  */
 const Documentation = {
   init: () => {
-    Documentation.highlightSearchWords();
     Documentation.initDomainIndexTable();
     Documentation.initOnKeyListeners();
   },
@@ -126,51 +71,6 @@ const Documentation = {
     Documentation.LOCALE = catalog.locale;
   },
 
-  /**
-   * highlight the search words provided in the url in the text
-   */
-  highlightSearchWords: () => {
-    const highlight =
-      new URLSearchParams(window.location.search).get("highlight") || "";
-    const terms = highlight.toLowerCase().split(/\s+/).filter(x => x);
-    if (terms.length === 0) return; // nothing to do
-
-    // There should never be more than one element matching "div.body"
-    const divBody = document.querySelectorAll("div.body");
-    const body = divBody.length ? divBody[0] : document.querySelector("body");
-    window.setTimeout(() => {
-      terms.forEach((term) => _highlightText(body, term, "highlighted"));
-    }, 10);
-
-    const searchBox = document.getElementById("searchbox");
-    if (searchBox === null) return;
-    searchBox.appendChild(
-      document
-        .createRange()
-        .createContextualFragment(
-          '<p class="highlight-link">' +
-            '<a href="javascript:Documentation.hideSearchWords()">' +
-            Documentation.gettext("Hide Search Matches") +
-            "</a></p>"
-        )
-    );
-  },
-
-  /**
-   * helper function to hide the search marks again
-   */
-  hideSearchWords: () => {
-    document
-      .querySelectorAll("#searchbox .highlight-link")
-      .forEach((el) => el.remove());
-    document
-      .querySelectorAll("span.highlighted")
-      .forEach((el) => el.classList.remove("highlighted"));
-    const url = new URL(window.location);
-    url.searchParams.delete("highlight");
-    window.history.replaceState({}, "", url);
-  },
-
   /**
    * helper function to focus on search bar
    */
@@ -210,15 +110,11 @@ const Documentation = {
     )
       return;
 
-    const blacklistedElements = new Set([
-      "TEXTAREA",
-      "INPUT",
-      "SELECT",
-      "BUTTON",
-    ]);
     document.addEventListener("keydown", (event) => {
-      if (blacklistedElements.has(document.activeElement.tagName)) return; // bail for input elements
-      if (event.altKey || event.ctrlKey || event.metaKey) return; // bail with special keys
+      // bail for input elements
+      if (BLACKLISTED_KEY_CONTROL_ELEMENTS.has(document.activeElement.tagName)) return;
+      // bail with special keys
+      if (event.altKey || event.ctrlKey || event.metaKey) return;
 
       if (!event.shiftKey) {
         switch (event.key) {
@@ -240,10 +136,6 @@ const Documentation = {
               event.preventDefault();
             }
             break;
-          case "Escape":
-            if (!DOCUMENTATION_OPTIONS.ENABLE_SEARCH_SHORTCUTS) break;
-            Documentation.hideSearchWords();
-            event.preventDefault();
         }
       }
 
diff --git a/_static/documentation_options.js b/_static/documentation_options.js
index bbc5334..d2d031d 100644
--- a/_static/documentation_options.js
+++ b/_static/documentation_options.js
@@ -1,6 +1,6 @@
 var DOCUMENTATION_OPTIONS = {
     URL_ROOT: document.getElementById("documentation_options").getAttribute('data-url_root'),
-    VERSION: '3.9.0',
+    VERSION: '3.9.1',
     LANGUAGE: 'en',
     COLLAPSE_INDEX: false,
     BUILDER: 'html',
diff --git a/_static/pygments.css b/_static/pygments.css
index 691aeb8..0d49244 100644
--- a/_static/pygments.css
+++ b/_static/pygments.css
@@ -17,6 +17,7 @@ span.linenos.special { color: #000000; background-color: #ffffc0; padding-left:
 .highlight .cs { color: #408090; background-color: #fff0f0 } /* Comment.Special */
 .highlight .gd { color: #A00000 } /* Generic.Deleted */
 .highlight .ge { font-style: italic } /* Generic.Emph */
+.highlight .ges { font-weight: bold; font-style: italic } /* Generic.EmphStrong */
 .highlight .gr { color: #FF0000 } /* Generic.Error */
 .highlight .gh { color: #000080; font-weight: bold } /* Generic.Heading */
 .highlight .gi { color: #00A000 } /* Generic.Inserted */
diff --git a/_static/searchtools.js b/_static/searchtools.js
index f2fb7d5..e89e34d 100644
--- a/_static/searchtools.js
+++ b/_static/searchtools.js
@@ -57,14 +57,14 @@ const _removeChildren = (element) => {
 const _escapeRegExp = (string) =>
   string.replace(/[.*+\-?^${}()|[\]\\]/g, "\\$&"); // $& means the whole matched string
 
-const _displayItem = (item, highlightTerms, searchTerms) => {
+const _displayItem = (item, searchTerms) => {
   const docBuilder = DOCUMENTATION_OPTIONS.BUILDER;
   const docUrlRoot = DOCUMENTATION_OPTIONS.URL_ROOT;
   const docFileSuffix = DOCUMENTATION_OPTIONS.FILE_SUFFIX;
   const docLinkSuffix = DOCUMENTATION_OPTIONS.LINK_SUFFIX;
   const showSearchSummary = DOCUMENTATION_OPTIONS.SHOW_SEARCH_SUMMARY;
 
-  const [docName, title, anchor, descr] = item;
+  const [docName, title, anchor, descr, score, _filename] = item;
 
   let listItem = document.createElement("li");
   let requestUrl;
@@ -82,10 +82,9 @@ const _displayItem = (item, highlightTerms, searchTerms) => {
     requestUrl = docUrlRoot + docName + docFileSuffix;
     linkUrl = docName + docLinkSuffix;
   }
-  const params = new URLSearchParams();
-  params.set("highlight", [...highlightTerms].join(" "));
   let linkEl = listItem.appendChild(document.createElement("a"));
-  linkEl.href = linkUrl + "?" + params.toString() + anchor;
+  linkEl.href = linkUrl + anchor;
+  linkEl.dataset.score = score;
   linkEl.innerHTML = title;
   if (descr)
     listItem.appendChild(document.createElement("span")).innerHTML =
@@ -96,7 +95,7 @@ const _displayItem = (item, highlightTerms, searchTerms) => {
       .then((data) => {
         if (data)
           listItem.appendChild(
-            Search.makeSearchSummary(data, searchTerms, highlightTerms)
+            Search.makeSearchSummary(data, searchTerms)
           );
       });
   Search.output.appendChild(listItem);
@@ -116,15 +115,14 @@ const _finishSearch = (resultCount) => {
 const _displayNextItem = (
   results,
   resultCount,
-  highlightTerms,
   searchTerms
 ) => {
   // results left, load the summary and display it
   // this is intended to be dynamic (don't sub resultsCount)
   if (results.length) {
-    _displayItem(results.pop(), highlightTerms, searchTerms);
+    _displayItem(results.pop(), searchTerms);
     setTimeout(
-      () => _displayNextItem(results, resultCount, highlightTerms, searchTerms),
+      () => _displayNextItem(results, resultCount, searchTerms),
       5
     );
   }
@@ -237,6 +235,12 @@ const Search = {
    * execute search (requires search index to be loaded)
    */
   query: (query) => {
+    const filenames = Search._index.filenames;
+    const docNames = Search._index.docnames;
+    const titles = Search._index.titles;
+    const allTitles = Search._index.alltitles;
+    const indexEntries = Search._index.indexentries;
+
     // stem the search terms and add them to the correct list
     const stemmer = new Stemmer();
     const searchTerms = new Set();
@@ -264,6 +268,10 @@ const Search = {
       }
     });
 
+    if (SPHINX_HIGHLIGHT_ENABLED) {  // set in sphinx_highlight.js
+      localStorage.setItem("sphinx_highlight_terms", [...highlightTerms].join(" "))
+    }
+
     // console.debug("SEARCH: searching for:");
     // console.info("required: ", [...searchTerms]);
     // console.info("excluded: ", [...excludedTerms]);
@@ -272,6 +280,40 @@ const Search = {
     let results = [];
     _removeChildren(document.getElementById("search-progress"));
 
+    const queryLower = query.toLowerCase();
+    for (const [title, foundTitles] of Object.entries(allTitles)) {
+      if (title.toLowerCase().includes(queryLower) && (queryLower.length >= title.length/2)) {
+        for (const [file, id] of foundTitles) {
+          let score = Math.round(100 * queryLower.length / title.length)
+          results.push([
+            docNames[file],
+            titles[file] !== title ? `${titles[file]} > ${title}` : title,
+            id !== null ? "#" + id : "",
+            null,
+            score,
+            filenames[file],
+          ]);
+        }
+      }
+    }
+
+    // search for explicit entries in index directives
+    for (const [entry, foundEntries] of Object.entries(indexEntries)) {
+      if (entry.includes(queryLower) && (queryLower.length >= entry.length/2)) {
+        for (const [file, id] of foundEntries) {
+          let score = Math.round(100 * queryLower.length / entry.length)
+          results.push([
+            docNames[file],
+            titles[file],
+            id ? "#" + id : "",
+            null,
+            score,
+            filenames[file],
+          ]);
+        }
+      }
+    }
+
     // lookup as object
     objectTerms.forEach((term) =>
       results.push(...Search.performObjectSearch(term, objectTerms))
@@ -318,7 +360,7 @@ const Search = {
     // console.info("search results:", Search.lastresults);
 
     // print the results
-    _displayNextItem(results, results.length, highlightTerms, searchTerms);
+    _displayNextItem(results, results.length, searchTerms);
   },
 
   /**
@@ -399,8 +441,8 @@ const Search = {
     // prepare search
     const terms = Search._index.terms;
     const titleTerms = Search._index.titleterms;
-    const docNames = Search._index.docnames;
     const filenames = Search._index.filenames;
+    const docNames = Search._index.docnames;
     const titles = Search._index.titles;
 
     const scoreMap = new Map();
@@ -497,11 +539,9 @@ const Search = {
   /**
    * helper function to return a node containing the
    * search summary for a given text. keywords is a list
-   * of stemmed words, highlightWords is the list of normal, unstemmed
-   * words. the first one is used to find the occurrence, the
-   * latter for highlighting it.
+   * of stemmed words.
    */
-  makeSearchSummary: (htmlText, keywords, highlightWords) => {
+  makeSearchSummary: (htmlText, keywords) => {
     const text = Search.htmlToText(htmlText);
     if (text === "") return null;
 
@@ -519,10 +559,6 @@ const Search = {
     summary.classList.add("context");
     summary.textContent = top + text.substr(startWithContext, 240).trim() + tail;
 
-    highlightWords.forEach((highlightWord) =>
-      _highlightText(summary, highlightWord, "highlighted")
-    );
-
     return summary;
   },
 };
diff --git a/_static/sphinx_highlight.js b/_static/sphinx_highlight.js
index 8a96c69..aae669d 100644
--- a/_static/sphinx_highlight.js
+++ b/_static/sphinx_highlight.js
@@ -29,19 +29,14 @@ const _highlight = (node, addItems, text, className) => {
       }
 
       span.appendChild(document.createTextNode(val.substr(pos, text.length)));
-      const rest = document.createTextNode(val.substr(pos + text.length));
       parent.insertBefore(
         span,
         parent.insertBefore(
-          rest,
+          document.createTextNode(val.substr(pos + text.length)),
           node.nextSibling
         )
       );
       node.nodeValue = val.substr(0, pos);
-      /* There may be more occurrences of search term in this node. So call this
-       * function recursively on the remaining fragment.
-       */
-      _highlight(rest, addItems, text, className);
 
       if (isInSVG) {
         const rect = document.createElementNS(
@@ -145,10 +140,5 @@ const SphinxHighlight = {
   },
 };
 
-_ready(() => {
-  /* Do not call highlightSearchWords() when we are on the search page.
-   * It will highlight words from the *previous* search query.
-   */
-  if (typeof Search === "undefined") SphinxHighlight.highlightSearchWords();
-  SphinxHighlight.initEscapeListener();
-});
+_ready(SphinxHighlight.highlightSearchWords);
+_ready(SphinxHighlight.initEscapeListener);
diff --git a/cookbook/custom_data_types.html b/cookbook/custom_data_types.html
index 611278c..1192396 100644
--- a/cookbook/custom_data_types.html
+++ b/cookbook/custom_data_types.html
@@ -1,10 +1,10 @@
 <!DOCTYPE html>
 <html class="writer-html5" lang="en" >
 <head>
-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Using your own custom data types &mdash; PyTables 3.9.0 documentation</title>
+  <title>Using your own custom data types &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../_static/graphviz.css" type="text/css" />
@@ -17,6 +17,7 @@
         <script src="../_static/underscore.js"></script>
         <script src="../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../_static/doctools.js"></script>
+        <script src="../_static/sphinx_highlight.js"></script>
     <script src="../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../genindex.html" />
     <link rel="search" title="Search" href="../search.html" />
@@ -41,15 +42,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../index.html">
-            <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../index.html">
+            
+              <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -94,9 +99,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="index.html">PyTables Cookbook</a> &raquo;</li>
-      <li>Using your own custom data types</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="index.html">PyTables Cookbook</a></li>
+      <li class="breadcrumb-item active">Using your own custom data types</li>
       <li class="wy-breadcrumbs-aside">
             <a href="../_sources/cookbook/custom_data_types.rst.txt" rel="nofollow"> View page source</a>
       </li>
diff --git a/cookbook/hints_for_sql_users.html b/cookbook/hints_for_sql_users.html
index 360029b..defb3c3 100644
--- a/cookbook/hints_for_sql_users.html
+++ b/cookbook/hints_for_sql_users.html
@@ -1,10 +1,10 @@
 <!DOCTYPE html>
 <html class="writer-html5" lang="en" >
 <head>
-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Hints for SQL users &mdash; PyTables 3.9.0 documentation</title>
+  <title>Hints for SQL users &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../_static/graphviz.css" type="text/css" />
@@ -17,6 +17,7 @@
         <script src="../_static/underscore.js"></script>
         <script src="../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../_static/doctools.js"></script>
+        <script src="../_static/sphinx_highlight.js"></script>
     <script src="../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../genindex.html" />
     <link rel="search" title="Search" href="../search.html" />
@@ -41,15 +42,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../index.html">
-            <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../index.html">
+            
+              <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -110,9 +115,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="index.html">PyTables Cookbook</a> &raquo;</li>
-      <li>Hints for SQL users</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="index.html">PyTables Cookbook</a></li>
+      <li class="breadcrumb-item active">Hints for SQL users</li>
       <li class="wy-breadcrumbs-aside">
             <a href="../_sources/cookbook/hints_for_sql_users.rst.txt" rel="nofollow"> View page source</a>
       </li>
diff --git a/cookbook/index.html b/cookbook/index.html
index cc4d034..2c964fb 100644
--- a/cookbook/index.html
+++ b/cookbook/index.html
@@ -1,10 +1,10 @@
 <!DOCTYPE html>
 <html class="writer-html5" lang="en" >
 <head>
-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>PyTables Cookbook &mdash; PyTables 3.9.0 documentation</title>
+  <title>PyTables Cookbook &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../_static/graphviz.css" type="text/css" />
@@ -17,6 +17,7 @@
         <script src="../_static/underscore.js"></script>
         <script src="../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../_static/doctools.js"></script>
+        <script src="../_static/sphinx_highlight.js"></script>
     <script src="../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../genindex.html" />
     <link rel="search" title="Search" href="../search.html" />
@@ -41,15 +42,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../index.html">
-            <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../index.html">
+            
+              <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -94,8 +99,8 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../index.html" class="icon icon-home"></a> &raquo;</li>
-      <li>PyTables Cookbook</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+      <li class="breadcrumb-item active">PyTables Cookbook</li>
       <li class="wy-breadcrumbs-aside">
             <a href="../_sources/cookbook/index.rst.txt" rel="nofollow"> View page source</a>
       </li>
diff --git a/cookbook/inmemory_hdf5_files.html b/cookbook/inmemory_hdf5_files.html
index 157adfc..601c515 100644
--- a/cookbook/inmemory_hdf5_files.html
+++ b/cookbook/inmemory_hdf5_files.html
@@ -1,10 +1,10 @@
 <!DOCTYPE html>
 <html class="writer-html5" lang="en" >
 <head>
-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>In-memory HDF5 files &mdash; PyTables 3.9.0 documentation</title>
+  <title>In-memory HDF5 files &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../_static/graphviz.css" type="text/css" />
@@ -17,6 +17,7 @@
         <script src="../_static/underscore.js"></script>
         <script src="../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../_static/doctools.js"></script>
+        <script src="../_static/sphinx_highlight.js"></script>
     <script src="../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../genindex.html" />
     <link rel="search" title="Search" href="../search.html" />
@@ -41,15 +42,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../index.html">
-            <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../index.html">
+            
+              <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -100,9 +105,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="index.html">PyTables Cookbook</a> &raquo;</li>
-      <li>In-memory HDF5 files</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="index.html">PyTables Cookbook</a></li>
+      <li class="breadcrumb-item active">In-memory HDF5 files</li>
       <li class="wy-breadcrumbs-aside">
             <a href="../_sources/cookbook/inmemory_hdf5_files.rst.txt" rel="nofollow"> View page source</a>
       </li>
diff --git a/cookbook/no_root_install.html b/cookbook/no_root_install.html
index b9a0d15..013da72 100644
--- a/cookbook/no_root_install.html
+++ b/cookbook/no_root_install.html
@@ -1,10 +1,10 @@
 <!DOCTYPE html>
 <html class="writer-html5" lang="en" >
 <head>
-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Installing PyTables when you’re not root &mdash; PyTables 3.9.0 documentation</title>
+  <title>Installing PyTables when you’re not root &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../_static/graphviz.css" type="text/css" />
@@ -17,6 +17,7 @@
         <script src="../_static/underscore.js"></script>
         <script src="../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../_static/doctools.js"></script>
+        <script src="../_static/sphinx_highlight.js"></script>
     <script src="../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../genindex.html" />
     <link rel="search" title="Search" href="../search.html" />
@@ -41,15 +42,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../index.html">
-            <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../index.html">
+            
+              <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -102,9 +107,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="index.html">PyTables Cookbook</a> &raquo;</li>
-      <li>Installing PyTables when you’re not root</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="index.html">PyTables Cookbook</a></li>
+      <li class="breadcrumb-item active">Installing PyTables when you’re not root</li>
       <li class="wy-breadcrumbs-aside">
             <a href="../_sources/cookbook/no_root_install.rst.txt" rel="nofollow"> View page source</a>
       </li>
diff --git a/cookbook/py2exe_howto.html b/cookbook/py2exe_howto.html
index 5b2167e..d6c8ebf 100644
--- a/cookbook/py2exe_howto.html
+++ b/cookbook/py2exe_howto.html
@@ -1,10 +1,10 @@
 <!DOCTYPE html>
 <html class="writer-html5" lang="en" >
 <head>
-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>How to integrate PyTables in your application by using py2exe &mdash; PyTables 3.9.0 documentation</title>
+  <title>How to integrate PyTables in your application by using py2exe &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../_static/graphviz.css" type="text/css" />
@@ -17,6 +17,7 @@
         <script src="../_static/underscore.js"></script>
         <script src="../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../_static/doctools.js"></script>
+        <script src="../_static/sphinx_highlight.js"></script>
     <script src="../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../genindex.html" />
     <link rel="search" title="Search" href="../search.html" />
@@ -41,15 +42,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../index.html">
-            <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../index.html">
+            
+              <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
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-      <li><a href="../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="index.html">PyTables Cookbook</a> &raquo;</li>
-      <li>How to integrate PyTables in your application by using py2exe</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="index.html">PyTables Cookbook</a></li>
+      <li class="breadcrumb-item active">How to integrate PyTables in your application by using py2exe</li>
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index 93029d7..68f9fcf 100644
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   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>SimpleTable: simple wrapper around the Table object &mdash; PyTables 3.9.0 documentation</title>
+  <title>SimpleTable: simple wrapper around the Table object &mdash; PyTables 3.9.1 documentation</title>
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+        <script src="../_static/sphinx_highlight.js"></script>
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+
+          
+          
+          <a href="../index.html">
+            
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 <div role="search">
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+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
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-          <li><a href="index.html">PyTables Cookbook</a> &raquo;</li>
-      <li>SimpleTable: simple wrapper around the Table object</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="index.html">PyTables Cookbook</a></li>
+      <li class="breadcrumb-item active">SimpleTable: simple wrapper around the Table object</li>
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index 9b57a78..eea9bd9 100644
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-  <title>Tailoring atexit hooks &mdash; PyTables 3.9.0 documentation</title>
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     <script src="../_static/js/theme.js"></script>
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     <link rel="search" title="Search" href="../search.html" />
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+
+          
+          
+          <a href="../index.html">
+            
+              <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
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+                3.9.1
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 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
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-      <li><a href="../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="index.html">PyTables Cookbook</a> &raquo;</li>
-      <li>Tailoring <cite>atexit</cite> hooks</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="index.html">PyTables Cookbook</a></li>
+      <li class="breadcrumb-item active">Tailoring <cite>atexit</cite> hooks</li>
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index fdc76c0..9925781 100644
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-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
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-  <title>Threading &mdash; PyTables 3.9.0 documentation</title>
+  <title>Threading &mdash; PyTables 3.9.1 documentation</title>
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+        <script src="../_static/sphinx_highlight.js"></script>
     <script src="../_static/js/theme.js"></script>
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+
+          
+          
+          <a href="../index.html">
+            
+              <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
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+                3.9.1
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 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
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-          <li><a href="index.html">PyTables Cookbook</a> &raquo;</li>
-      <li>Threading</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="index.html">PyTables Cookbook</a></li>
+      <li class="breadcrumb-item active">Threading</li>
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diff --git a/dev_team.html b/dev_team.html
index 64d1701..500c80f 100644
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-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>PyTables Governance Team &mdash; PyTables 3.9.0 documentation</title>
+  <title>PyTables Governance Team &mdash; PyTables 3.9.1 documentation</title>
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+        <script src="_static/sphinx_highlight.js"></script>
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+
+          
+          
+          <a href="index.html">
+            
+              <img src="_static/logo-pytables-small.png" class="logo" alt="Logo"/>
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               <div class="version">
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+                3.9.1
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 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
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-      <li><a href="index.html" class="icon icon-home"></a> &raquo;</li>
-      <li>PyTables Governance Team</li>
+      <li><a href="index.html" class="icon icon-home" aria-label="Home"></a></li>
+      <li class="breadcrumb-item active">PyTables Governance Team</li>
       <li class="wy-breadcrumbs-aside">
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diff --git a/development.html b/development.html
index 22bf680..7147edc 100644
--- a/development.html
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-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
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-  <title>PyTables Development &mdash; PyTables 3.9.0 documentation</title>
+  <title>PyTables Development &mdash; PyTables 3.9.1 documentation</title>
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+        <script src="_static/sphinx_highlight.js"></script>
     <script src="_static/js/theme.js"></script>
     <link rel="index" title="Index" href="genindex.html" />
     <link rel="search" title="Search" href="search.html" />
@@ -41,15 +42,19 @@
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-            <a href="index.html">
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+
+          
+          
+          <a href="index.html">
+            
+              <img src="_static/logo-pytables-small.png" class="logo" alt="Logo"/>
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+                3.9.1
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 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
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-      <li><a href="index.html" class="icon icon-home"></a> &raquo;</li>
-      <li>PyTables Development</li>
+      <li><a href="index.html" class="icon icon-home" aria-label="Home"></a></li>
+      <li class="breadcrumb-item active">PyTables Development</li>
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diff --git a/downloads.html b/downloads.html
index 8b2563b..248f70e 100644
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-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
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-  <title>Downloads &mdash; PyTables 3.9.0 documentation</title>
+  <title>Downloads &mdash; PyTables 3.9.1 documentation</title>
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+        <script src="_static/sphinx_highlight.js"></script>
     <script src="_static/js/theme.js"></script>
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     <link rel="search" title="Search" href="search.html" />
@@ -41,15 +42,19 @@
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+
+          
+          
+          <a href="index.html">
+            
+              <img src="_static/logo-pytables-small.png" class="logo" alt="Logo"/>
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+                3.9.1
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 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
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+      <li><a href="index.html" class="icon icon-home" aria-label="Home"></a></li>
+      <li class="breadcrumb-item active">Downloads</li>
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diff --git a/genindex.html b/genindex.html
index 578cfdd..afa4c64 100644
--- a/genindex.html
+++ b/genindex.html
@@ -3,7 +3,7 @@
 <head>
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-  <title>Index &mdash; PyTables 3.9.0 documentation</title>
+  <title>Index &mdash; PyTables 3.9.1 documentation</title>
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+        <script src="_static/sphinx_highlight.js"></script>
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+
+          
+          
+          <a href="index.html">
+            
+              <img src="_static/logo-pytables-small.png" class="logo" alt="Logo"/>
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+                3.9.1
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 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
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-      <li><a href="index.html" class="icon icon-home"></a> &raquo;</li>
-      <li>Index</li>
+      <li><a href="index.html" class="icon icon-home" aria-label="Home"></a></li>
+      <li class="breadcrumb-item active">Index</li>
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diff --git a/index.html b/index.html
index b4820f2..00d5846 100644
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 <html class="writer-html5" lang="en" >
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-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Welcome to PyTables’ documentation! &mdash; PyTables 3.9.0 documentation</title>
+  <title>Welcome to PyTables’ documentation! &mdash; PyTables 3.9.1 documentation</title>
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+        <script src="_static/sphinx_highlight.js"></script>
     <script src="_static/js/theme.js"></script>
     <link rel="index" title="Index" href="genindex.html" />
     <link rel="search" title="Search" href="search.html" />
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+
+          
+          
+          <a href="#">
+            
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+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../release_notes.html">PyTables Release Notes</a></li>
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-          <li><a href="../release_notes.html">PyTables Release Notes</a> &raquo;</li>
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+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../release_notes.html">PyTables Release Notes</a></li>
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+          
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-          <li><a href="../release_notes.html">PyTables Release Notes</a> &raquo;</li>
-      <li>What’s new in PyTables 1.1</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../release_notes.html">PyTables Release Notes</a></li>
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+          
+          
+          <a href="../index.html">
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-          <li><a href="../release_notes.html">PyTables Release Notes</a> &raquo;</li>
-      <li>What’s new in PyTables 1.2.1</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../release_notes.html">PyTables Release Notes</a></li>
+      <li class="breadcrumb-item active">What’s new in PyTables 1.2.1</li>
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+          
+          
+          <a href="../index.html">
+            
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+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
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-          <li><a href="../release_notes.html">PyTables Release Notes</a> &raquo;</li>
-      <li>What’s new in PyTables 1.2.2</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../release_notes.html">PyTables Release Notes</a></li>
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index 4444fe1..3e2830a 100644
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-  <title>What’s new in PyTables 1.2.3 &mdash; PyTables 3.9.0 documentation</title>
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+          
+          
+          <a href="../index.html">
+            
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-          <li><a href="../release_notes.html">PyTables Release Notes</a> &raquo;</li>
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+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../release_notes.html">PyTables Release Notes</a></li>
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-          <li><a href="../release_notes.html">PyTables Release Notes</a> &raquo;</li>
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-          <li><a href="../release_notes.html">PyTables Release Notes</a> &raquo;</li>
-      <li>What’s new in PyTables 1.3</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../release_notes.html">PyTables Release Notes</a></li>
+      <li class="breadcrumb-item active">What’s new in PyTables 1.3</li>
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-          <li><a href="../release_notes.html">PyTables Release Notes</a> &raquo;</li>
-      <li>What’s new in PyTables 1.4</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../release_notes.html">PyTables Release Notes</a></li>
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+          
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+          <li class="breadcrumb-item"><a href="../release_notes.html">PyTables Release Notes</a></li>
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+          
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-      <li>Release notes for PyTables 2.2 series</li>
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+          <li class="breadcrumb-item"><a href="../release_notes.html">PyTables Release Notes</a></li>
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+          
+          
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-          <li><a href="../release_notes.html">PyTables Release Notes</a> &raquo;</li>
-      <li>Release notes for PyTables 2.2 series</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../release_notes.html">PyTables Release Notes</a></li>
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index b870c19..51bf087 100644
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+          
+          
+          <a href="../index.html">
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+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
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-          <li><a href="../release_notes.html">PyTables Release Notes</a> &raquo;</li>
-      <li>Release notes for PyTables 2.3 series</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../release_notes.html">PyTables Release Notes</a></li>
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diff --git a/release-notes/RELEASE_NOTES_v2.4.x.html b/release-notes/RELEASE_NOTES_v2.4.x.html
index 3a47ad6..78c40bc 100644
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+          
+          
+          <a href="../index.html">
+            
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-          <li><a href="../release_notes.html">PyTables Release Notes</a> &raquo;</li>
-      <li>Release notes for PyTables 2.4 series</li>
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+          <li class="breadcrumb-item"><a href="../release_notes.html">PyTables Release Notes</a></li>
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-          <li><a href="../release_notes.html">PyTables Release Notes</a> &raquo;</li>
-      <li>Release notes for PyTables 3.0 series</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../release_notes.html">PyTables Release Notes</a></li>
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-      <li>Changes from 3.1.0 to 3.1.1</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../release_notes.html">PyTables Release Notes</a></li>
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+          
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-          <li><a href="../release_notes.html">PyTables Release Notes</a> &raquo;</li>
-      <li>Release notes for PyTables 3.2 series</li>
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+          <li class="breadcrumb-item"><a href="../release_notes.html">PyTables Release Notes</a></li>
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diff --git a/release-notes/RELEASE_NOTES_v3.3.x.html b/release-notes/RELEASE_NOTES_v3.3.x.html
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+          
+          
+          <a href="../index.html">
+            
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+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
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-          <li><a href="../release_notes.html">PyTables Release Notes</a> &raquo;</li>
-      <li>Release notes for PyTables 3.3 series</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../release_notes.html">PyTables Release Notes</a></li>
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index b505d97..15cffcb 100644
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+
+          
+          
+          <a href="../index.html">
+            
+              <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
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-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
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@@ -129,9 +134,9 @@
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-      <li><a href="../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../release_notes.html">PyTables Release Notes</a> &raquo;</li>
-      <li>Release notes for PyTables 3.4 series</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../release_notes.html">PyTables Release Notes</a></li>
+      <li class="breadcrumb-item active">Release notes for PyTables 3.4 series</li>
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diff --git a/release-notes/RELEASE_NOTES_v3.5.x.html b/release-notes/RELEASE_NOTES_v3.5.x.html
index 5b31b53..212effb 100644
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+          
+          
+          <a href="../index.html">
+            
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-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
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-      <li><a href="../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../release_notes.html">PyTables Release Notes</a> &raquo;</li>
-      <li>Release notes for PyTables 3.5 series</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../release_notes.html">PyTables Release Notes</a></li>
+      <li class="breadcrumb-item active">Release notes for PyTables 3.5 series</li>
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diff --git a/release-notes/RELEASE_NOTES_v3.6.x.html b/release-notes/RELEASE_NOTES_v3.6.x.html
index e324a14..ce23f4d 100644
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-  <title>Release notes for PyTables 3.6 series &mdash; PyTables 3.9.0 documentation</title>
+  <title>Release notes for PyTables 3.6 series &mdash; PyTables 3.9.1 documentation</title>
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+
+          
+          
+          <a href="../index.html">
+            
+              <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
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+                3.9.1
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 <div role="search">
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-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
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-      <li><a href="../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../release_notes.html">PyTables Release Notes</a> &raquo;</li>
-      <li>Release notes for PyTables 3.6 series</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../release_notes.html">PyTables Release Notes</a></li>
+      <li class="breadcrumb-item active">Release notes for PyTables 3.6 series</li>
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diff --git a/release-notes/RELEASE_NOTES_v3.7.x.html b/release-notes/RELEASE_NOTES_v3.7.x.html
index a87d0a3..fcc3967 100644
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+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
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-  <title>Release notes for PyTables 3.7 series &mdash; PyTables 3.9.0 documentation</title>
+  <title>Release notes for PyTables 3.7 series &mdash; PyTables 3.9.1 documentation</title>
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+
+          
+          
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+                3.9.1
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+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
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-      <li><a href="../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../release_notes.html">PyTables Release Notes</a> &raquo;</li>
-      <li>Release notes for PyTables 3.7 series</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../release_notes.html">PyTables Release Notes</a></li>
+      <li class="breadcrumb-item active">Release notes for PyTables 3.7 series</li>
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diff --git a/release-notes/RELEASE_NOTES_v3.8.x.html b/release-notes/RELEASE_NOTES_v3.8.x.html
index e98c05c..4603c59 100644
--- a/release-notes/RELEASE_NOTES_v3.8.x.html
+++ b/release-notes/RELEASE_NOTES_v3.8.x.html
@@ -1,10 +1,10 @@
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-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
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-  <title>Release notes for PyTables 3.8 series &mdash; PyTables 3.9.0 documentation</title>
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+          
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-          <li><a href="../release_notes.html">PyTables Release Notes</a> &raquo;</li>
-      <li>Release notes for PyTables 3.8 series</li>
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+          <li class="breadcrumb-item"><a href="../release_notes.html">PyTables Release Notes</a></li>
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index 853c8f7..fda6364 100644
--- a/release-notes/RELEASE_NOTES_v3.9.x.html
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@@ -1,10 +1,10 @@
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-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
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   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Release notes for PyTables 3.9 series &mdash; PyTables 3.9.0 documentation</title>
+  <title>Release notes for PyTables 3.9 series &mdash; PyTables 3.9.1 documentation</title>
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+
+          
+          
+          <a href="../index.html">
+            
+              <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
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@@ -66,6 +71,7 @@
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 <li class="toctree-l3 current"><a class="current reference internal" href="#">Release notes for PyTables 3.9 series</a><ul>
+<li class="toctree-l4"><a class="reference internal" href="#changes-from-3-9-0-to-3-9-1">Changes from 3.9.0 to 3.9.1</a></li>
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-          <li><a href="../release_notes.html">PyTables Release Notes</a> &raquo;</li>
-      <li>Release notes for PyTables 3.9 series</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../release_notes.html">PyTables Release Notes</a></li>
+      <li class="breadcrumb-item active">Release notes for PyTables 3.9 series</li>
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@@ -147,6 +153,12 @@ <h1>Release notes for PyTables 3.9 series<a class="headerlink" href="#release-no
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 </dd>
 </dl>
+<section id="changes-from-3-9-0-to-3-9-1">
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+<ul class="simple">
+<li><p>Minimum supported version for Python is 3.9 (see #1062).</p></li>
+</ul>
+</section>
 <section id="changes-from-3-8-0-to-3-9-0">
 <h2>Changes from 3.8.0 to 3.9.0<a class="headerlink" href="#changes-from-3-8-0-to-3-9-0" title="Permalink to this heading">¶</a></h2>
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+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
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-      <li><a href="index.html" class="icon icon-home"></a> &raquo;</li>
-      <li>Search</li>
+      <li><a href="index.html" class="icon icon-home" aria-label="Home"></a></li>
+      <li class="breadcrumb-item active">Search</li>
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61, 63, 64, 65, 67, 68, 69, 71, 73, 74, 75, 77], "_v_flavor": 1, "protect": [1, 4, 60, 67], "against": [1, 4, 6, 22, 35, 36, 39, 40, 41, 43, 47, 73], "like": [1, 4, 8, 11, 14, 20, 21, 30, 31, 32, 35, 36, 39, 40, 43, 46, 47, 50, 55, 56, 57, 58, 60, 61, 63, 64, 65, 67, 68, 69, 70, 71, 73, 74, 75, 77], "complet": [1, 4, 11, 20, 21, 35, 36, 42, 43, 44, 56, 57, 60, 61, 62, 65, 66, 67, 68, 70, 71, 73, 77], "freedom": 1, "get": [1, 3, 6, 10, 11, 13, 20, 21, 22, 23, 26, 34, 35, 36, 43, 46, 47, 48, 57, 58, 60, 61, 63, 65, 67, 68, 69, 70, 71, 72, 74, 77], "rid": [1, 46, 48, 73, 74, 77], "proprietari": 1, "look": [1, 2, 4, 8, 13, 15, 61, 72, 73, 77], "hdf5": [1, 3, 4, 5, 9, 11, 15, 16, 20, 21, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 47, 48, 49, 50, 51, 52, 54, 56, 57, 58, 60, 61, 62, 63, 65, 66, 67, 68, 69, 70, 71, 72, 73, 75, 77], "nativ": [1, 2, 20, 35, 36, 37, 38, 39, 40, 43, 45, 46, 48, 54, 57, 58, 60, 63, 65, 69, 71, 75], "fly": [1, 58, 73], "repres": [1, 4, 21, 22, 35, 36, 43, 56, 57, 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47, 49, 54, 60, 61, 68, 69, 73], "less": [1, 15, 16, 21, 41, 44, 54, 55, 56, 58, 66, 71, 73], "renam": [1, 2, 4, 23, 34, 35, 36, 37, 38, 39, 40, 43, 48, 49, 63, 65, 67, 68, 69, 70, 71, 72, 75], "nra": [1, 41, 43, 75], "nestedrecord": 1, "implement": [1, 2, 3, 4, 11, 20, 21, 35, 36, 37, 38, 39, 40, 43, 44, 45, 47, 48, 51, 54, 61, 62, 64, 65, 66, 69, 71, 74, 77], "nestedrecarrai": 1, "complib": [1, 9, 20, 35, 36, 57, 65, 67, 69, 73, 77], "none": [1, 3, 9, 20, 22, 23, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 39, 40, 43, 55, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 74, 75, 77], "complevel": [1, 9, 20, 35, 36, 57, 65, 67, 69, 73, 75, 77], "disabl": [1, 6, 22, 37, 38, 39, 40, 42, 44, 47, 60, 65, 67, 71, 72, 73, 74, 75, 77], "relev": [1, 60], "irrelev": [1, 57, 67, 75, 77], "colstyp": 1, "coltyp": [1, 71], "coldtyp": [1, 71, 75], "coldescr": [1, 35, 36, 71, 75], "dictionari": [1, 4, 26, 35, 36, 48, 63, 65, 68, 71, 73, 74, 75], "colshap": 1, "disappear": [1, 37, 38, 75], "dict": [1, 9, 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"numeric-numarray-netcdf3-hdf5-1-6-no-more"]], "Unicode all the strings!": [[2, "unicode-all-the-strings"]], "Major API Changes": [[2, "major-api-changes"]], "PEP 8 Compliance": [[2, "pep-8-compliance"]], "Consistent create_xxx() Signatures": [[2, "consistent-create-xxx-signatures"]], "API Name Changes": [[2, "api-name-changes"]], "Using your own custom data types": [[3, "using-your-own-custom-data-types"]], "Hints for SQL users": [[4, "hints-for-sql-users"]], "Creating a new database": [[4, "creating-a-new-database"]], "A note on concurrency under PyTables": [[4, "a-note-on-concurrency-under-pytables"]], "Creating a table": [[4, "creating-a-table"]], "Table descriptions": [[4, "table-descriptions"]], "Column type declarations": [[4, "column-type-declarations"]], "Using a description": [[4, "using-a-description"]], "Creating an index": [[4, "creating-an-index"]], "Altering a table": [[4, "altering-a-table"]], "Dropping a table": [[4, "dropping-a-table"]], "Inserting data": [[4, "inserting-data"]], "A note on transactions": [[4, "a-note-on-transactions"]], "Updating data": [[4, "updating-data"]], "Deleting data": [[4, "deleting-data"]], "Reading data": [[4, "reading-data"]], "Iterating over rows": [[4, "iterating-over-rows"]], "Reading rows at once": [[4, "reading-rows-at-once"]], "Selecting data": [[4, "selecting-data"]], "Iterating over selected rows": [[4, "iterating-over-selected-rows"]], "Reading selected rows at once": [[4, "reading-selected-rows-at-once"]], "Getting the coordinates of selected rows": [[4, "getting-the-coordinates-of-selected-rows"]], "A note on table joins": [[4, "a-note-on-table-joins"]], "Summary of row selection methods": [[4, "summary-of-row-selection-methods"]], "Sorting the results of a selection": [[4, "sorting-the-results-of-a-selection"]], "Grouping the results of a selection": [[4, "grouping-the-results-of-a-selection"]], "PyTables Cookbook": [[5, "pytables-cookbook"]], "Contents": [[5, "contents"], [15, "contents"], [59, "contents"]], "In-memory HDF5 files": [[6, "in-memory-hdf5-files"]], "Open an existing file in memory": [[6, "open-an-existing-file-in-memory"]], "Creating a new file in memory": [[6, "creating-a-new-file-in-memory"]], "Backing store": [[6, "backing-store"]], "Memory images of HDF5 files": [[6, "memory-images-of-hdf5-files"]], "Installing PyTables when you\u2019re not root": [[7, "installing-pytables-when-you-re-not-root"]], "Installing HDF5": [[7, "installing-hdf5"]], "Installing NumPy": [[7, "installing-numpy"]], "Python wrapper script": [[7, "python-wrapper-script"]], "Installing PyTables": [[7, "installing-pytables"]], "Running Python with PyTables support": [[7, "running-python-with-pytables-support"]], "Concluding remarks": [[7, "concluding-remarks"]], "How to integrate PyTables in your application by using py2exe": [[8, "how-to-integrate-pytables-in-your-application-by-using-py2exe"]], "SimpleTable: simple wrapper around the Table object": [[9, "simpletable-simple-wrapper-around-the-table-object"]], "Tailoring atexit hooks": [[10, "tailoring-atexit-hooks"]], "Threading": [[11, "threading"]], "Background": [[11, "background"]], "A common schema for concurrency": [[11, "a-common-schema-for-concurrency"]], "Very simple solution": [[11, "very-simple-solution"]], "Monkey-patching PyTables": [[11, "monkey-patching-pytables"]], "PyTables Governance Team": [[12, "pytables-governance-team"]], "PyTables Development": [[13, "pytables-development"]], "Downloads": [[14, "downloads"]], "Stable Versions": [[14, "stable-versions"]], "Bleeding Edge Versions": [[14, "bleeding-edge-versions"]], "Welcome to PyTables\u2019 documentation!": [[15, "welcome-to-pytables-documentation"]], "Helpful Links": [[15, "helpful-links"]], "Other Material": [[16, "other-material"]], "Videos": [[16, "videos"]], "Presentations": [[16, "presentations"]], "Reports": [[16, "reports"]], "Other sources for examples": [[16, "other-sources-for-examples"]], "Project pointers": [[17, "project-pointers"]], "PyTables 0.7.1 is out!": [[18, "pytables-0-7-1-is-out"]], "What\u2019s new in PyTables 0.7.2": [[19, "what-s-new-in-pytables-0-7-2"]], "What\u2019s new in PyTables 0.8": [[20, "what-s-new-in-pytables-0-8"]], "What\u2019s new in PyTables 0.9": [[21, "what-s-new-in-pytables-0-9"]], "New features:": [[21, "new-features"]], "Improvements:": [[21, "improvements"]], "Backward-incompatible API changes:": [[21, "backward-incompatible-api-changes"]], "Bug fixes:": [[21, "bug-fixes"]], "What\u2019s new in PyTables 0.9.1": [[22, "what-s-new-in-pytables-0-9-1"]], "What\u2019s new in PyTables 1.0": [[23, "what-s-new-in-pytables-1-0"]], "API additions": [[23, "api-additions"], [24, "api-additions"], [25, "api-additions"], [26, "api-additions"], [27, "api-additions"], [28, "api-additions"], [29, "api-additions"], [30, "api-additions"], [31, "api-additions"], [32, "api-additions"], [33, "api-additions"], [34, "api-additions"], [35, "api-additions"], [36, "api-additions"]], "Backward-incompatible changes": [[23, "backward-incompatible-changes"], [24, "backward-incompatible-changes"], [25, "backward-incompatible-changes"], [26, "backward-incompatible-changes"], [27, "backward-incompatible-changes"], [28, "backward-incompatible-changes"], [29, "backward-incompatible-changes"], [30, "backward-incompatible-changes"], [31, "backward-incompatible-changes"], [32, "backward-incompatible-changes"], [33, "backward-incompatible-changes"], [34, "backward-incompatible-changes"], [35, "backward-incompatible-changes"], [36, "backward-incompatible-changes"]], "API refinements": [[23, "api-refinements"], [24, "api-refinements"], [25, "api-refinements"], [26, "api-refinements"], [27, "api-refinements"], [28, "api-refinements"], [29, "api-refinements"], [30, "api-refinements"], [31, "api-refinements"], [32, "api-refinements"], [33, "api-refinements"], [34, "api-refinements"], [35, "api-refinements"], [36, "api-refinements"]], "Bug fixes (affecting API)": [[23, "bug-fixes-affecting-api"], [24, "bug-fixes-affecting-api"], [25, "bug-fixes-affecting-api"], [26, "bug-fixes-affecting-api"], [27, "bug-fixes-affecting-api"], [28, "bug-fixes-affecting-api"], [29, "bug-fixes-affecting-api"], [30, "bug-fixes-affecting-api"], [31, "bug-fixes-affecting-api"], [32, "bug-fixes-affecting-api"], [33, "bug-fixes-affecting-api"], [34, "bug-fixes-affecting-api"]], "What\u2019s new in PyTables 1.1": [[24, "what-s-new-in-pytables-1-1"]], "What\u2019s new in PyTables 1.1.1": [[25, "what-s-new-in-pytables-1-1-1"]], "What\u2019s new in PyTables 1.2": [[26, "what-s-new-in-pytables-1-2"]], "Deprecated features": [[26, "deprecated-features"], [27, "deprecated-features"], [28, "deprecated-features"], [29, "deprecated-features"], [30, "deprecated-features"], [31, "deprecated-features"], [32, "deprecated-features"], [33, "deprecated-features"], [34, "deprecated-features"], [35, "deprecated-features"], [36, "deprecated-features"]], "What\u2019s new in PyTables 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"changes-from-2-0-to-2-0-1"], [36, "changes-from-2-0-to-2-0-1"]], "Changes from 2.0rc2 to 2.0": [[35, "changes-from-2-0rc2-to-2-0"], [36, "changes-from-2-0rc2-to-2-0"]], "Changes from 2.0rc1 to 2.0rc2": [[35, "changes-from-2-0rc1-to-2-0rc2"], [36, "changes-from-2-0rc1-to-2-0rc2"]], "Changes from 2.0b2 to 2.0rc1": [[35, "changes-from-2-0b2-to-2-0rc1"], [36, "changes-from-2-0b2-to-2-0rc1"]], "Changes from 2.0b1 to 2.0b2": [[35, "changes-from-2-0b1-to-2-0b2"], [36, "changes-from-2-0b1-to-2-0b2"]], "Important changes from 1.4.x to 2.0": [[35, "important-changes-from-1-4-x-to-2-0"]], "Release notes for PyTables Pro 2.0 series": [[36, "release-notes-for-pytables-pro-2-0-series"]], "Changes from 2.0.2.1 to 2.0.3": [[36, "changes-from-2-0-2-1-to-2-0-3"]], "Changes from 2.0.2 to 2.0.2.1": [[36, "changes-from-2-0-2-to-2-0-2-1"]], "Changes from 1.4.x to 2.0b1": [[36, "changes-from-1-4-x-to-2-0b1"]], "Release notes for PyTables 2.1 series": [[37, "release-notes-for-pytables-2-1-series"], [38, "release-notes-for-pytables-2-1-series"]], "Changes from 2.1.1 to 2.1.2": [[37, "changes-from-2-1-1-to-2-1-2"], [38, "changes-from-2-1-1-to-2-1-2"]], "Bug fixes": [[37, "bug-fixes"], [37, "id1"], [38, "bug-fixes"], [38, "id1"]], "Changes from 2.1 to 2.1.1": [[37, "changes-from-2-1-to-2-1-1"], [38, "changes-from-2-1-to-2-1-1"]], "Release notes for PyTables 2.2 series": [[39, "release-notes-for-pytables-2-2-series"], [40, "release-notes-for-pytables-2-2-series"]], "Changes from 2.2.1rc1 to 2.2.1": [[39, "changes-from-2-2-1rc1-to-2-2-1"], [40, "changes-from-2-2-1rc1-to-2-2-1"]], "Changes from 2.2 to 2.2.1rc1": [[39, "changes-from-2-2-to-2-2-1rc1"], [40, "changes-from-2-2-to-2-2-1rc1"]], "Changes from 2.2rc2 to 2.2 (final)": [[39, "changes-from-2-2rc2-to-2-2-final"], [40, "changes-from-2-2rc2-to-2-2-final"]], "Changes from 2.2rc1 to 2.2rc2": [[39, "changes-from-2-2rc1-to-2-2rc2"], [40, "changes-from-2-2rc1-to-2-2rc2"]], "Changes from 2.2b3 to 2.2rc1": [[39, "changes-from-2-2b3-to-2-2rc1"], [40, "changes-from-2-2b3-to-2-2rc1"]], "API changes": [[39, "api-changes"], [39, "id1"], [39, "id4"], [40, "api-changes"], [40, "id1"], [40, "id4"], [43, "api-changes"]], "Changes from 2.2b2 to 2.2b3": [[39, "changes-from-2-2b2-to-2-2b3"], [40, "changes-from-2-2b2-to-2-2b3"]], "Changes from 2.2b1 to 2.2b2": [[39, "changes-from-2-2b1-to-2-2b2"], [40, "changes-from-2-2b1-to-2-2b2"]], "Enhancements": [[39, "enhancements"], [39, "id2"], [40, "enhancements"], [40, "id2"]], "Bugs fixed": [[39, "bugs-fixed"], [39, "id3"], [40, "bugs-fixed"], [40, "id3"], [42, "bugs-fixed"], [43, "bugs-fixed"], [44, "bugs-fixed"], [44, "id2"], [45, "bugs-fixed"], [45, "id5"], [46, "bugs-fixed"], [47, "bugs-fixed"], [47, "id2"], [47, "id4"], [47, "id5"], [47, "id7"]], "Changes from 2.1.1 to 2.2b1": [[39, "changes-from-2-1-1-to-2-2b1"], [40, "changes-from-2-1-1-to-2-2b1"]], "Backward incompatible changes": [[39, "backward-incompatible-changes"], [40, "backward-incompatible-changes"], [44, "backward-incompatible-changes"]], "Release notes for PyTables 2.3 series": [[41, "release-notes-for-pytables-2-3-series"]], "Changes from 2.3 to 2.3.1": [[41, "changes-from-2-3-to-2-3-1"]], "Changes from 2.2.1 to 2.3": [[41, "changes-from-2-2-1-to-2-3"]], "Features coming from (now liberated) PyTables Pro": [[41, "features-coming-from-now-liberated-pytables-pro"]], "Deprecations": [[41, "deprecations"], [42, "deprecations"], [43, "deprecations"], [44, "deprecations"]], "Release notes for PyTables 2.4 series": [[42, "release-notes-for-pytables-2-4-series"]], "Changes from 2.3.1 to 2.4": [[42, "changes-from-2-3-1-to-2-4"]], "New features": [[42, "new-features"], [43, "new-features"], [44, "new-features"], [52, "new-features"]], "Other improvements": [[42, "other-improvements"]], "Documentation improvements": [[42, "documentation-improvements"]], "Release notes for PyTables 3.0 series": [[43, "release-notes-for-pytables-3-0-series"]], "Changes from 2.4 to 3.0": [[43, "changes-from-2-4-to-3-0"]], "Improvements": [[43, "improvements"], [44, "improvements"], [44, "id1"], [45, "improvements"], [45, "id4"], [46, "improvements"], [47, "improvements"], [47, "id1"], [47, "id3"], [47, "id6"], [48, "improvements"], [49, "improvements"], [50, "improvements"], [51, "improvements"], [52, "improvements"]], "Other possibly incompatible changes": [[43, "other-possibly-incompatible-changes"]], "Changes from 3.1.0 to 3.1.1": [[44, "changes-from-3-1-0-to-3-1-1"]], "Changes from 3.0 to 3.1.0": [[44, "changes-from-3-0-to-3-1-0"]], "Release notes for PyTables 3.2 series": [[45, "release-notes-for-pytables-3-2-series"]], "Changes from 3.2.3 to 3.2.3.1": [[45, "changes-from-3-2-3-to-3-2-3-1"]], "Changes from 3.2.2 to 3.2.3": [[45, "changes-from-3-2-2-to-3-2-3"]], "Changes from 3.2.1.1 to 3.2.2": [[45, "changes-from-3-2-1-1-to-3-2-2"]], "Bug fixed": [[45, "bug-fixed"], [45, "id3"]], "Changes from 3.2.1 to 3.2.1.1": [[45, "changes-from-3-2-1-to-3-2-1-1"]], "Changes from 3.2.0 to 3.2.1": [[45, "changes-from-3-2-0-to-3-2-1"]], "Changes from 3.1.1 to 3.2.0": [[45, "changes-from-3-1-1-to-3-2-0"]], "Release notes for PyTables 3.3 series": [[46, "release-notes-for-pytables-3-3-series"]], "Changes from 3.2.3.1 to 3.3.0": [[46, "changes-from-3-2-3-1-to-3-3-0"]], "Release notes for PyTables 3.4 series": [[47, "release-notes-for-pytables-3-4-series"]], "Changes from 3.4.3 to 3.4.4": [[47, "changes-from-3-4-3-to-3-4-4"]], "Changes from 3.4.2 to 3.4.3": [[47, "changes-from-3-4-2-to-3-4-3"]], "Changes from 3.4.1 to 3.4.2": [[47, "changes-from-3-4-1-to-3-4-2"]], "Changes from 3.4.0 to 3.4.1": [[47, "changes-from-3-4-0-to-3-4-1"]], "Changes from 3.3.0 to 3.4.0": [[47, "changes-from-3-3-0-to-3-4-0"]], "Release notes for PyTables 3.5 series": [[48, "release-notes-for-pytables-3-5-series"]], "Changes from 3.5.1 to 3.5.2": [[48, "changes-from-3-5-1-to-3-5-2"]], "Changes from 3.5.0 to 3.5.1": [[48, "changes-from-3-5-0-to-3-5-1"]], "Changes from 3.4.4 to 3.5.0": [[48, "changes-from-3-4-4-to-3-5-0"]], "Release notes for PyTables 3.6 series": [[49, "release-notes-for-pytables-3-6-series"]], "Changes from 3.6.0 to 3.6.1": [[49, "changes-from-3-6-0-to-3-6-1"]], "Changes from 3.5.3 to 3.6.0": [[49, "changes-from-3-5-3-to-3-6-0"]], "Bugfixes": [[49, "bugfixes"], [50, "bugfixes"], [52, "bugfixes"]], "Release notes for PyTables 3.7 series": [[50, "release-notes-for-pytables-3-7-series"]], "Changes from 3.6.1 to 3.7.0": [[50, "changes-from-3-6-1-to-3-7-0"]], "Release notes for PyTables 3.8 series": [[51, "release-notes-for-pytables-3-8-series"]], "Changes from 3.7.0 to 3.8.0": [[51, "changes-from-3-7-0-to-3-8-0"]], "Release notes for PyTables 3.9 series": [[52, "release-notes-for-pytables-3-9-series"]], "Changes from 3.9.0 to 3.9.1": [[52, "changes-from-3-9-0-to-3-9-1"]], "Changes from 3.8.0 to 3.9.0": [[52, "changes-from-3-8-0-to-3-9-0"]], "Thanks": [[52, "thanks"]], "PyTables Release Notes": [[53, "pytables-release-notes"]], "Migration": [[53, "migration"]], "PyTables": [[53, "pytables"]], "PyTables Pro": [[53, "pytables-pro"]], "Release timeline": [[53, "release-timeline"]], "Bibliography": [[54, "bibliography"]], "Condition Syntax": [[55, "condition-syntax"]], "Supported data types in PyTables": [[56, "supported-data-types-in-pytables"]], "Data types supported for array elements and tables columns in\n         PyTables.": [[56, "id10"]], "PyTables File Format": [[57, "pytables-file-format"]], "Mandatory attributes for a File": [[57, "mandatory-attributes-for-a-file"]], "Mandatory attributes for a Group": [[57, "mandatory-attributes-for-a-group"]], "Optional attributes for a Group": [[57, "optional-attributes-for-a-group"]], "Mandatory attributes, storage layout and supported data types for Leaves": [[57, "mandatory-attributes-storage-layout-and-supported-data-types-for-leaves"]], "Table format": [[57, "table-format"]], "Mandatory attributes": [[57, "mandatory-attributes"], [57, "id1"], [57, "id4"], [57, "id7"], [57, 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"tables.parameters.DISABLE_EVERY_CYCLES"]], "driver (in module tables.parameters)": [[74, "tables.parameters.DRIVER"]], "driver_core_backing_store (in module tables.parameters)": [[74, "tables.parameters.DRIVER_CORE_BACKING_STORE"]], "driver_core_image (in module tables.parameters)": [[74, "tables.parameters.DRIVER_CORE_IMAGE"]], "driver_core_increment (in module tables.parameters)": [[74, "tables.parameters.DRIVER_CORE_INCREMENT"]], "driver_direct_alignment (in module tables.parameters)": [[74, "tables.parameters.DRIVER_DIRECT_ALIGNMENT"]], "driver_direct_block_size (in module tables.parameters)": [[74, "tables.parameters.DRIVER_DIRECT_BLOCK_SIZE"]], "driver_direct_cbuf_size (in module tables.parameters)": [[74, "tables.parameters.DRIVER_DIRECT_CBUF_SIZE"]], "driver_split_meta_ext (in module tables.parameters)": [[74, "tables.parameters.DRIVER_SPLIT_META_EXT"]], "driver_split_raw_ext (in module tables.parameters)": [[74, "tables.parameters.DRIVER_SPLIT_RAW_EXT"]], "enable_every_cycles (in module tables.parameters)": [[74, "tables.parameters.ENABLE_EVERY_CYCLES"]], "expected_rows_earray (in module tables.parameters)": [[74, "tables.parameters.EXPECTED_ROWS_EARRAY"]], "expected_rows_table (in module tables.parameters)": [[74, "tables.parameters.EXPECTED_ROWS_TABLE"]], "io_buffer_size (in module tables.parameters)": [[74, "tables.parameters.IO_BUFFER_SIZE"]], "iterseq_max_elements (in module tables.parameters)": [[74, "tables.parameters.ITERSEQ_MAX_ELEMENTS"]], "iterseq_max_size (in module tables.parameters)": [[74, "tables.parameters.ITERSEQ_MAX_SIZE"]], "iterseq_max_slots (in module tables.parameters)": [[74, "tables.parameters.ITERSEQ_MAX_SLOTS"]], "limbounds_max_size (in module tables.parameters)": [[74, "tables.parameters.LIMBOUNDS_MAX_SIZE"]], "limbounds_max_slots (in module tables.parameters)": [[74, "tables.parameters.LIMBOUNDS_MAX_SLOTS"]], "lowest_hit_ratio (in module tables.parameters)": [[74, "tables.parameters.LOWEST_HIT_RATIO"]], "max_blosc_threads (in module tables.parameters)": [[74, "tables.parameters.MAX_BLOSC_THREADS"]], "max_columns (in module tables.parameters)": [[74, "tables.parameters.MAX_COLUMNS"]], "max_group_width (in module tables.parameters)": [[74, "tables.parameters.MAX_GROUP_WIDTH"]], "max_node_attrs (in module tables.parameters)": [[74, "tables.parameters.MAX_NODE_ATTRS"]], "max_numexpr_threads (in module tables.parameters)": [[74, "tables.parameters.MAX_NUMEXPR_THREADS"]], "max_tree_depth (in module tables.parameters)": [[74, "tables.parameters.MAX_TREE_DEPTH"]], "max_undo_path_length (in module tables.parameters)": [[74, "tables.parameters.MAX_UNDO_PATH_LENGTH"]], "metadata_cache_size (in module tables.parameters)": [[74, "tables.parameters.METADATA_CACHE_SIZE"]], "node_cache_slots (in module tables.parameters)": [[74, "tables.parameters.NODE_CACHE_SLOTS"]], "pytables_sys_attrs (in module tables.parameters)": [[74, "tables.parameters.PYTABLES_SYS_ATTRS"]], "sortedlr_max_size (in module tables.parameters)": [[74, "tables.parameters.SORTEDLR_MAX_SIZE"]], "sortedlr_max_slots (in module tables.parameters)": [[74, "tables.parameters.SORTEDLR_MAX_SLOTS"]], "sorted_max_size (in module tables.parameters)": [[74, "tables.parameters.SORTED_MAX_SIZE"]], "table_max_size (in module tables.parameters)": [[74, "tables.parameters.TABLE_MAX_SIZE"]], "user_block_size (in module tables.parameters)": [[74, "tables.parameters.USER_BLOCK_SIZE"]]}})
\ No newline at end of file
diff --git a/usersguide/bibliography.html b/usersguide/bibliography.html
index bee5062..dc69f08 100644
--- a/usersguide/bibliography.html
+++ b/usersguide/bibliography.html
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 <html class="writer-html5" lang="en" >
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-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
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   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Bibliography &mdash; PyTables 3.9.0 documentation</title>
+  <title>Bibliography &mdash; PyTables 3.9.1 documentation</title>
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@@ -17,6 +17,7 @@
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     <script src="../_static/js/theme.js"></script>
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     <link rel="search" title="Search" href="../search.html" />
@@ -41,15 +42,19 @@
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         <div class="wy-side-nav-search" >
-            <a href="../index.html">
-            <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../index.html">
+            
+              <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
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               <div class="version">
-                3.9.0
+                3.9.1
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 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
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@@ -81,9 +86,9 @@
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-      <li><a href="../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="index.html">PyTables User’s Guide</a> &raquo;</li>
-      <li>Bibliography</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="index.html">PyTables User’s Guide</a></li>
+      <li class="breadcrumb-item active">Bibliography</li>
       <li class="wy-breadcrumbs-aside">
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diff --git a/usersguide/condition_syntax.html b/usersguide/condition_syntax.html
index 14cdc43..e1f27b0 100644
--- a/usersguide/condition_syntax.html
+++ b/usersguide/condition_syntax.html
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-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Condition Syntax &mdash; PyTables 3.9.0 documentation</title>
+  <title>Condition Syntax &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
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@@ -17,6 +17,7 @@
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         <script src="../_static/_sphinx_javascript_frameworks_compat.js"></script>
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+        <script src="../_static/sphinx_highlight.js"></script>
     <script src="../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../genindex.html" />
     <link rel="search" title="Search" href="../search.html" />
@@ -41,15 +42,19 @@
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       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../index.html">
-            <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../index.html">
+            
+              <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.0
+                3.9.1
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 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -81,9 +86,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="index.html">PyTables User’s Guide</a> &raquo;</li>
-      <li>Condition Syntax</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="index.html">PyTables User’s Guide</a></li>
+      <li class="breadcrumb-item active">Condition Syntax</li>
       <li class="wy-breadcrumbs-aside">
             <a href="../_sources/usersguide/condition_syntax.rst.txt" rel="nofollow"> View page source</a>
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diff --git a/usersguide/datatypes.html b/usersguide/datatypes.html
index 24cda98..135c0ce 100644
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+++ b/usersguide/datatypes.html
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 <html class="writer-html5" lang="en" >
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-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Supported data types in PyTables &mdash; PyTables 3.9.0 documentation</title>
+  <title>Supported data types in PyTables &mdash; PyTables 3.9.1 documentation</title>
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       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
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+        <script src="../_static/sphinx_highlight.js"></script>
     <script src="../_static/js/theme.js"></script>
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     <link rel="search" title="Search" href="../search.html" />
@@ -41,15 +42,19 @@
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       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../index.html">
-            <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../index.html">
+            
+              <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.0
+                3.9.1
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 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -81,9 +86,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="index.html">PyTables User’s Guide</a> &raquo;</li>
-      <li>Supported data types in PyTables</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="index.html">PyTables User’s Guide</a></li>
+      <li class="breadcrumb-item active">Supported data types in PyTables</li>
       <li class="wy-breadcrumbs-aside">
             <a href="../_sources/usersguide/datatypes.rst.txt" rel="nofollow"> View page source</a>
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diff --git a/usersguide/file_format.html b/usersguide/file_format.html
index 81fcad8..33cba17 100644
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 <html class="writer-html5" lang="en" >
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-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>PyTables File Format &mdash; PyTables 3.9.0 documentation</title>
+  <title>PyTables File Format &mdash; PyTables 3.9.1 documentation</title>
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+        <script src="../_static/sphinx_highlight.js"></script>
     <script src="../_static/js/theme.js"></script>
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     <link rel="search" title="Search" href="../search.html" />
@@ -41,15 +42,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../index.html">
-            <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../index.html">
+            
+              <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -81,9 +86,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="index.html">PyTables User’s Guide</a> &raquo;</li>
-      <li>PyTables File Format</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="index.html">PyTables User’s Guide</a></li>
+      <li class="breadcrumb-item active">PyTables File Format</li>
       <li class="wy-breadcrumbs-aside">
             <a href="../_sources/usersguide/file_format.rst.txt" rel="nofollow"> View page source</a>
       </li>
diff --git a/usersguide/filenode.html b/usersguide/filenode.html
index 4aa7c63..76df5cf 100644
--- a/usersguide/filenode.html
+++ b/usersguide/filenode.html
@@ -1,10 +1,10 @@
 <!DOCTYPE html>
 <html class="writer-html5" lang="en" >
 <head>
-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>filenode - simulating a filesystem with PyTables &mdash; PyTables 3.9.0 documentation</title>
+  <title>filenode - simulating a filesystem with PyTables &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../_static/graphviz.css" type="text/css" />
@@ -17,6 +17,7 @@
         <script src="../_static/underscore.js"></script>
         <script src="../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../_static/doctools.js"></script>
+        <script src="../_static/sphinx_highlight.js"></script>
     <script src="../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../genindex.html" />
     <link rel="search" title="Search" href="../search.html" />
@@ -41,15 +42,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../index.html">
-            <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../index.html">
+            
+              <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -81,9 +86,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="index.html">PyTables User’s Guide</a> &raquo;</li>
-      <li>filenode - simulating a filesystem with PyTables</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="index.html">PyTables User’s Guide</a></li>
+      <li class="breadcrumb-item active">filenode - simulating a filesystem with PyTables</li>
       <li class="wy-breadcrumbs-aside">
             <a href="../_sources/usersguide/filenode.rst.txt" rel="nofollow"> View page source</a>
       </li>
@@ -203,9 +208,9 @@ <h3>Using a file node<a class="headerlink" href="#using-a-file-node" title="Perm
 <span class="gp">&gt;&gt;&gt; </span><span class="nb">print</span><span class="p">(</span><span class="s2">&quot;And this is another one.&quot;</span><span class="p">,</span> <span class="n">file</span><span class="o">=</span><span class="n">fnode</span><span class="p">)</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="nb">print</span><span class="p">(</span><span class="n">file</span><span class="o">=</span><span class="n">fnode</span><span class="p">)</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="n">fnode</span><span class="o">.</span><span class="n">write</span><span class="p">(</span><span class="s2">&quot;Of course, file methods can also be used.&quot;</span><span class="p">)</span>
-<span class="go">&gt;&gt;&gt;</span>
+<span class="gp">&gt;&gt;&gt;</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="n">fnode</span><span class="o">.</span><span class="n">seek</span><span class="p">(</span><span class="mi">0</span><span class="p">)</span>  <span class="c1"># Go back to the beginning of file.</span>
-<span class="go">&gt;&gt;&gt;</span>
+<span class="gp">&gt;&gt;&gt;</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="k">for</span> <span class="n">line</span> <span class="ow">in</span> <span class="n">fnode</span><span class="p">:</span>
 <span class="gp">... </span>    <span class="nb">print</span><span class="p">(</span><span class="nb">repr</span><span class="p">(</span><span class="n">line</span><span class="p">))</span>
 <span class="go">&#39;This is a test text line.\\n&#39;</span>
@@ -298,23 +303,23 @@ <h3>Adding metadata to a file node<a class="headerlink" href="#adding-metadata-t
 </div>
 <p>You can check that these attributes get stored by running the ptdump command
 on the host PyTables file.</p>
-<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$ ptdump -a fnode.h5:/fnode_test
-/fnode_test <span class="o">(</span>EArray<span class="o">(</span><span class="m">113</span>,<span class="o">))</span> <span class="s1">&#39;&#39;</span>
-/fnode_test.attrs <span class="o">(</span>AttributeSet<span class="o">)</span>, <span class="m">14</span> attributes:
-<span class="o">[</span>CLASS :<span class="o">=</span> <span class="s1">&#39;EARRAY&#39;</span>,
-EXTDIM :<span class="o">=</span> <span class="m">0</span>,
-FLAVOR :<span class="o">=</span> <span class="s1">&#39;numpy&#39;</span>,
-NODE_TYPE :<span class="o">=</span> <span class="s1">&#39;file&#39;</span>,
-NODE_TYPE_VERSION :<span class="o">=</span> <span class="m">2</span>,
-TITLE :<span class="o">=</span> <span class="s1">&#39;&#39;</span>,
-VERSION :<span class="o">=</span> <span class="s1">&#39;1.2&#39;</span>,
-acl :<span class="o">=</span> <span class="o">{</span><span class="s1">&#39;ivan&#39;</span>: <span class="s1">&#39;rw&#39;</span>, <span class="s1">&#39;@users&#39;</span>: <span class="s1">&#39;r&#39;</span><span class="o">}</span>,
-author :<span class="o">=</span> <span class="s1">&#39;Ivan Vilata i Balaguer&#39;</span>,
-content_type :<span class="o">=</span> <span class="s1">&#39;text/plain; charset=us-ascii&#39;</span>,
-creation_date :<span class="o">=</span> <span class="s1">&#39;2004-10-20T13:25:25+0200&#39;</span>,
-keywords_ca :<span class="o">=</span> <span class="o">[</span><span class="s1">&#39;FileNode&#39;</span>, <span class="s1">&#39;prova&#39;</span>, <span class="s1">&#39;metadades&#39;</span><span class="o">]</span>,
-keywords_en :<span class="o">=</span> <span class="o">[</span><span class="s1">&#39;FileNode&#39;</span>, <span class="s1">&#39;test&#39;</span>, <span class="s1">&#39;metadata&#39;</span><span class="o">]</span>,
-owner :<span class="o">=</span> <span class="s1">&#39;ivan&#39;</span><span class="o">]</span>
+<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$<span class="w"> </span>ptdump<span class="w"> </span>-a<span class="w"> </span>fnode.h5:/fnode_test
+/fnode_test<span class="w"> </span><span class="o">(</span>EArray<span class="o">(</span><span class="m">113</span>,<span class="o">))</span><span class="w"> </span><span class="s1">&#39;&#39;</span>
+/fnode_test.attrs<span class="w"> </span><span class="o">(</span>AttributeSet<span class="o">)</span>,<span class="w"> </span><span class="m">14</span><span class="w"> </span>attributes:
+<span class="o">[</span>CLASS<span class="w"> </span>:<span class="o">=</span><span class="w"> </span><span class="s1">&#39;EARRAY&#39;</span>,
+EXTDIM<span class="w"> </span>:<span class="o">=</span><span class="w"> </span><span class="m">0</span>,
+FLAVOR<span class="w"> </span>:<span class="o">=</span><span class="w"> </span><span class="s1">&#39;numpy&#39;</span>,
+NODE_TYPE<span class="w"> </span>:<span class="o">=</span><span class="w"> </span><span class="s1">&#39;file&#39;</span>,
+NODE_TYPE_VERSION<span class="w"> </span>:<span class="o">=</span><span class="w"> </span><span class="m">2</span>,
+TITLE<span class="w"> </span>:<span class="o">=</span><span class="w"> </span><span class="s1">&#39;&#39;</span>,
+VERSION<span class="w"> </span>:<span class="o">=</span><span class="w"> </span><span class="s1">&#39;1.2&#39;</span>,
+acl<span class="w"> </span>:<span class="o">=</span><span class="w"> </span><span class="o">{</span><span class="s1">&#39;ivan&#39;</span>:<span class="w"> </span><span class="s1">&#39;rw&#39;</span>,<span class="w"> </span><span class="s1">&#39;@users&#39;</span>:<span class="w"> </span><span class="s1">&#39;r&#39;</span><span class="o">}</span>,
+author<span class="w"> </span>:<span class="o">=</span><span class="w"> </span><span class="s1">&#39;Ivan Vilata i Balaguer&#39;</span>,
+content_type<span class="w"> </span>:<span class="o">=</span><span class="w"> </span><span class="s1">&#39;text/plain; charset=us-ascii&#39;</span>,
+creation_date<span class="w"> </span>:<span class="o">=</span><span class="w"> </span><span class="s1">&#39;2004-10-20T13:25:25+0200&#39;</span>,
+keywords_ca<span class="w"> </span>:<span class="o">=</span><span class="w"> </span><span class="o">[</span><span class="s1">&#39;FileNode&#39;</span>,<span class="w"> </span><span class="s1">&#39;prova&#39;</span>,<span class="w"> </span><span class="s1">&#39;metadades&#39;</span><span class="o">]</span>,
+keywords_en<span class="w"> </span>:<span class="o">=</span><span class="w"> </span><span class="o">[</span><span class="s1">&#39;FileNode&#39;</span>,<span class="w"> </span><span class="s1">&#39;test&#39;</span>,<span class="w"> </span><span class="s1">&#39;metadata&#39;</span><span class="o">]</span>,
+owner<span class="w"> </span>:<span class="o">=</span><span class="w"> </span><span class="s1">&#39;ivan&#39;</span><span class="o">]</span>
 </pre></div>
 </div>
 <p>Note that filenode makes no assumptions about the meaning of your metadata,
diff --git a/usersguide/index.html b/usersguide/index.html
index bd8d06e..35515ba 100644
--- a/usersguide/index.html
+++ b/usersguide/index.html
@@ -1,10 +1,10 @@
 <!DOCTYPE html>
 <html class="writer-html5" lang="en" >
 <head>
-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>PyTables User’s Guide &mdash; PyTables 3.9.0 documentation</title>
+  <title>PyTables User’s Guide &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../_static/graphviz.css" type="text/css" />
@@ -17,6 +17,7 @@
         <script src="../_static/underscore.js"></script>
         <script src="../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../_static/doctools.js"></script>
+        <script src="../_static/sphinx_highlight.js"></script>
     <script src="../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../genindex.html" />
     <link rel="search" title="Search" href="../search.html" />
@@ -41,15 +42,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../index.html">
-            <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../index.html">
+            
+              <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -100,8 +105,8 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../index.html" class="icon icon-home"></a> &raquo;</li>
-      <li>PyTables User’s Guide</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+      <li class="breadcrumb-item active">PyTables User’s Guide</li>
       <li class="wy-breadcrumbs-aside">
             <a href="../_sources/usersguide/index.rst.txt" rel="nofollow"> View page source</a>
       </li>
diff --git a/usersguide/installation.html b/usersguide/installation.html
index 3de0559..faf3f08 100644
--- a/usersguide/installation.html
+++ b/usersguide/installation.html
@@ -1,10 +1,10 @@
 <!DOCTYPE html>
 <html class="writer-html5" lang="en" >
 <head>
-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Installation &mdash; PyTables 3.9.0 documentation</title>
+  <title>Installation &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../_static/graphviz.css" type="text/css" />
@@ -17,6 +17,7 @@
         <script src="../_static/underscore.js"></script>
         <script src="../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../_static/doctools.js"></script>
+        <script src="../_static/sphinx_highlight.js"></script>
     <script src="../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../genindex.html" />
     <link rel="search" title="Search" href="../search.html" />
@@ -41,15 +42,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../index.html">
-            <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../index.html">
+            
+              <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -81,9 +86,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="index.html">PyTables User’s Guide</a> &raquo;</li>
-      <li>Installation</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="index.html">PyTables User’s Guide</a></li>
+      <li class="breadcrumb-item active">Installation</li>
       <li class="wy-breadcrumbs-aside">
             <a href="../_sources/usersguide/installation.rst.txt" rel="nofollow"> View page source</a>
       </li>
@@ -128,7 +133,7 @@ <h3>Prerequisites<a class="headerlink" href="#prerequisites" title="Permalink to
 <p>First, make sure that you have the following dependencies installed.
 If you don’t, fetch and install them before proceeding.</p>
 <ul class="simple">
-<li><p><a class="reference external" href="http://www.python.org">Python</a> &gt;= 3.9 (Python 3.8 may work, but you may need to build/test yourself)</p></li>
+<li><p><a class="reference external" href="http://www.python.org">Python</a> &gt;= 3.9</p></li>
 <li><p><a class="reference external" href="http://www.hdfgroup.org/HDF5">HDF5</a> &gt;= 1.10.5 (although 1.14.0 or later is strongly recommended)</p></li>
 <li><p><a class="reference external" href="http://www.cython.org">Cython</a> &gt;= 0.29.32</p></li>
 <li><p><a class="reference external" href="http://www.numpy.org">NumPy</a> &gt;= 1.19.0</p></li>
diff --git a/usersguide/introduction.html b/usersguide/introduction.html
index d5f088e..b887cec 100644
--- a/usersguide/introduction.html
+++ b/usersguide/introduction.html
@@ -1,10 +1,10 @@
 <!DOCTYPE html>
 <html class="writer-html5" lang="en" >
 <head>
-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Introduction &mdash; PyTables 3.9.0 documentation</title>
+  <title>Introduction &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../_static/graphviz.css" type="text/css" />
@@ -17,6 +17,7 @@
         <script src="../_static/underscore.js"></script>
         <script src="../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../_static/doctools.js"></script>
+        <script src="../_static/sphinx_highlight.js"></script>
     <script src="../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../genindex.html" />
     <link rel="search" title="Search" href="../search.html" />
@@ -41,15 +42,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../index.html">
-            <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../index.html">
+            
+              <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -81,9 +86,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="index.html">PyTables User’s Guide</a> &raquo;</li>
-      <li>Introduction</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="index.html">PyTables User’s Guide</a></li>
+      <li class="breadcrumb-item active">Introduction</li>
       <li class="wy-breadcrumbs-aside">
             <a href="../_sources/usersguide/introduction.rst.txt" rel="nofollow"> View page source</a>
       </li>
diff --git a/usersguide/libref.html b/usersguide/libref.html
index 621295e..6a05269 100644
--- a/usersguide/libref.html
+++ b/usersguide/libref.html
@@ -1,10 +1,10 @@
 <!DOCTYPE html>
 <html class="writer-html5" lang="en" >
 <head>
-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Library Reference &mdash; PyTables 3.9.0 documentation</title>
+  <title>Library Reference &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../_static/graphviz.css" type="text/css" />
@@ -17,6 +17,7 @@
         <script src="../_static/underscore.js"></script>
         <script src="../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../_static/doctools.js"></script>
+        <script src="../_static/sphinx_highlight.js"></script>
     <script src="../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../genindex.html" />
     <link rel="search" title="Search" href="../search.html" />
@@ -41,15 +42,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../index.html">
-            <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../index.html">
+            
+              <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -81,9 +86,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="index.html">PyTables User’s Guide</a> &raquo;</li>
-      <li>Library Reference</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="index.html">PyTables User’s Guide</a></li>
+      <li class="breadcrumb-item active">Library Reference</li>
       <li class="wy-breadcrumbs-aside">
             <a href="../_sources/usersguide/libref.rst.txt" rel="nofollow"> View page source</a>
       </li>
diff --git a/usersguide/libref/declarative_classes.html b/usersguide/libref/declarative_classes.html
index 237b7df..a781d19 100644
--- a/usersguide/libref/declarative_classes.html
+++ b/usersguide/libref/declarative_classes.html
@@ -1,10 +1,10 @@
 <!DOCTYPE html>
 <html class="writer-html5" lang="en" >
 <head>
-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Declarative classes &mdash; PyTables 3.9.0 documentation</title>
+  <title>Declarative classes &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/graphviz.css" type="text/css" />
@@ -17,6 +17,7 @@
         <script src="../../_static/underscore.js"></script>
         <script src="../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../_static/doctools.js"></script>
+        <script src="../../_static/sphinx_highlight.js"></script>
     <script src="../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../genindex.html" />
     <link rel="search" title="Search" href="../../search.html" />
@@ -41,15 +42,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../index.html">
-            <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../index.html">
+            
+              <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -81,10 +86,10 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../index.html">PyTables User’s Guide</a> &raquo;</li>
-          <li><a href="../libref.html">Library Reference</a> &raquo;</li>
-      <li>Declarative classes</li>
+      <li><a href="../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../index.html">PyTables User’s Guide</a></li>
+          <li class="breadcrumb-item"><a href="../libref.html">Library Reference</a></li>
+      <li class="breadcrumb-item active">Declarative classes</li>
       <li class="wy-breadcrumbs-aside">
             <a href="../../_sources/usersguide/libref/declarative_classes.rst.txt" rel="nofollow"> View page source</a>
       </li>
@@ -127,7 +132,7 @@ <h1>Declarative classes<a class="headerlink" href="#declarative-classes" title="
 <li><p><strong>shape</strong> (<em>tuple</em>) – Sets the shape of the atom. An integer shape of
 N is equivalent to the tuple (N,).</p></li>
 <li><p><strong>dflt</strong> – Sets the default value for the atom.</p></li>
-<li><p><strong>class.</strong> (<em>The following are the public methods and attributes of the Atom</em>) – </p></li>
+<li><p><strong>class.</strong> (<em>The following are the public methods and attributes</em><em> of </em><em>the Atom</em>) – </p></li>
 </ul>
 </dd>
 </dl>
@@ -1084,7 +1089,7 @@ <h2>Description helper functions<a class="headerlink" href="#description-helper-
 get an idea of where things went wrong, as shown in this example:</p>
 <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="kn">import</span> <span class="nn">os</span><span class="o">,</span> <span class="nn">tempfile</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="kn">import</span> <span class="nn">tables</span> <span class="k">as</span> <span class="nn">tb</span>
-<span class="go">&gt;&gt;&gt;</span>
+<span class="gp">&gt;&gt;&gt;</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="k">class</span> <span class="nc">MyClass</span><span class="p">:</span>
 <span class="gp">... </span>    <span class="n">foo</span> <span class="o">=</span> <span class="s1">&#39;bar&#39;</span>
 <span class="gp">...</span>
@@ -1095,7 +1100,7 @@ <h2>Description helper functions<a class="headerlink" href="#description-helper-
 <span class="gp">&gt;&gt;&gt; </span><span class="nb">print</span><span class="p">(</span><span class="n">h5f</span><span class="o">.</span><span class="n">root</span><span class="o">.</span><span class="n">_v_attrs</span><span class="o">.</span><span class="n">obj</span><span class="o">.</span><span class="n">foo</span><span class="p">)</span>  <span class="c1"># retrieve it</span>
 <span class="go">bar</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="n">h5f</span><span class="o">.</span><span class="n">close</span><span class="p">()</span>
-<span class="go">&gt;&gt;&gt;</span>
+<span class="gp">&gt;&gt;&gt;</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="k">del</span> <span class="n">MyClass</span><span class="p">,</span> <span class="n">myObject</span>  <span class="c1"># delete class of object and reopen file</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="n">h5f</span> <span class="o">=</span> <span class="n">tb</span><span class="o">.</span><span class="n">open_file</span><span class="p">(</span><span class="n">h5fname</span><span class="p">,</span> <span class="s1">&#39;r&#39;</span><span class="p">)</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="nb">print</span><span class="p">(</span><span class="nb">repr</span><span class="p">(</span><span class="n">h5f</span><span class="o">.</span><span class="n">root</span><span class="o">.</span><span class="n">_v_attrs</span><span class="o">.</span><span class="n">obj</span><span class="p">))</span>
diff --git a/usersguide/libref/expr_class.html b/usersguide/libref/expr_class.html
index fd276d0..666d60e 100644
--- a/usersguide/libref/expr_class.html
+++ b/usersguide/libref/expr_class.html
@@ -1,10 +1,10 @@
 <!DOCTYPE html>
 <html class="writer-html5" lang="en" >
 <head>
-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>General purpose expression evaluator class &mdash; PyTables 3.9.0 documentation</title>
+  <title>General purpose expression evaluator class &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/graphviz.css" type="text/css" />
@@ -17,6 +17,7 @@
         <script src="../../_static/underscore.js"></script>
         <script src="../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../_static/doctools.js"></script>
+        <script src="../../_static/sphinx_highlight.js"></script>
     <script src="../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../genindex.html" />
     <link rel="search" title="Search" href="../../search.html" />
@@ -41,15 +42,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../index.html">
-            <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../index.html">
+            
+              <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -81,10 +86,10 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../index.html">PyTables User’s Guide</a> &raquo;</li>
-          <li><a href="../libref.html">Library Reference</a> &raquo;</li>
-      <li>General purpose expression evaluator class</li>
+      <li><a href="../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../index.html">PyTables User’s Guide</a></li>
+          <li class="breadcrumb-item"><a href="../libref.html">Library Reference</a></li>
+      <li class="breadcrumb-item active">General purpose expression evaluator class</li>
       <li class="wy-breadcrumbs-aside">
             <a href="../../_sources/usersguide/libref/expr_class.rst.txt" rel="nofollow"> View page source</a>
       </li>
diff --git a/usersguide/libref/file_class.html b/usersguide/libref/file_class.html
index 3f7600e..e7dd64c 100644
--- a/usersguide/libref/file_class.html
+++ b/usersguide/libref/file_class.html
@@ -1,10 +1,10 @@
 <!DOCTYPE html>
 <html class="writer-html5" lang="en" >
 <head>
-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>File manipulation class &mdash; PyTables 3.9.0 documentation</title>
+  <title>File manipulation class &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/graphviz.css" type="text/css" />
@@ -17,6 +17,7 @@
         <script src="../../_static/underscore.js"></script>
         <script src="../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../_static/doctools.js"></script>
+        <script src="../../_static/sphinx_highlight.js"></script>
     <script src="../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../genindex.html" />
     <link rel="search" title="Search" href="../../search.html" />
@@ -41,15 +42,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../index.html">
-            <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../index.html">
+            
+              <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -81,10 +86,10 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../index.html">PyTables User’s Guide</a> &raquo;</li>
-          <li><a href="../libref.html">Library Reference</a> &raquo;</li>
-      <li>File manipulation class</li>
+      <li><a href="../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../index.html">PyTables User’s Guide</a></li>
+          <li class="breadcrumb-item"><a href="../libref.html">Library Reference</a></li>
+      <li class="breadcrumb-item active">File manipulation class</li>
       <li class="wy-breadcrumbs-aside">
             <a href="../../_sources/usersguide/libref/file_class.rst.txt" rel="nofollow"> View page source</a>
       </li>
@@ -478,7 +483,7 @@ <h3>File methods - hierarchy manipulation<a class="headerlink" href="#file-metho
 <p><span class="versionmodified added">New in version 3.0.</span></p>
 </div>
 </p></li>
-<li><p><strong>shape</strong> (<em>tuple of ints</em>) – <p>The shape of the stored array.</p>
+<li><p><strong>shape</strong> (<em>tuple</em><em> of </em><em>ints</em>) – <p>The shape of the stored array.</p>
 <div class="versionadded">
 <p><span class="versionmodified added">New in version 3.0.</span></p>
 </div>
@@ -862,7 +867,7 @@ <h3>File methods - hierarchy manipulation<a class="headerlink" href="#file-metho
 <p><span class="versionmodified added">New in version 3.0.</span></p>
 </div>
 </p></li>
-<li><p><strong>chunkshape</strong> (<em>int</em><em> or </em><em>tuple of int</em><em>, </em><em>optional</em>) – The shape of the data chunk to be read or written in a
+<li><p><strong>chunkshape</strong> (<em>int</em><em> or </em><em>tuple</em><em> of </em><em>int</em><em>, </em><em>optional</em>) – The shape of the data chunk to be read or written in a
 single HDF5 I/O operation. Filters are applied to those
 chunks of data. The dimensionality of chunkshape must be 1.
 If None, a sensible value is calculated (which is recommended).</p></li>
diff --git a/usersguide/libref/filenode_classes.html b/usersguide/libref/filenode_classes.html
index 6ee4d61..ceeafcd 100644
--- a/usersguide/libref/filenode_classes.html
+++ b/usersguide/libref/filenode_classes.html
@@ -1,10 +1,10 @@
 <!DOCTYPE html>
 <html class="writer-html5" lang="en" >
 <head>
-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Filenode Module &mdash; PyTables 3.9.0 documentation</title>
+  <title>Filenode Module &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/graphviz.css" type="text/css" />
@@ -17,6 +17,7 @@
         <script src="../../_static/underscore.js"></script>
         <script src="../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../_static/doctools.js"></script>
+        <script src="../../_static/sphinx_highlight.js"></script>
     <script src="../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../genindex.html" />
     <link rel="search" title="Search" href="../../search.html" />
@@ -41,15 +42,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../index.html">
-            <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../index.html">
+            
+              <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -81,10 +86,10 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../index.html">PyTables User’s Guide</a> &raquo;</li>
-          <li><a href="../libref.html">Library Reference</a> &raquo;</li>
-      <li>Filenode Module</li>
+      <li><a href="../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../index.html">PyTables User’s Guide</a></li>
+          <li class="breadcrumb-item"><a href="../libref.html">Library Reference</a></li>
+      <li class="breadcrumb-item active">Filenode Module</li>
       <li class="wy-breadcrumbs-aside">
             <a href="../../_sources/usersguide/libref/filenode_classes.rst.txt" rel="nofollow"> View page source</a>
       </li>
diff --git a/usersguide/libref/helper_classes.html b/usersguide/libref/helper_classes.html
index 7461b1f..6c4158e 100644
--- a/usersguide/libref/helper_classes.html
+++ b/usersguide/libref/helper_classes.html
@@ -1,10 +1,10 @@
 <!DOCTYPE html>
 <html class="writer-html5" lang="en" >
 <head>
-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Helper classes &mdash; PyTables 3.9.0 documentation</title>
+  <title>Helper classes &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/graphviz.css" type="text/css" />
@@ -17,6 +17,7 @@
         <script src="../../_static/underscore.js"></script>
         <script src="../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../_static/doctools.js"></script>
+        <script src="../../_static/sphinx_highlight.js"></script>
     <script src="../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../genindex.html" />
     <link rel="search" title="Search" href="../../search.html" />
@@ -41,15 +42,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../index.html">
-            <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../index.html">
+            
+              <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -81,10 +86,10 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../index.html">PyTables User’s Guide</a> &raquo;</li>
-          <li><a href="../libref.html">Library Reference</a> &raquo;</li>
-      <li>Helper classes</li>
+      <li><a href="../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../index.html">PyTables User’s Guide</a></li>
+          <li class="breadcrumb-item"><a href="../libref.html">Library Reference</a></li>
+      <li class="breadcrumb-item active">Helper classes</li>
       <li class="wy-breadcrumbs-aside">
             <a href="../../_sources/usersguide/libref/helper_classes.rst.txt" rel="nofollow"> View page source</a>
       </li>
@@ -530,7 +535,7 @@ <h3>Enum special methods<a class="headerlink" href="#enum-special-methods" title
 <span class="go">True</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="n">enum</span><span class="p">(</span><span class="mi">42</span><span class="p">)</span>
 <span class="gt">Traceback (most recent call last):</span>
-  <span class="c">...</span>
+<span class="w">  </span><span class="c">...</span>
 <span class="gr">ValueError</span>: <span class="n">no enumerated value with that concrete value: 42</span>
 </pre></div>
 </div>
@@ -556,11 +561,11 @@ <h3>Enum special methods<a class="headerlink" href="#enum-special-methods" title
 <span class="go">False</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="mi">0</span> <span class="ow">in</span> <span class="n">enum</span>
 <span class="gt">Traceback (most recent call last):</span>
-  <span class="c">...</span>
+<span class="w">  </span><span class="c">...</span>
 <span class="gr">TypeError</span>: <span class="n">name of enumerated value is not a string: 0</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="n">enum</span><span class="o">.</span><span class="n">T1</span> <span class="ow">in</span> <span class="n">enum</span>  <span class="c1"># Be careful with this!</span>
 <span class="gt">Traceback (most recent call last):</span>
-  <span class="c">...</span>
+<span class="w">  </span><span class="c">...</span>
 <span class="gr">TypeError</span>: <span class="n">name of enumerated value is not a string: 2</span>
 </pre></div>
 </div>
@@ -623,7 +628,7 @@ <h3>Enum special methods<a class="headerlink" href="#enum-special-methods" title
 <span class="go">2</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="n">enum</span><span class="o">.</span><span class="n">foo</span>
 <span class="gt">Traceback (most recent call last):</span>
-  <span class="c">...</span>
+<span class="w">  </span><span class="c">...</span>
 <span class="gr">AttributeError</span>: <span class="n">no enumerated value with that name: &#39;foo&#39;</span>
 </pre></div>
 </div>
@@ -645,7 +650,7 @@ <h3>Enum special methods<a class="headerlink" href="#enum-special-methods" title
 <span class="go">2</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="n">enum</span><span class="p">[</span><span class="s1">&#39;foo&#39;</span><span class="p">]</span>
 <span class="gt">Traceback (most recent call last):</span>
-  <span class="c">...</span>
+<span class="w">  </span><span class="c">...</span>
 <span class="gr">KeyError</span>: <span class="n">&quot;no enumerated value with that name: &#39;foo&#39;&quot;</span>
 </pre></div>
 </div>
diff --git a/usersguide/libref/hierarchy_classes.html b/usersguide/libref/hierarchy_classes.html
index c7bdcc0..538d995 100644
--- a/usersguide/libref/hierarchy_classes.html
+++ b/usersguide/libref/hierarchy_classes.html
@@ -1,10 +1,10 @@
 <!DOCTYPE html>
 <html class="writer-html5" lang="en" >
 <head>
-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Hierarchy definition classes &mdash; PyTables 3.9.0 documentation</title>
+  <title>Hierarchy definition classes &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/graphviz.css" type="text/css" />
@@ -17,6 +17,7 @@
         <script src="../../_static/underscore.js"></script>
         <script src="../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../_static/doctools.js"></script>
+        <script src="../../_static/sphinx_highlight.js"></script>
     <script src="../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../genindex.html" />
     <link rel="search" title="Search" href="../../search.html" />
@@ -41,15 +42,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../index.html">
-            <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../index.html">
+            
+              <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -81,10 +86,10 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../index.html">PyTables User’s Guide</a> &raquo;</li>
-          <li><a href="../libref.html">Library Reference</a> &raquo;</li>
-      <li>Hierarchy definition classes</li>
+      <li><a href="../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../index.html">PyTables User’s Guide</a></li>
+          <li class="breadcrumb-item"><a href="../libref.html">Library Reference</a></li>
+      <li class="breadcrumb-item active">Hierarchy definition classes</li>
       <li class="wy-breadcrumbs-aside">
             <a href="../../_sources/usersguide/libref/hierarchy_classes.rst.txt" rel="nofollow"> View page source</a>
       </li>
diff --git a/usersguide/libref/homogenous_storage.html b/usersguide/libref/homogenous_storage.html
index 15ccf67..2fc71f7 100644
--- a/usersguide/libref/homogenous_storage.html
+++ b/usersguide/libref/homogenous_storage.html
@@ -1,10 +1,10 @@
 <!DOCTYPE html>
 <html class="writer-html5" lang="en" >
 <head>
-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Homogenous storage classes &mdash; PyTables 3.9.0 documentation</title>
+  <title>Homogenous storage classes &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/graphviz.css" type="text/css" />
@@ -17,6 +17,7 @@
         <script src="../../_static/underscore.js"></script>
         <script src="../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../_static/doctools.js"></script>
+        <script src="../../_static/sphinx_highlight.js"></script>
     <script src="../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../genindex.html" />
     <link rel="search" title="Search" href="../../search.html" />
@@ -41,15 +42,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../index.html">
-            <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../index.html">
+            
+              <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -81,10 +86,10 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../index.html">PyTables User’s Guide</a> &raquo;</li>
-          <li><a href="../libref.html">Library Reference</a> &raquo;</li>
-      <li>Homogenous storage classes</li>
+      <li><a href="../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../index.html">PyTables User’s Guide</a></li>
+          <li class="breadcrumb-item"><a href="../libref.html">Library Reference</a></li>
+      <li class="breadcrumb-item active">Homogenous storage classes</li>
       <li class="wy-breadcrumbs-aside">
             <a href="../../_sources/usersguide/libref/homogenous_storage.rst.txt" rel="nofollow"> View page source</a>
       </li>
diff --git a/usersguide/libref/link_classes.html b/usersguide/libref/link_classes.html
index ed3f8a9..8569cc8 100644
--- a/usersguide/libref/link_classes.html
+++ b/usersguide/libref/link_classes.html
@@ -1,10 +1,10 @@
 <!DOCTYPE html>
 <html class="writer-html5" lang="en" >
 <head>
-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Link classes &mdash; PyTables 3.9.0 documentation</title>
+  <title>Link classes &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/graphviz.css" type="text/css" />
@@ -17,6 +17,7 @@
         <script src="../../_static/underscore.js"></script>
         <script src="../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../_static/doctools.js"></script>
+        <script src="../../_static/sphinx_highlight.js"></script>
     <script src="../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../genindex.html" />
     <link rel="search" title="Search" href="../../search.html" />
@@ -41,15 +42,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../index.html">
-            <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../index.html">
+            
+              <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -81,10 +86,10 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../index.html">PyTables User’s Guide</a> &raquo;</li>
-          <li><a href="../libref.html">Library Reference</a> &raquo;</li>
-      <li>Link classes</li>
+      <li><a href="../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../index.html">PyTables User’s Guide</a></li>
+          <li class="breadcrumb-item"><a href="../libref.html">Library Reference</a></li>
+      <li class="breadcrumb-item active">Link classes</li>
       <li class="wy-breadcrumbs-aside">
             <a href="../../_sources/usersguide/libref/link_classes.rst.txt" rel="nofollow"> View page source</a>
       </li>
diff --git a/usersguide/libref/structured_storage.html b/usersguide/libref/structured_storage.html
index 41d9f01..4b26d55 100644
--- a/usersguide/libref/structured_storage.html
+++ b/usersguide/libref/structured_storage.html
@@ -1,10 +1,10 @@
 <!DOCTYPE html>
 <html class="writer-html5" lang="en" >
 <head>
-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Structured storage classes &mdash; PyTables 3.9.0 documentation</title>
+  <title>Structured storage classes &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/graphviz.css" type="text/css" />
@@ -17,6 +17,7 @@
         <script src="../../_static/underscore.js"></script>
         <script src="../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../_static/doctools.js"></script>
+        <script src="../../_static/sphinx_highlight.js"></script>
     <script src="../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../genindex.html" />
     <link rel="search" title="Search" href="../../search.html" />
@@ -41,15 +42,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../index.html">
-            <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../index.html">
+            
+              <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -81,10 +86,10 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../index.html">PyTables User’s Guide</a> &raquo;</li>
-          <li><a href="../libref.html">Library Reference</a> &raquo;</li>
-      <li>Structured storage classes</li>
+      <li><a href="../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../index.html">PyTables User’s Guide</a></li>
+          <li class="breadcrumb-item"><a href="../libref.html">Library Reference</a></li>
+      <li class="breadcrumb-item active">Structured storage classes</li>
       <li class="wy-breadcrumbs-aside">
             <a href="../../_sources/usersguide/libref/structured_storage.rst.txt" rel="nofollow"> View page source</a>
       </li>
diff --git a/usersguide/libref/top_level.html b/usersguide/libref/top_level.html
index fcc6ccd..0e62fa4 100644
--- a/usersguide/libref/top_level.html
+++ b/usersguide/libref/top_level.html
@@ -1,10 +1,10 @@
 <!DOCTYPE html>
 <html class="writer-html5" lang="en" >
 <head>
-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Top-level variables and functions &mdash; PyTables 3.9.0 documentation</title>
+  <title>Top-level variables and functions &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../../_static/graphviz.css" type="text/css" />
@@ -17,6 +17,7 @@
         <script src="../../_static/underscore.js"></script>
         <script src="../../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../../_static/doctools.js"></script>
+        <script src="../../_static/sphinx_highlight.js"></script>
     <script src="../../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../../genindex.html" />
     <link rel="search" title="Search" href="../../search.html" />
@@ -41,15 +42,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../../index.html">
-            <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../../index.html">
+            
+              <img src="../../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -81,10 +86,10 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="../index.html">PyTables User’s Guide</a> &raquo;</li>
-          <li><a href="../libref.html">Library Reference</a> &raquo;</li>
-      <li>Top-level variables and functions</li>
+      <li><a href="../../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="../index.html">PyTables User’s Guide</a></li>
+          <li class="breadcrumb-item"><a href="../libref.html">Library Reference</a></li>
+      <li class="breadcrumb-item active">Top-level variables and functions</li>
       <li class="wy-breadcrumbs-aside">
             <a href="../../_sources/usersguide/libref/top_level.rst.txt" rel="nofollow"> View page source</a>
       </li>
@@ -100,7 +105,7 @@ <h1>Top-level variables and functions<a class="headerlink" href="#top-level-vari
 <h2>Global variables<a class="headerlink" href="#global-variables" title="Permalink to this heading">¶</a></h2>
 <dl class="py data">
 <dt class="sig sig-object py" id="tables.__version__">
-<span class="sig-prename descclassname"><span class="pre">tables.</span></span><span class="sig-name descname"><span class="pre">__version__</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">'3.9.0'</span></em><a class="headerlink" href="#tables.__version__" title="Permalink to this definition">¶</a></dt>
+<span class="sig-prename descclassname"><span class="pre">tables.</span></span><span class="sig-name descname"><span class="pre">__version__</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">'3.9.1'</span></em><a class="headerlink" href="#tables.__version__" title="Permalink to this definition">¶</a></dt>
 <dd><p>str(object=’’) -&gt; str
 str(bytes_or_buffer[, encoding[, errors]]) -&gt; str</p>
 <p>Create a new string object from the given object. If encoding or
@@ -114,7 +119,7 @@ <h2>Global variables<a class="headerlink" href="#global-variables" title="Permal
 
 <dl class="py data">
 <dt class="sig sig-object py" id="tables.hdf5_version">
-<span class="sig-prename descclassname"><span class="pre">tables.</span></span><span class="sig-name descname"><span class="pre">hdf5_version</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">'1.14.0'</span></em><a class="headerlink" href="#tables.hdf5_version" title="Permalink to this definition">¶</a></dt>
+<span class="sig-prename descclassname"><span class="pre">tables.</span></span><span class="sig-name descname"><span class="pre">hdf5_version</span></span><em class="property"><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="pre">'1.10.7'</span></em><a class="headerlink" href="#tables.hdf5_version" title="Permalink to this definition">¶</a></dt>
 <dd><p>The underlying HDF5 library version number.</p>
 <div class="versionadded">
 <p><span class="versionmodified added">New in version 3.0.</span></p>
diff --git a/usersguide/optimization.html b/usersguide/optimization.html
index 82081e8..0e2f24c 100644
--- a/usersguide/optimization.html
+++ b/usersguide/optimization.html
@@ -1,10 +1,10 @@
 <!DOCTYPE html>
 <html class="writer-html5" lang="en" >
 <head>
-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Optimization tips &mdash; PyTables 3.9.0 documentation</title>
+  <title>Optimization tips &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../_static/graphviz.css" type="text/css" />
@@ -17,6 +17,7 @@
         <script src="../_static/underscore.js"></script>
         <script src="../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../_static/doctools.js"></script>
+        <script src="../_static/sphinx_highlight.js"></script>
     <script src="../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../genindex.html" />
     <link rel="search" title="Search" href="../search.html" />
@@ -41,15 +42,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../index.html">
-            <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../index.html">
+            
+              <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -81,9 +86,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="index.html">PyTables User’s Guide</a> &raquo;</li>
-      <li>Optimization tips</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="index.html">PyTables User’s Guide</a></li>
+      <li class="breadcrumb-item active">Optimization tips</li>
       <li class="wy-breadcrumbs-aside">
             <a href="../_sources/usersguide/optimization.rst.txt" rel="nofollow"> View page source</a>
       </li>
@@ -351,7 +356,7 @@ <h2>Understanding chunking<a class="headerlink" href="#understanding-chunking" t
 Let’s see an example of an <em>in-kernel</em> query based on the <em>regular</em> one
 mentioned above:</p>
 <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">result</span> <span class="o">=</span> <span class="p">[</span><span class="n">row</span><span class="p">[</span><span class="s1">&#39;col2&#39;</span><span class="p">]</span> <span class="k">for</span> <span class="n">row</span> <span class="ow">in</span> <span class="n">table</span><span class="o">.</span><span class="n">where</span><span class="p">(</span>
-            <span class="sd">&#39;&#39;&#39;(((col4 &gt;= lim1) &amp; (col4 &lt; lim2)) |</span>
+<span class="w">            </span><span class="sd">&#39;&#39;&#39;(((col4 &gt;= lim1) &amp; (col4 &lt; lim2)) |</span>
 <span class="sd">               ((col2 &gt; lim3) &amp; (col2 &lt; lim4)) &amp;</span>
 <span class="sd">               ((col1+3.1*col2+col3*col4) &gt; lim5))&#39;&#39;&#39;</span><span class="p">)]</span>
 </pre></div>
@@ -676,7 +681,7 @@ <h3>Achieving ultimate speed: sorted tables and beyond<a class="headerlink" href
 to confirm this guess.</p>
 <p>For the case of the query that we have been using in the previous sections:</p>
 <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">result</span> <span class="o">=</span> <span class="p">[</span><span class="n">row</span><span class="p">[</span><span class="s1">&#39;col2&#39;</span><span class="p">]</span> <span class="k">for</span> <span class="n">row</span> <span class="ow">in</span> <span class="n">table</span><span class="o">.</span><span class="n">where</span><span class="p">(</span>
-            <span class="sd">&#39;&#39;&#39;(((col4 &gt;= lim1) &amp; (col4 &lt; lim2)) |</span>
+<span class="w">            </span><span class="sd">&#39;&#39;&#39;(((col4 &gt;= lim1) &amp; (col4 &lt; lim2)) |</span>
 <span class="sd">               ((col2 &gt; lim3) &amp; (col2 &lt; lim4)) &amp;</span>
 <span class="sd">               ((col1+3.1*col2+col3*col4) &gt; lim5))&#39;&#39;&#39;</span><span class="p">)]</span>
 </pre></div>
diff --git a/usersguide/parameter_files.html b/usersguide/parameter_files.html
index 78c3f4d..6c8fc83 100644
--- a/usersguide/parameter_files.html
+++ b/usersguide/parameter_files.html
@@ -1,10 +1,10 @@
 <!DOCTYPE html>
 <html class="writer-html5" lang="en" >
 <head>
-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>PyTables parameter files &mdash; PyTables 3.9.0 documentation</title>
+  <title>PyTables parameter files &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../_static/graphviz.css" type="text/css" />
@@ -17,6 +17,7 @@
         <script src="../_static/underscore.js"></script>
         <script src="../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../_static/doctools.js"></script>
+        <script src="../_static/sphinx_highlight.js"></script>
     <script src="../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../genindex.html" />
     <link rel="search" title="Search" href="../search.html" />
@@ -41,15 +42,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../index.html">
-            <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../index.html">
+            
+              <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -81,9 +86,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="index.html">PyTables User’s Guide</a> &raquo;</li>
-      <li>PyTables parameter files</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="index.html">PyTables User’s Guide</a></li>
+      <li class="breadcrumb-item active">PyTables parameter files</li>
       <li class="wy-breadcrumbs-aside">
             <a href="../_sources/usersguide/parameter_files.rst.txt" rel="nofollow"> View page source</a>
       </li>
diff --git a/usersguide/tutorials.html b/usersguide/tutorials.html
index 7180223..4069124 100644
--- a/usersguide/tutorials.html
+++ b/usersguide/tutorials.html
@@ -1,10 +1,10 @@
 <!DOCTYPE html>
 <html class="writer-html5" lang="en" >
 <head>
-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Tutorials &mdash; PyTables 3.9.0 documentation</title>
+  <title>Tutorials &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../_static/graphviz.css" type="text/css" />
@@ -17,6 +17,7 @@
         <script src="../_static/underscore.js"></script>
         <script src="../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../_static/doctools.js"></script>
+        <script src="../_static/sphinx_highlight.js"></script>
     <script src="../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../genindex.html" />
     <link rel="search" title="Search" href="../search.html" />
@@ -41,15 +42,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../index.html">
-            <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../index.html">
+            
+              <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -81,9 +86,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="index.html">PyTables User’s Guide</a> &raquo;</li>
-      <li>Tutorials</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="index.html">PyTables User’s Guide</a></li>
+      <li class="breadcrumb-item active">Tutorials</li>
       <li class="wy-breadcrumbs-aside">
             <a href="../_sources/usersguide/tutorials.rst.txt" rel="nofollow"> View page source</a>
       </li>
@@ -174,7 +179,7 @@ <h3>Declaring a Column Descriptor<a class="headerlink" href="#declaring-a-column
 <span class="gp">... </span>    <span class="n">grid_j</span>    <span class="o">=</span> <span class="n">Int32Col</span><span class="p">()</span>      <span class="c1"># 32-bit integer</span>
 <span class="gp">... </span>    <span class="n">pressure</span>  <span class="o">=</span> <span class="n">Float32Col</span><span class="p">()</span>    <span class="c1"># float  (single-precision)</span>
 <span class="gp">... </span>    <span class="n">energy</span>    <span class="o">=</span> <span class="n">Float64Col</span><span class="p">()</span>    <span class="c1"># double (double-precision)</span>
-<span class="go">&gt;&gt;&gt;</span>
+<span class="gp">&gt;&gt;&gt;</span>
 </pre></div>
 </div>
 <p>This definition class is self-explanatory. Basically, you declare a class
@@ -289,7 +294,7 @@ <h3>Creating a new table<a class="headerlink" href="#creating-a-new-table" title
 <span class="gp">... </span>    <span class="n">particle</span><span class="p">[</span><span class="s1">&#39;idnumber&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">i</span> <span class="o">*</span> <span class="p">(</span><span class="mi">2</span> <span class="o">**</span> <span class="mi">34</span><span class="p">)</span>
 <span class="gp">... </span>    <span class="c1"># Insert a new particle record</span>
 <span class="gp">... </span>    <span class="n">particle</span><span class="o">.</span><span class="n">append</span><span class="p">()</span>
-<span class="go">&gt;&gt;&gt;</span>
+<span class="gp">&gt;&gt;&gt;</span>
 </pre></div>
 </div>
 <p>This code should be easy to understand. The lines inside the loop just assign
@@ -451,38 +456,38 @@ <h3>Closing the file and looking at its content<a class="headerlink" href="#clos
 <p>You have now created your first PyTables file with a table and two arrays.
 You can examine it with any generic HDF5 tool, such as h5dump or h5ls. Here is
 what the tutorial1.h5 looks like when read with the h5ls program.</p>
-<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$ h5ls -rd tutorial1.h5
-/columns                 Group
-/columns/name            Dataset <span class="o">{</span><span class="m">3</span><span class="o">}</span>
-    Data:
-        <span class="o">(</span><span class="m">0</span><span class="o">)</span> <span class="s2">&quot;Particle:      5&quot;</span>, <span class="s2">&quot;Particle:      6&quot;</span>, <span class="s2">&quot;Particle:      7&quot;</span>
-/columns/pressure        Dataset <span class="o">{</span><span class="m">3</span><span class="o">}</span>
-    Data:
-        <span class="o">(</span><span class="m">0</span><span class="o">)</span> <span class="m">25</span>, <span class="m">36</span>, <span class="m">49</span>
-/detector                Group
-/detector/readout        Dataset <span class="o">{</span><span class="m">10</span>/Inf<span class="o">}</span>
-    Data:
-        <span class="o">(</span><span class="m">0</span><span class="o">)</span> <span class="o">{</span><span class="m">0</span>, <span class="m">0</span>, <span class="m">0</span>, <span class="m">0</span>, <span class="m">10</span>, <span class="m">0</span>, <span class="s2">&quot;Particle:      0&quot;</span>, <span class="m">0</span><span class="o">}</span>,
-        <span class="o">(</span><span class="m">1</span><span class="o">)</span> <span class="o">{</span><span class="m">256</span>, <span class="m">1</span>, <span class="m">1</span>, <span class="m">1</span>, <span class="m">9</span>, <span class="m">17179869184</span>, <span class="s2">&quot;Particle:      1&quot;</span>, <span class="m">1</span><span class="o">}</span>,
-        <span class="o">(</span><span class="m">2</span><span class="o">)</span> <span class="o">{</span><span class="m">512</span>, <span class="m">2</span>, <span class="m">256</span>, <span class="m">2</span>, <span class="m">8</span>, <span class="m">34359738368</span>, <span class="s2">&quot;Particle:      2&quot;</span>, <span class="m">4</span><span class="o">}</span>,
-        <span class="o">(</span><span class="m">3</span><span class="o">)</span> <span class="o">{</span><span class="m">768</span>, <span class="m">3</span>, <span class="m">6561</span>, <span class="m">3</span>, <span class="m">7</span>, <span class="m">51539607552</span>, <span class="s2">&quot;Particle:      3&quot;</span>, <span class="m">9</span><span class="o">}</span>,
-        <span class="o">(</span><span class="m">4</span><span class="o">)</span> <span class="o">{</span><span class="m">1024</span>, <span class="m">4</span>, <span class="m">65536</span>, <span class="m">4</span>, <span class="m">6</span>, <span class="m">68719476736</span>, <span class="s2">&quot;Particle:      4&quot;</span>, <span class="m">16</span><span class="o">}</span>,
-        <span class="o">(</span><span class="m">5</span><span class="o">)</span> <span class="o">{</span><span class="m">1280</span>, <span class="m">5</span>, <span class="m">390625</span>, <span class="m">5</span>, <span class="m">5</span>, <span class="m">85899345920</span>, <span class="s2">&quot;Particle:      5&quot;</span>, <span class="m">25</span><span class="o">}</span>,
-        <span class="o">(</span><span class="m">6</span><span class="o">)</span> <span class="o">{</span><span class="m">1536</span>, <span class="m">6</span>, <span class="m">1679616</span>, <span class="m">6</span>, <span class="m">4</span>, <span class="m">103079215104</span>, <span class="s2">&quot;Particle:      6&quot;</span>, <span class="m">36</span><span class="o">}</span>,
-        <span class="o">(</span><span class="m">7</span><span class="o">)</span> <span class="o">{</span><span class="m">1792</span>, <span class="m">7</span>, <span class="m">5764801</span>, <span class="m">7</span>, <span class="m">3</span>, <span class="m">120259084288</span>, <span class="s2">&quot;Particle:      7&quot;</span>, <span class="m">49</span><span class="o">}</span>,
-        <span class="o">(</span><span class="m">8</span><span class="o">)</span> <span class="o">{</span><span class="m">2048</span>, <span class="m">8</span>, <span class="m">16777216</span>, <span class="m">8</span>, <span class="m">2</span>, <span class="m">137438953472</span>, <span class="s2">&quot;Particle:      8&quot;</span>, <span class="m">64</span><span class="o">}</span>,
-        <span class="o">(</span><span class="m">9</span><span class="o">)</span> <span class="o">{</span><span class="m">2304</span>, <span class="m">9</span>, <span class="m">43046721</span>, <span class="m">9</span>, <span class="m">1</span>, <span class="m">154618822656</span>, <span class="s2">&quot;Particle:      9&quot;</span>, <span class="m">81</span><span class="o">}</span>
+<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$<span class="w"> </span>h5ls<span class="w"> </span>-rd<span class="w"> </span>tutorial1.h5
+/columns<span class="w">                 </span>Group
+/columns/name<span class="w">            </span>Dataset<span class="w"> </span><span class="o">{</span><span class="m">3</span><span class="o">}</span>
+<span class="w">    </span>Data:
+<span class="w">        </span><span class="o">(</span><span class="m">0</span><span class="o">)</span><span class="w"> </span><span class="s2">&quot;Particle:      5&quot;</span>,<span class="w"> </span><span class="s2">&quot;Particle:      6&quot;</span>,<span class="w"> </span><span class="s2">&quot;Particle:      7&quot;</span>
+/columns/pressure<span class="w">        </span>Dataset<span class="w"> </span><span class="o">{</span><span class="m">3</span><span class="o">}</span>
+<span class="w">    </span>Data:
+<span class="w">        </span><span class="o">(</span><span class="m">0</span><span class="o">)</span><span class="w"> </span><span class="m">25</span>,<span class="w"> </span><span class="m">36</span>,<span class="w"> </span><span class="m">49</span>
+/detector<span class="w">                </span>Group
+/detector/readout<span class="w">        </span>Dataset<span class="w"> </span><span class="o">{</span><span class="m">10</span>/Inf<span class="o">}</span>
+<span class="w">    </span>Data:
+<span class="w">        </span><span class="o">(</span><span class="m">0</span><span class="o">)</span><span class="w"> </span><span class="o">{</span><span class="m">0</span>,<span class="w"> </span><span class="m">0</span>,<span class="w"> </span><span class="m">0</span>,<span class="w"> </span><span class="m">0</span>,<span class="w"> </span><span class="m">10</span>,<span class="w"> </span><span class="m">0</span>,<span class="w"> </span><span class="s2">&quot;Particle:      0&quot;</span>,<span class="w"> </span><span class="m">0</span><span class="o">}</span>,
+<span class="w">        </span><span class="o">(</span><span class="m">1</span><span class="o">)</span><span class="w"> </span><span class="o">{</span><span class="m">256</span>,<span class="w"> </span><span class="m">1</span>,<span class="w"> </span><span class="m">1</span>,<span class="w"> </span><span class="m">1</span>,<span class="w"> </span><span class="m">9</span>,<span class="w"> </span><span class="m">17179869184</span>,<span class="w"> </span><span class="s2">&quot;Particle:      1&quot;</span>,<span class="w"> </span><span class="m">1</span><span class="o">}</span>,
+<span class="w">        </span><span class="o">(</span><span class="m">2</span><span class="o">)</span><span class="w"> </span><span class="o">{</span><span class="m">512</span>,<span class="w"> </span><span class="m">2</span>,<span class="w"> </span><span class="m">256</span>,<span class="w"> </span><span class="m">2</span>,<span class="w"> </span><span class="m">8</span>,<span class="w"> </span><span class="m">34359738368</span>,<span class="w"> </span><span class="s2">&quot;Particle:      2&quot;</span>,<span class="w"> </span><span class="m">4</span><span class="o">}</span>,
+<span class="w">        </span><span class="o">(</span><span class="m">3</span><span class="o">)</span><span class="w"> </span><span class="o">{</span><span class="m">768</span>,<span class="w"> </span><span class="m">3</span>,<span class="w"> </span><span class="m">6561</span>,<span class="w"> </span><span class="m">3</span>,<span class="w"> </span><span class="m">7</span>,<span class="w"> </span><span class="m">51539607552</span>,<span class="w"> </span><span class="s2">&quot;Particle:      3&quot;</span>,<span class="w"> </span><span class="m">9</span><span class="o">}</span>,
+<span class="w">        </span><span class="o">(</span><span class="m">4</span><span class="o">)</span><span class="w"> </span><span class="o">{</span><span class="m">1024</span>,<span class="w"> </span><span class="m">4</span>,<span class="w"> </span><span class="m">65536</span>,<span class="w"> </span><span class="m">4</span>,<span class="w"> </span><span class="m">6</span>,<span class="w"> </span><span class="m">68719476736</span>,<span class="w"> </span><span class="s2">&quot;Particle:      4&quot;</span>,<span class="w"> </span><span class="m">16</span><span class="o">}</span>,
+<span class="w">        </span><span class="o">(</span><span class="m">5</span><span class="o">)</span><span class="w"> </span><span class="o">{</span><span class="m">1280</span>,<span class="w"> </span><span class="m">5</span>,<span class="w"> </span><span class="m">390625</span>,<span class="w"> </span><span class="m">5</span>,<span class="w"> </span><span class="m">5</span>,<span class="w"> </span><span class="m">85899345920</span>,<span class="w"> </span><span class="s2">&quot;Particle:      5&quot;</span>,<span class="w"> </span><span class="m">25</span><span class="o">}</span>,
+<span class="w">        </span><span class="o">(</span><span class="m">6</span><span class="o">)</span><span class="w"> </span><span class="o">{</span><span class="m">1536</span>,<span class="w"> </span><span class="m">6</span>,<span class="w"> </span><span class="m">1679616</span>,<span class="w"> </span><span class="m">6</span>,<span class="w"> </span><span class="m">4</span>,<span class="w"> </span><span class="m">103079215104</span>,<span class="w"> </span><span class="s2">&quot;Particle:      6&quot;</span>,<span class="w"> </span><span class="m">36</span><span class="o">}</span>,
+<span class="w">        </span><span class="o">(</span><span class="m">7</span><span class="o">)</span><span class="w"> </span><span class="o">{</span><span class="m">1792</span>,<span class="w"> </span><span class="m">7</span>,<span class="w"> </span><span class="m">5764801</span>,<span class="w"> </span><span class="m">7</span>,<span class="w"> </span><span class="m">3</span>,<span class="w"> </span><span class="m">120259084288</span>,<span class="w"> </span><span class="s2">&quot;Particle:      7&quot;</span>,<span class="w"> </span><span class="m">49</span><span class="o">}</span>,
+<span class="w">        </span><span class="o">(</span><span class="m">8</span><span class="o">)</span><span class="w"> </span><span class="o">{</span><span class="m">2048</span>,<span class="w"> </span><span class="m">8</span>,<span class="w"> </span><span class="m">16777216</span>,<span class="w"> </span><span class="m">8</span>,<span class="w"> </span><span class="m">2</span>,<span class="w"> </span><span class="m">137438953472</span>,<span class="w"> </span><span class="s2">&quot;Particle:      8&quot;</span>,<span class="w"> </span><span class="m">64</span><span class="o">}</span>,
+<span class="w">        </span><span class="o">(</span><span class="m">9</span><span class="o">)</span><span class="w"> </span><span class="o">{</span><span class="m">2304</span>,<span class="w"> </span><span class="m">9</span>,<span class="w"> </span><span class="m">43046721</span>,<span class="w"> </span><span class="m">9</span>,<span class="w"> </span><span class="m">1</span>,<span class="w"> </span><span class="m">154618822656</span>,<span class="w"> </span><span class="s2">&quot;Particle:      9&quot;</span>,<span class="w"> </span><span class="m">81</span><span class="o">}</span>
 </pre></div>
 </div>
 <p>Here’s the output as displayed by the “ptdump” PyTables utility (located in
 utils/ directory).</p>
-<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$ ptdump tutorial1.h5
-/ <span class="o">(</span>RootGroup<span class="o">)</span> <span class="s1">&#39;Test file&#39;</span>
-/columns <span class="o">(</span>Group<span class="o">)</span> <span class="s1">&#39;Pressure and Name&#39;</span>
-/columns/name <span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span> <span class="s1">&#39;Name column selection&#39;</span>
-/columns/pressure <span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span> <span class="s1">&#39;Pressure column selection&#39;</span>
-/detector <span class="o">(</span>Group<span class="o">)</span> <span class="s1">&#39;Detector information&#39;</span>
-/detector/readout <span class="o">(</span>Table<span class="o">(</span><span class="m">10</span>,<span class="o">))</span> <span class="s1">&#39;Readout example&#39;</span>
+<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$<span class="w"> </span>ptdump<span class="w"> </span>tutorial1.h5
+/<span class="w"> </span><span class="o">(</span>RootGroup<span class="o">)</span><span class="w"> </span><span class="s1">&#39;Test file&#39;</span>
+/columns<span class="w"> </span><span class="o">(</span>Group<span class="o">)</span><span class="w"> </span><span class="s1">&#39;Pressure and Name&#39;</span>
+/columns/name<span class="w"> </span><span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span><span class="w"> </span><span class="s1">&#39;Name column selection&#39;</span>
+/columns/pressure<span class="w"> </span><span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span><span class="w"> </span><span class="s1">&#39;Pressure column selection&#39;</span>
+/detector<span class="w"> </span><span class="o">(</span>Group<span class="o">)</span><span class="w"> </span><span class="s1">&#39;Detector information&#39;</span>
+/detector/readout<span class="w"> </span><span class="o">(</span>Table<span class="o">(</span><span class="m">10</span>,<span class="o">))</span><span class="w"> </span><span class="s1">&#39;Readout example&#39;</span>
 </pre></div>
 </div>
 <p>You can pass the <cite>-v</cite> or <cite>-d</cite> options to ptdump if you want
@@ -691,9 +696,9 @@ <h3>Setting and getting user attributes<a class="headerlink" href="#setting-and-
 <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="n">table</span><span class="o">.</span><span class="n">attrs</span><span class="o">.</span><span class="n">_f_rename</span><span class="p">(</span><span class="s2">&quot;VERSION&quot;</span><span class="p">,</span> <span class="s2">&quot;version&quot;</span><span class="p">)</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="n">table</span><span class="o">.</span><span class="n">attrs</span><span class="o">.</span><span class="n">VERSION</span>
 <span class="gt">Traceback (most recent call last):</span>
-    <span class="n">File</span> <span class="s2">&quot;&lt;stdin&gt;&quot;</span><span class="p">,</span> <span class="n">line</span> <span class="mi">1</span><span class="p">,</span> <span class="ow">in</span> <span class="o">&lt;</span><span class="n">module</span><span class="o">&gt;</span>
-    <span class="n">File</span> <span class="s2">&quot;tables/attributeset.py&quot;</span><span class="p">,</span> <span class="n">line</span> <span class="mi">222</span><span class="p">,</span> <span class="ow">in</span> <span class="fm">__getattr__</span>
-        <span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v__nodepath</span><span class="p">)</span>
+<span class="w">    </span><span class="n">File</span> <span class="s2">&quot;&lt;stdin&gt;&quot;</span><span class="p">,</span> <span class="n">line</span> <span class="mi">1</span><span class="p">,</span> <span class="ow">in</span> <span class="o">&lt;</span><span class="n">module</span><span class="o">&gt;</span>
+<span class="w">    </span><span class="n">File</span> <span class="s2">&quot;tables/attributeset.py&quot;</span><span class="p">,</span> <span class="n">line</span> <span class="mi">222</span><span class="p">,</span> <span class="ow">in</span> <span class="fm">__getattr__</span>
+<span class="w">    </span>    <span class="p">(</span><span class="n">name</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">_v__nodepath</span><span class="p">)</span>
 <span class="gr">AttributeError</span>: <span class="n">Attribute &#39;VERSION&#39; does not exist in node: &#39;/detector/readout&#39;</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="n">table</span><span class="o">.</span><span class="n">attrs</span><span class="o">.</span><span class="n">version</span>
 <span class="go">&#39;2.6&#39;</span>
@@ -712,69 +717,69 @@ <h3>Setting and getting user attributes<a class="headerlink" href="#setting-and-
 <p>Ok, that’s better. If you would terminate your session now, you would be able
 to use the h5ls command to read the /detector/readout attributes from the
 file written to disk.</p>
-<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$ h5ls -vr tutorial1.h5/detector/readout
-Opened <span class="s2">&quot;tutorial1.h5&quot;</span> with sec2 driver.
-/detector/readout        Dataset <span class="o">{</span><span class="m">10</span>/Inf<span class="o">}</span>
-    Attribute: CLASS     scalar
-        Type:      <span class="m">6</span>-byte null-terminated ASCII string
-        Data:  <span class="s2">&quot;TABLE&quot;</span>
-    Attribute: VERSION   scalar
-        Type:      <span class="m">4</span>-byte null-terminated ASCII string
-        Data:  <span class="s2">&quot;2.6&quot;</span>
-    Attribute: TITLE     scalar
-        Type:      <span class="m">16</span>-byte null-terminated ASCII string
-        Data:  <span class="s2">&quot;Readout example&quot;</span>
-    Attribute: NROWS     scalar
-        Type:      native long long
-        Data:  <span class="m">10</span>
-    Attribute: FIELD_0_NAME scalar
-        Type:      <span class="m">9</span>-byte null-terminated ASCII string
-        Data:  <span class="s2">&quot;ADCcount&quot;</span>
-    Attribute: FIELD_1_NAME scalar
-        Type:      <span class="m">9</span>-byte null-terminated ASCII string
-        Data:  <span class="s2">&quot;TDCcount&quot;</span>
-    Attribute: FIELD_2_NAME scalar
-        Type:      <span class="m">7</span>-byte null-terminated ASCII string
-        Data:  <span class="s2">&quot;energy&quot;</span>
-    Attribute: FIELD_3_NAME scalar
-        Type:      <span class="m">7</span>-byte null-terminated ASCII string
-        Data:  <span class="s2">&quot;grid_i&quot;</span>
-    Attribute: FIELD_4_NAME scalar
-        Type:      <span class="m">7</span>-byte null-terminated ASCII string
-        Data:  <span class="s2">&quot;grid_j&quot;</span>
-    Attribute: FIELD_5_NAME scalar
-        Type:      <span class="m">9</span>-byte null-terminated ASCII string
-        Data:  <span class="s2">&quot;idnumber&quot;</span>
-    Attribute: FIELD_6_NAME scalar
-        Type:      <span class="m">5</span>-byte null-terminated ASCII string
-        Data:  <span class="s2">&quot;name&quot;</span>
-    Attribute: FIELD_7_NAME scalar
-        Type:      <span class="m">9</span>-byte null-terminated ASCII string
-        Data:  <span class="s2">&quot;pressure&quot;</span>
-    Attribute: FLAVOR    scalar
-        Type:      <span class="m">5</span>-byte null-terminated ASCII string
-        Data:  <span class="s2">&quot;numpy&quot;</span>
-    Attribute: tempScale scalar
-        Type:      <span class="m">7</span>-byte null-terminated ASCII string
-        Data:  <span class="s2">&quot;Celsius&quot;</span>
-    Attribute: temperature scalar
-        Type:      native double
-        Data:  <span class="m">18</span>.4
-    Location:  <span class="m">0</span>:1:0:1952
-    Links:     <span class="m">1</span>
-    Modified:  <span class="m">2006</span>-12-11 <span class="m">10</span>:35:13 CET
-    Chunks:    <span class="o">{</span><span class="m">85</span><span class="o">}</span> <span class="m">3995</span> bytes
-    Storage:   <span class="m">470</span> logical bytes, <span class="m">3995</span> allocated bytes, <span class="m">11</span>.76% utilization
-    Type:      struct <span class="o">{</span>
-                    <span class="s2">&quot;ADCcount&quot;</span>         +0    native unsigned short
-                    <span class="s2">&quot;TDCcount&quot;</span>         +2    native unsigned char
-                    <span class="s2">&quot;energy&quot;</span>           +3    native double
-                    <span class="s2">&quot;grid_i&quot;</span>           +11   native int
-                    <span class="s2">&quot;grid_j&quot;</span>           +15   native int
-                    <span class="s2">&quot;idnumber&quot;</span>         +19   native long long
-                    <span class="s2">&quot;name&quot;</span>             +27   <span class="m">16</span>-byte null-terminated ASCII string
-                    <span class="s2">&quot;pressure&quot;</span>         +43   native float
-                <span class="o">}</span> <span class="m">47</span> bytes
+<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$<span class="w"> </span>h5ls<span class="w"> </span>-vr<span class="w"> </span>tutorial1.h5/detector/readout
+Opened<span class="w"> </span><span class="s2">&quot;tutorial1.h5&quot;</span><span class="w"> </span>with<span class="w"> </span>sec2<span class="w"> </span>driver.
+/detector/readout<span class="w">        </span>Dataset<span class="w"> </span><span class="o">{</span><span class="m">10</span>/Inf<span class="o">}</span>
+<span class="w">    </span>Attribute:<span class="w"> </span>CLASS<span class="w">     </span>scalar
+<span class="w">        </span>Type:<span class="w">      </span><span class="m">6</span>-byte<span class="w"> </span>null-terminated<span class="w"> </span>ASCII<span class="w"> </span>string
+<span class="w">        </span>Data:<span class="w">  </span><span class="s2">&quot;TABLE&quot;</span>
+<span class="w">    </span>Attribute:<span class="w"> </span>VERSION<span class="w">   </span>scalar
+<span class="w">        </span>Type:<span class="w">      </span><span class="m">4</span>-byte<span class="w"> </span>null-terminated<span class="w"> </span>ASCII<span class="w"> </span>string
+<span class="w">        </span>Data:<span class="w">  </span><span class="s2">&quot;2.6&quot;</span>
+<span class="w">    </span>Attribute:<span class="w"> </span>TITLE<span class="w">     </span>scalar
+<span class="w">        </span>Type:<span class="w">      </span><span class="m">16</span>-byte<span class="w"> </span>null-terminated<span class="w"> </span>ASCII<span class="w"> </span>string
+<span class="w">        </span>Data:<span class="w">  </span><span class="s2">&quot;Readout example&quot;</span>
+<span class="w">    </span>Attribute:<span class="w"> </span>NROWS<span class="w">     </span>scalar
+<span class="w">        </span>Type:<span class="w">      </span>native<span class="w"> </span>long<span class="w"> </span>long
+<span class="w">        </span>Data:<span class="w">  </span><span class="m">10</span>
+<span class="w">    </span>Attribute:<span class="w"> </span>FIELD_0_NAME<span class="w"> </span>scalar
+<span class="w">        </span>Type:<span class="w">      </span><span class="m">9</span>-byte<span class="w"> </span>null-terminated<span class="w"> </span>ASCII<span class="w"> </span>string
+<span class="w">        </span>Data:<span class="w">  </span><span class="s2">&quot;ADCcount&quot;</span>
+<span class="w">    </span>Attribute:<span class="w"> </span>FIELD_1_NAME<span class="w"> </span>scalar
+<span class="w">        </span>Type:<span class="w">      </span><span class="m">9</span>-byte<span class="w"> </span>null-terminated<span class="w"> </span>ASCII<span class="w"> </span>string
+<span class="w">        </span>Data:<span class="w">  </span><span class="s2">&quot;TDCcount&quot;</span>
+<span class="w">    </span>Attribute:<span class="w"> </span>FIELD_2_NAME<span class="w"> </span>scalar
+<span class="w">        </span>Type:<span class="w">      </span><span class="m">7</span>-byte<span class="w"> </span>null-terminated<span class="w"> </span>ASCII<span class="w"> </span>string
+<span class="w">        </span>Data:<span class="w">  </span><span class="s2">&quot;energy&quot;</span>
+<span class="w">    </span>Attribute:<span class="w"> </span>FIELD_3_NAME<span class="w"> </span>scalar
+<span class="w">        </span>Type:<span class="w">      </span><span class="m">7</span>-byte<span class="w"> </span>null-terminated<span class="w"> </span>ASCII<span class="w"> </span>string
+<span class="w">        </span>Data:<span class="w">  </span><span class="s2">&quot;grid_i&quot;</span>
+<span class="w">    </span>Attribute:<span class="w"> </span>FIELD_4_NAME<span class="w"> </span>scalar
+<span class="w">        </span>Type:<span class="w">      </span><span class="m">7</span>-byte<span class="w"> </span>null-terminated<span class="w"> </span>ASCII<span class="w"> </span>string
+<span class="w">        </span>Data:<span class="w">  </span><span class="s2">&quot;grid_j&quot;</span>
+<span class="w">    </span>Attribute:<span class="w"> </span>FIELD_5_NAME<span class="w"> </span>scalar
+<span class="w">        </span>Type:<span class="w">      </span><span class="m">9</span>-byte<span class="w"> </span>null-terminated<span class="w"> </span>ASCII<span class="w"> </span>string
+<span class="w">        </span>Data:<span class="w">  </span><span class="s2">&quot;idnumber&quot;</span>
+<span class="w">    </span>Attribute:<span class="w"> </span>FIELD_6_NAME<span class="w"> </span>scalar
+<span class="w">        </span>Type:<span class="w">      </span><span class="m">5</span>-byte<span class="w"> </span>null-terminated<span class="w"> </span>ASCII<span class="w"> </span>string
+<span class="w">        </span>Data:<span class="w">  </span><span class="s2">&quot;name&quot;</span>
+<span class="w">    </span>Attribute:<span class="w"> </span>FIELD_7_NAME<span class="w"> </span>scalar
+<span class="w">        </span>Type:<span class="w">      </span><span class="m">9</span>-byte<span class="w"> </span>null-terminated<span class="w"> </span>ASCII<span class="w"> </span>string
+<span class="w">        </span>Data:<span class="w">  </span><span class="s2">&quot;pressure&quot;</span>
+<span class="w">    </span>Attribute:<span class="w"> </span>FLAVOR<span class="w">    </span>scalar
+<span class="w">        </span>Type:<span class="w">      </span><span class="m">5</span>-byte<span class="w"> </span>null-terminated<span class="w"> </span>ASCII<span class="w"> </span>string
+<span class="w">        </span>Data:<span class="w">  </span><span class="s2">&quot;numpy&quot;</span>
+<span class="w">    </span>Attribute:<span class="w"> </span>tempScale<span class="w"> </span>scalar
+<span class="w">        </span>Type:<span class="w">      </span><span class="m">7</span>-byte<span class="w"> </span>null-terminated<span class="w"> </span>ASCII<span class="w"> </span>string
+<span class="w">        </span>Data:<span class="w">  </span><span class="s2">&quot;Celsius&quot;</span>
+<span class="w">    </span>Attribute:<span class="w"> </span>temperature<span class="w"> </span>scalar
+<span class="w">        </span>Type:<span class="w">      </span>native<span class="w"> </span>double
+<span class="w">        </span>Data:<span class="w">  </span><span class="m">18</span>.4
+<span class="w">    </span>Location:<span class="w">  </span><span class="m">0</span>:1:0:1952
+<span class="w">    </span>Links:<span class="w">     </span><span class="m">1</span>
+<span class="w">    </span>Modified:<span class="w">  </span><span class="m">2006</span>-12-11<span class="w"> </span><span class="m">10</span>:35:13<span class="w"> </span>CET
+<span class="w">    </span>Chunks:<span class="w">    </span><span class="o">{</span><span class="m">85</span><span class="o">}</span><span class="w"> </span><span class="m">3995</span><span class="w"> </span>bytes
+<span class="w">    </span>Storage:<span class="w">   </span><span class="m">470</span><span class="w"> </span>logical<span class="w"> </span>bytes,<span class="w"> </span><span class="m">3995</span><span class="w"> </span>allocated<span class="w"> </span>bytes,<span class="w"> </span><span class="m">11</span>.76%<span class="w"> </span>utilization
+<span class="w">    </span>Type:<span class="w">      </span>struct<span class="w"> </span><span class="o">{</span>
+<span class="w">                    </span><span class="s2">&quot;ADCcount&quot;</span><span class="w">         </span>+0<span class="w">    </span>native<span class="w"> </span>unsigned<span class="w"> </span>short
+<span class="w">                    </span><span class="s2">&quot;TDCcount&quot;</span><span class="w">         </span>+2<span class="w">    </span>native<span class="w"> </span>unsigned<span class="w"> </span>char
+<span class="w">                    </span><span class="s2">&quot;energy&quot;</span><span class="w">           </span>+3<span class="w">    </span>native<span class="w"> </span>double
+<span class="w">                    </span><span class="s2">&quot;grid_i&quot;</span><span class="w">           </span>+11<span class="w">   </span>native<span class="w"> </span>int
+<span class="w">                    </span><span class="s2">&quot;grid_j&quot;</span><span class="w">           </span>+15<span class="w">   </span>native<span class="w"> </span>int
+<span class="w">                    </span><span class="s2">&quot;idnumber&quot;</span><span class="w">         </span>+19<span class="w">   </span>native<span class="w"> </span>long<span class="w"> </span>long
+<span class="w">                    </span><span class="s2">&quot;name&quot;</span><span class="w">             </span>+27<span class="w">   </span><span class="m">16</span>-byte<span class="w"> </span>null-terminated<span class="w"> </span>ASCII<span class="w"> </span>string
+<span class="w">                    </span><span class="s2">&quot;pressure&quot;</span><span class="w">         </span>+43<span class="w">   </span>native<span class="w"> </span>float
+<span class="w">                </span><span class="o">}</span><span class="w"> </span><span class="m">47</span><span class="w"> </span>bytes
 </pre></div>
 </div>
 <p>Attributes are a useful mechanism to add persistent (meta) information to
@@ -922,7 +927,7 @@ <h3>Reading data from Array objects<a class="headerlink" href="#reading-data-fro
 <span class="gp">&gt;&gt;&gt; </span><span class="n">nameArray</span> <span class="o">=</span> <span class="n">h5file</span><span class="o">.</span><span class="n">root</span><span class="o">.</span><span class="n">columns</span><span class="o">.</span><span class="n">name</span><span class="o">.</span><span class="n">read</span><span class="p">()</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="nb">print</span><span class="p">(</span><span class="s2">&quot;nameArray is an object of type:&quot;</span><span class="p">,</span> <span class="nb">type</span><span class="p">(</span><span class="n">nameArray</span><span class="p">))</span>
 <span class="go">nameArray is an object of type: &lt;type &#39;list&#39;&gt;</span>
-<span class="go">&gt;&gt;&gt;</span>
+<span class="gp">&gt;&gt;&gt;</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="nb">print</span><span class="p">(</span><span class="s2">&quot;Data on arrays nameArray and pressureArray:&quot;</span><span class="p">)</span>
 <span class="go">Data on arrays nameArray and pressureArray:</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">pressureObject</span><span class="o">.</span><span class="n">shape</span><span class="p">[</span><span class="mi">0</span><span class="p">]):</span>
@@ -1307,12 +1312,12 @@ <h3>And finally… how to delete rows from a table<a class="headerlink" href="#a
 <h3>Shape checking<a class="headerlink" href="#shape-checking" title="Permalink to this heading">¶</a></h3>
 <p>If you look at the code carefully, you’ll see that it won’t work. You will
 get the following error.</p>
-<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$ python3 tutorial2.py
-Traceback <span class="o">(</span>most recent call last<span class="o">)</span>:
-  File <span class="s2">&quot;tutorial2.py&quot;</span>, line <span class="m">60</span>, <span class="k">in</span> &lt;module&gt;
-    particle<span class="o">[</span><span class="s1">&#39;pressure&#39;</span><span class="o">]</span> <span class="o">=</span> array<span class="o">(</span>i * arange<span class="o">(</span><span class="m">2</span> * <span class="m">3</span><span class="o">))</span>.reshape<span class="o">((</span><span class="m">2</span>, <span class="m">4</span><span class="o">))</span>  <span class="c1"># Incorrect</span>
-ValueError: total size of new array must be unchanged
-Closing remaining open files: tutorial2.h5... <span class="k">done</span>
+<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$<span class="w"> </span>python3<span class="w"> </span>tutorial2.py
+Traceback<span class="w"> </span><span class="o">(</span>most<span class="w"> </span>recent<span class="w"> </span>call<span class="w"> </span>last<span class="o">)</span>:
+<span class="w">  </span>File<span class="w"> </span><span class="s2">&quot;tutorial2.py&quot;</span>,<span class="w"> </span>line<span class="w"> </span><span class="m">60</span>,<span class="w"> </span><span class="k">in</span><span class="w"> </span>&lt;module&gt;
+<span class="w">    </span>particle<span class="o">[</span><span class="s1">&#39;pressure&#39;</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span>array<span class="o">(</span>i<span class="w"> </span>*<span class="w"> </span>arange<span class="o">(</span><span class="m">2</span><span class="w"> </span>*<span class="w"> </span><span class="m">3</span><span class="o">))</span>.reshape<span class="o">((</span><span class="m">2</span>,<span class="w"> </span><span class="m">4</span><span class="o">))</span><span class="w">  </span><span class="c1"># Incorrect</span>
+ValueError:<span class="w"> </span>total<span class="w"> </span>size<span class="w"> </span>of<span class="w"> </span>new<span class="w"> </span>array<span class="w"> </span>must<span class="w"> </span>be<span class="w"> </span>unchanged
+Closing<span class="w"> </span>remaining<span class="w"> </span>open<span class="w"> </span>files:<span class="w"> </span>tutorial2.h5...<span class="w"> </span><span class="k">done</span>
 </pre></div>
 </div>
 <p>This error indicates that you are trying to assign an array with an
@@ -1334,14 +1339,14 @@ <h3>Shape checking<a class="headerlink" href="#shape-checking" title="Permalink
 <h3>Field name checking<a class="headerlink" href="#field-name-checking" title="Permalink to this heading">¶</a></h3>
 <p>After fixing the previous error and rerunning the program, we encounter
 another error.</p>
-<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$ python3 tutorial2.py
-Traceback <span class="o">(</span>most recent call last<span class="o">)</span>:
-  File <span class="s2">&quot;tutorial2.py&quot;</span>, line <span class="m">73</span>, <span class="k">in</span> ?
-    event<span class="o">[</span><span class="s1">&#39;xcoor&#39;</span><span class="o">]</span> <span class="o">=</span> float<span class="o">(</span>i ** <span class="m">2</span><span class="o">)</span>     <span class="c1"># Wrong spelling</span>
-  File <span class="s2">&quot;tableextension.pyx&quot;</span>, line <span class="m">1094</span>, <span class="k">in</span> tableextension.Row.__setitem__
-  File <span class="s2">&quot;tableextension.pyx&quot;</span>, line <span class="m">127</span>, <span class="k">in</span> tableextension.get_nested_field_cache
-  File <span class="s2">&quot;utilsextension.pyx&quot;</span>, line <span class="m">331</span>, <span class="k">in</span> utilsextension.get_nested_field
-KeyError: <span class="s1">&#39;no such column: xcoor&#39;</span>
+<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$<span class="w"> </span>python3<span class="w"> </span>tutorial2.py
+Traceback<span class="w"> </span><span class="o">(</span>most<span class="w"> </span>recent<span class="w"> </span>call<span class="w"> </span>last<span class="o">)</span>:
+<span class="w">  </span>File<span class="w"> </span><span class="s2">&quot;tutorial2.py&quot;</span>,<span class="w"> </span>line<span class="w"> </span><span class="m">73</span>,<span class="w"> </span><span class="k">in</span><span class="w"> </span>?
+<span class="w">    </span>event<span class="o">[</span><span class="s1">&#39;xcoor&#39;</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span>float<span class="o">(</span>i<span class="w"> </span>**<span class="w"> </span><span class="m">2</span><span class="o">)</span><span class="w">     </span><span class="c1"># Wrong spelling</span>
+<span class="w">  </span>File<span class="w"> </span><span class="s2">&quot;tableextension.pyx&quot;</span>,<span class="w"> </span>line<span class="w"> </span><span class="m">1094</span>,<span class="w"> </span><span class="k">in</span><span class="w"> </span>tableextension.Row.__setitem__
+<span class="w">  </span>File<span class="w"> </span><span class="s2">&quot;tableextension.pyx&quot;</span>,<span class="w"> </span>line<span class="w"> </span><span class="m">127</span>,<span class="w"> </span><span class="k">in</span><span class="w"> </span>tableextension.get_nested_field_cache
+<span class="w">  </span>File<span class="w"> </span><span class="s2">&quot;utilsextension.pyx&quot;</span>,<span class="w"> </span>line<span class="w"> </span><span class="m">331</span>,<span class="w"> </span><span class="k">in</span><span class="w"> </span>utilsextension.get_nested_field
+KeyError:<span class="w"> </span><span class="s1">&#39;no such column: xcoor&#39;</span>
 </pre></div>
 </div>
 <p>This error indicates that we are attempting to assign a value to a
@@ -1356,12 +1361,12 @@ <h3>Field name checking<a class="headerlink" href="#field-name-checking" title="
 <section id="data-type-checking">
 <h3>Data type checking<a class="headerlink" href="#data-type-checking" title="Permalink to this heading">¶</a></h3>
 <p>Finally, the last issue which we will find here is a TypeError exception.</p>
-<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$ python3 tutorial2.py
-Traceback <span class="o">(</span>most recent call last<span class="o">)</span>:
-  File <span class="s2">&quot;tutorial2.py&quot;</span>, line <span class="m">75</span>, <span class="k">in</span> ?
-    event<span class="o">[</span><span class="s1">&#39;ADCcount&#39;</span><span class="o">]</span> <span class="o">=</span> <span class="s2">&quot;sss&quot;</span>          <span class="c1"># Wrong type</span>
-  File <span class="s2">&quot;tableextension.pyx&quot;</span>, line <span class="m">1111</span>, <span class="k">in</span> tableextension.Row.__setitem__
-TypeError: invalid <span class="nb">type</span> <span class="o">(</span>&lt;<span class="nb">type</span> <span class="s1">&#39;str&#39;</span>&gt;<span class="o">)</span> <span class="k">for</span> column <span class="sb">``</span>ADCcount<span class="sb">``</span>
+<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$<span class="w"> </span>python3<span class="w"> </span>tutorial2.py
+Traceback<span class="w"> </span><span class="o">(</span>most<span class="w"> </span>recent<span class="w"> </span>call<span class="w"> </span>last<span class="o">)</span>:
+<span class="w">  </span>File<span class="w"> </span><span class="s2">&quot;tutorial2.py&quot;</span>,<span class="w"> </span>line<span class="w"> </span><span class="m">75</span>,<span class="w"> </span><span class="k">in</span><span class="w"> </span>?
+<span class="w">    </span>event<span class="o">[</span><span class="s1">&#39;ADCcount&#39;</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="s2">&quot;sss&quot;</span><span class="w">          </span><span class="c1"># Wrong type</span>
+<span class="w">  </span>File<span class="w"> </span><span class="s2">&quot;tableextension.pyx&quot;</span>,<span class="w"> </span>line<span class="w"> </span><span class="m">1111</span>,<span class="w"> </span><span class="k">in</span><span class="w"> </span>tableextension.Row.__setitem__
+TypeError:<span class="w"> </span>invalid<span class="w"> </span><span class="nb">type</span><span class="w"> </span><span class="o">(</span>&lt;<span class="nb">type</span><span class="w"> </span><span class="s1">&#39;str&#39;</span>&gt;<span class="o">)</span><span class="w"> </span><span class="k">for</span><span class="w"> </span>column<span class="w"> </span><span class="sb">``</span>ADCcount<span class="sb">``</span>
 </pre></div>
 </div>
 <p>And, if we change the affected line to read:</p>
@@ -1844,9 +1849,9 @@ <h2>Using enumerated types<a class="headerlink" href="#using-enumerated-types" t
 <span class="gt">Traceback (most recent call last):</span>
   File <span class="nb">&quot;&lt;stdin&gt;&quot;</span>, line <span class="m">1</span>, in <span class="n">?</span>
   File <span class="nb">&quot;.../tables/misc/enum.py&quot;</span>, line <span class="m">230</span>, in <span class="n">__getattr__</span>
-    <span class="k">raise</span> <span class="ne">AttributeError</span><span class="p">(</span>\<span class="o">*</span><span class="n">ke</span><span class="o">.</span><span class="n">args</span><span class="p">)</span>
+<span class="w">    </span><span class="k">raise</span> <span class="ne">AttributeError</span><span class="p">(</span>\<span class="o">*</span><span class="n">ke</span><span class="o">.</span><span class="n">args</span><span class="p">)</span>
 <span class="gr">AttributeError</span>: <span class="n">no enumerated value with that name: &#39;yellow&#39;</span>
-<span class="go">&gt;&gt;&gt;</span>
+<span class="gp">&gt;&gt;&gt;</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="nb">print</span><span class="p">(</span><span class="s2">&quot;Value of &#39;red&#39; and &#39;white&#39;:&quot;</span><span class="p">,</span> <span class="p">(</span><span class="n">colors</span><span class="p">[</span><span class="s1">&#39;red&#39;</span><span class="p">],</span> <span class="n">colors</span><span class="p">[</span><span class="s1">&#39;white&#39;</span><span class="p">]))</span>
 <span class="go">Value of &#39;red&#39; and &#39;white&#39;: (0, 3)</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="nb">print</span><span class="p">(</span><span class="s2">&quot;Value of &#39;yellow&#39;:&quot;</span><span class="p">,</span> <span class="n">colors</span><span class="p">[</span><span class="s1">&#39;yellow&#39;</span><span class="p">])</span>
@@ -1854,7 +1859,7 @@ <h2>Using enumerated types<a class="headerlink" href="#using-enumerated-types" t
 <span class="gt">Traceback (most recent call last):</span>
   File <span class="nb">&quot;&lt;stdin&gt;&quot;</span>, line <span class="m">1</span>, in <span class="n">?</span>
   File <span class="nb">&quot;.../tables/misc/enum.py&quot;</span>, line <span class="m">189</span>, in <span class="n">__getitem__</span>
-    <span class="k">raise</span> <span class="ne">KeyError</span><span class="p">(</span><span class="s2">&quot;no enumerated value with that name: </span><span class="si">%r</span><span class="s2">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">name</span><span class="p">,))</span>
+<span class="w">    </span><span class="k">raise</span> <span class="ne">KeyError</span><span class="p">(</span><span class="s2">&quot;no enumerated value with that name: </span><span class="si">%r</span><span class="s2">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">name</span><span class="p">,))</span>
 <span class="gr">KeyError</span>: <span class="n">&quot;no enumerated value with that name: &#39;yellow&#39;&quot;</span>
 </pre></div>
 </div>
@@ -1868,7 +1873,7 @@ <h2>Using enumerated types<a class="headerlink" href="#using-enumerated-types" t
 <span class="gt">Traceback (most recent call last):</span>
   File <span class="nb">&quot;&lt;stdin&gt;&quot;</span>, line <span class="m">1</span>, in <span class="n">?</span>
   File <span class="nb">&quot;.../tables/misc/enum.py&quot;</span>, line <span class="m">320</span>, in <span class="n">__call__</span>
-    <span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span>
+<span class="w">    </span><span class="k">raise</span> <span class="ne">ValueError</span><span class="p">(</span>
 <span class="gr">ValueError</span>: <span class="n">no enumerated value with that concrete value: 1234</span>
 </pre></div>
 </div>
@@ -1887,7 +1892,7 @@ <h3>Enumerated columns<a class="headerlink" href="#enumerated-columns" title="Pe
 <span class="gp">... </span>    <span class="n">ballTime</span> <span class="o">=</span> <span class="n">tables</span><span class="o">.</span><span class="n">Time32Col</span><span class="p">()</span>
 <span class="gp">... </span>    <span class="n">ballColor</span> <span class="o">=</span> <span class="n">tables</span><span class="o">.</span><span class="n">EnumCol</span><span class="p">(</span><span class="n">colors</span><span class="p">,</span> <span class="s1">&#39;black&#39;</span><span class="p">,</span> <span class="n">base</span><span class="o">=</span><span class="s1">&#39;uint8&#39;</span><span class="p">)</span>
 <span class="gp">&gt;&gt;&gt; </span><span class="n">tbl</span> <span class="o">=</span> <span class="n">h5f</span><span class="o">.</span><span class="n">create_table</span><span class="p">(</span><span class="s1">&#39;/&#39;</span><span class="p">,</span> <span class="s1">&#39;extractions&#39;</span><span class="p">,</span> <span class="n">BallExt</span><span class="p">,</span> <span class="n">title</span><span class="o">=</span><span class="s2">&quot;Random ball extractions&quot;</span><span class="p">)</span>
-<span class="go">&gt;&gt;&gt;</span>
+<span class="gp">&gt;&gt;&gt;</span>
 </pre></div>
 </div>
 <p>We declared the ballColor column to be of the enumerated type colors, with a
@@ -1902,7 +1907,7 @@ <h3>Enumerated columns<a class="headerlink" href="#enumerated-columns" title="Pe
 <span class="gp">... </span>    <span class="n">row</span><span class="p">[</span><span class="s1">&#39;ballTime&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">now</span> <span class="o">+</span> <span class="n">i</span>
 <span class="gp">... </span>    <span class="n">row</span><span class="p">[</span><span class="s1">&#39;ballColor&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="n">colors</span><span class="p">[</span><span class="n">random</span><span class="o">.</span><span class="n">choice</span><span class="p">(</span><span class="n">colorList</span><span class="p">)]</span>  <span class="c1"># take note of this</span>
 <span class="gp">... </span>    <span class="n">row</span><span class="o">.</span><span class="n">append</span><span class="p">()</span>
-<span class="go">&gt;&gt;&gt;</span>
+<span class="gp">&gt;&gt;&gt;</span>
 </pre></div>
 </div>
 <p>Notice how we used the __getitem__() call of colors to get the concrete value
@@ -1914,7 +1919,7 @@ <h3>Enumerated columns<a class="headerlink" href="#enumerated-columns" title="Pe
   File <span class="nb">&quot;&lt;stdin&gt;&quot;</span>, line <span class="m">1</span>, in <span class="n">&lt;module&gt;</span>
   File <span class="nb">&quot;tableextension.pyx&quot;</span>, line <span class="m">1086</span>, in <span class="n">tableextension.Row.__setitem__</span>
   File <span class="nb">&quot;.../tables/misc/enum.py&quot;</span>, line <span class="m">320</span>, in <span class="n">__call__</span>
-    <span class="s2">&quot;no enumerated value with that concrete value: </span><span class="si">%r</span><span class="s2">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">value</span><span class="p">,))</span>
+<span class="w">    </span><span class="s2">&quot;no enumerated value with that concrete value: </span><span class="si">%r</span><span class="s2">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">value</span><span class="p">,))</span>
 <span class="gr">ValueError</span>: <span class="n">no enumerated value with that concrete value: 1234</span>
 </pre></div>
 </div>
@@ -1975,13 +1980,13 @@ <h3>Enumerated arrays<a class="headerlink" href="#enumerated-arrays" title="Perm
 enumerated values.</p>
 <p>Finally, we will print contents of the array:</p>
 <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="k">for</span> <span class="p">(</span><span class="n">d1</span><span class="p">,</span> <span class="n">d2</span><span class="p">)</span> <span class="ow">in</span> <span class="n">earr</span><span class="p">:</span>
-<span class="gp">... </span>    <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;From </span><span class="si">{</span><span class="n">wdays</span><span class="p">(</span><span class="n">d1</span><span class="p">)</span> <span class="n">to</span> <span class="p">{</span><span class="n">wdays</span><span class="p">(</span><span class="n">d2</span><span class="p">)</span> <span class="p">({</span><span class="n">d2</span> <span class="o">-</span> <span class="n">d1</span> <span class="o">+</span> <span class="mi">1</span><span class="p">}</span> <span class="n">days</span><span class="p">)</span><span class="o">.</span><span class="s2">&quot;)</span>
+<span class="gp">... </span>    <span class="nb">print</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;From </span><span class="si">{</span><span class="n">wdays</span><span class="p">(</span><span class="n">d1</span><span class="p">)</span><span class="w"> </span><span class="n">to</span><span class="w"> </span><span class="p">{</span><span class="n">wdays</span><span class="p">(</span><span class="n">d2</span><span class="p">)</span><span class="w"> </span><span class="p">({</span><span class="n">d2</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="n">d1</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">}</span><span class="w"> </span><span class="n">days</span><span class="p">)</span><span class="o">.</span><span class="s2">&quot;)</span>
 <span class="go">From Mon to Fri (5 days).</span>
 <span class="go">From Wed to Fri (3 days).</span>
 <span class="gt">Traceback (most recent call last):</span>
   File <span class="nb">&quot;&lt;stdin&gt;&quot;</span>, line <span class="m">2</span>, in <span class="n">&lt;module&gt;</span>
   File <span class="nb">&quot;.../tables/misc/enum.py&quot;</span>, line <span class="m">320</span>, in <span class="n">__call__</span>
-    <span class="s2">&quot;no enumerated value with that concrete value: </span><span class="si">%r</span><span class="s2">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">value</span><span class="p">,))</span>
+<span class="w">    </span><span class="s2">&quot;no enumerated value with that concrete value: </span><span class="si">%r</span><span class="s2">&quot;</span> <span class="o">%</span> <span class="p">(</span><span class="n">value</span><span class="p">,))</span>
 <span class="gr">ValueError</span>: <span class="n">no enumerated value with that concrete value: 1234</span>
 </pre></div>
 </div>
@@ -2007,7 +2012,7 @@ <h2>Nested structures in tables<a class="headerlink" href="#nested-structures-in
 <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="kn">import</span> <span class="nn">tables</span> <span class="k">as</span> <span class="nn">tb</span>
 
 <span class="k">class</span> <span class="nc">Info</span><span class="p">(</span><span class="n">tb</span><span class="o">.</span><span class="n">IsDescription</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;A sub-structure of NestedDescr&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;A sub-structure of NestedDescr&quot;&quot;&quot;</span>
     <span class="n">_v_pos</span> <span class="o">=</span> <span class="mi">2</span>   <span class="c1"># The position in the whole structure</span>
     <span class="n">name</span> <span class="o">=</span> <span class="n">tb</span><span class="o">.</span><span class="n">StringCol</span><span class="p">(</span><span class="mi">10</span><span class="p">)</span>
     <span class="n">value</span> <span class="o">=</span> <span class="n">tb</span><span class="o">.</span><span class="n">Float64Col</span><span class="p">(</span><span class="n">pos</span><span class="o">=</span><span class="mi">0</span><span class="p">)</span>
@@ -2015,7 +2020,7 @@ <h2>Nested structures in tables<a class="headerlink" href="#nested-structures-in
 <span class="n">colors</span> <span class="o">=</span> <span class="n">tb</span><span class="o">.</span><span class="n">Enum</span><span class="p">([</span><span class="s1">&#39;red&#39;</span><span class="p">,</span> <span class="s1">&#39;green&#39;</span><span class="p">,</span> <span class="s1">&#39;blue&#39;</span><span class="p">])</span>
 
 <span class="k">class</span> <span class="nc">NestedDescr</span><span class="p">(</span><span class="n">tb</span><span class="o">.</span><span class="n">IsDescription</span><span class="p">):</span>
-    <span class="sd">&quot;&quot;&quot;A description that has several nested columns&quot;&quot;&quot;</span>
+<span class="w">    </span><span class="sd">&quot;&quot;&quot;A description that has several nested columns&quot;&quot;&quot;</span>
     <span class="n">color</span> <span class="o">=</span> <span class="n">tb</span><span class="o">.</span><span class="n">EnumCol</span><span class="p">(</span><span class="n">colors</span><span class="p">,</span> <span class="s1">&#39;red&#39;</span><span class="p">,</span> <span class="n">base</span><span class="o">=</span><span class="s1">&#39;uint32&#39;</span><span class="p">)</span>
     <span class="n">info1</span> <span class="o">=</span> <span class="n">tb</span><span class="o">.</span><span class="n">Info</span><span class="p">()</span>
 
@@ -2232,28 +2237,28 @@ <h3>Accessing meta-information of nested tables<a class="headerlink" href="#acce
 </pre></div>
 </div>
 <p>Finally, you may want to have a look at your resulting data file.</p>
-<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$ ptdump -d nested-tut.h5
-/ <span class="o">(</span>RootGroup<span class="o">)</span> <span class="s1">&#39;&#39;</span>
-/table <span class="o">(</span>Table<span class="o">(</span><span class="m">13</span>,<span class="o">))</span> <span class="s1">&#39;&#39;</span>
-  Data dump:
-<span class="o">[</span><span class="m">0</span><span class="o">]</span> <span class="o">(((</span><span class="m">1</span>.0, <span class="m">0</span><span class="o">)</span>, <span class="s1">&#39;name2-0&#39;</span>, <span class="m">0</span>.0<span class="o">)</span>, <span class="o">(</span><span class="s1">&#39;name1-0&#39;</span>, <span class="m">0</span>.0<span class="o">)</span>, 0L<span class="o">)</span>
-<span class="o">[</span><span class="m">1</span><span class="o">]</span> <span class="o">(((</span><span class="m">1</span>.0, <span class="m">1</span><span class="o">)</span>, <span class="s1">&#39;name2-1&#39;</span>, <span class="m">0</span>.0<span class="o">)</span>, <span class="o">(</span><span class="s1">&#39;name1-1&#39;</span>, <span class="m">0</span>.0<span class="o">)</span>, 1L<span class="o">)</span>
-<span class="o">[</span><span class="m">2</span><span class="o">]</span> <span class="o">(((</span><span class="m">1</span>.0, <span class="m">2</span><span class="o">)</span>, <span class="s1">&#39;name2-2&#39;</span>, <span class="m">0</span>.0<span class="o">)</span>, <span class="o">(</span><span class="s1">&#39;name1-2&#39;</span>, <span class="m">0</span>.0<span class="o">)</span>, 2L<span class="o">)</span>
-<span class="o">[</span><span class="m">3</span><span class="o">]</span> <span class="o">(((</span><span class="m">1</span>.0, <span class="m">3</span><span class="o">)</span>, <span class="s1">&#39;name2-3&#39;</span>, <span class="m">0</span>.0<span class="o">)</span>, <span class="o">(</span><span class="s1">&#39;name1-3&#39;</span>, <span class="m">0</span>.0<span class="o">)</span>, 0L<span class="o">)</span>
-<span class="o">[</span><span class="m">4</span><span class="o">]</span> <span class="o">(((</span><span class="m">1</span>.0, <span class="m">4</span><span class="o">)</span>, <span class="s1">&#39;name2-4&#39;</span>, <span class="m">0</span>.0<span class="o">)</span>, <span class="o">(</span><span class="s1">&#39;name1-4&#39;</span>, <span class="m">0</span>.0<span class="o">)</span>, 1L<span class="o">)</span>
-<span class="o">[</span><span class="m">5</span><span class="o">]</span> <span class="o">(((</span><span class="m">1</span>.0, <span class="m">5</span><span class="o">)</span>, <span class="s1">&#39;name2-5&#39;</span>, <span class="m">0</span>.0<span class="o">)</span>, <span class="o">(</span><span class="s1">&#39;name1-5&#39;</span>, <span class="m">0</span>.0<span class="o">)</span>, 2L<span class="o">)</span>
-<span class="o">[</span><span class="m">6</span><span class="o">]</span> <span class="o">(((</span><span class="m">1</span>.0, <span class="m">6</span><span class="o">)</span>, <span class="s1">&#39;name2-6&#39;</span>, <span class="m">0</span>.0<span class="o">)</span>, <span class="o">(</span><span class="s1">&#39;name1-6&#39;</span>, <span class="m">0</span>.0<span class="o">)</span>, 0L<span class="o">)</span>
-<span class="o">[</span><span class="m">7</span><span class="o">]</span> <span class="o">(((</span><span class="m">1</span>.0, <span class="m">7</span><span class="o">)</span>, <span class="s1">&#39;name2-7&#39;</span>, <span class="m">0</span>.0<span class="o">)</span>, <span class="o">(</span><span class="s1">&#39;name1-7&#39;</span>, <span class="m">0</span>.0<span class="o">)</span>, 1L<span class="o">)</span>
-<span class="o">[</span><span class="m">8</span><span class="o">]</span> <span class="o">(((</span><span class="m">1</span>.0, <span class="m">8</span><span class="o">)</span>, <span class="s1">&#39;name2-8&#39;</span>, <span class="m">0</span>.0<span class="o">)</span>, <span class="o">(</span><span class="s1">&#39;name1-8&#39;</span>, <span class="m">0</span>.0<span class="o">)</span>, 2L<span class="o">)</span>
-<span class="o">[</span><span class="m">9</span><span class="o">]</span> <span class="o">(((</span><span class="m">1</span>.0, <span class="m">9</span><span class="o">)</span>, <span class="s1">&#39;name2-9&#39;</span>, <span class="m">0</span>.0<span class="o">)</span>, <span class="o">(</span><span class="s1">&#39;name1-9&#39;</span>, <span class="m">0</span>.0<span class="o">)</span>, 0L<span class="o">)</span>
-<span class="o">[</span><span class="m">10</span><span class="o">]</span> <span class="o">(((</span><span class="m">1</span>.0, <span class="m">0</span><span class="o">)</span>, <span class="s1">&#39;name2-0&#39;</span>, <span class="m">0</span>.0<span class="o">)</span>, <span class="o">(</span><span class="s1">&#39;name1-0&#39;</span>, <span class="m">0</span>.0<span class="o">)</span>, 0L<span class="o">)</span>
-<span class="o">[</span><span class="m">11</span><span class="o">]</span> <span class="o">(((</span><span class="m">1</span>.0, <span class="m">4</span><span class="o">)</span>, <span class="s1">&#39;name2-4&#39;</span>, <span class="m">0</span>.0<span class="o">)</span>, <span class="o">(</span><span class="s1">&#39;name1-4&#39;</span>, <span class="m">0</span>.0<span class="o">)</span>, 1L<span class="o">)</span>
-<span class="o">[</span><span class="m">12</span><span class="o">]</span> <span class="o">(((</span><span class="m">1</span>.0, <span class="m">8</span><span class="o">)</span>, <span class="s1">&#39;name2-8&#39;</span>, <span class="m">0</span>.0<span class="o">)</span>, <span class="o">(</span><span class="s1">&#39;name1-8&#39;</span>, <span class="m">0</span>.0<span class="o">)</span>, 2L<span class="o">)</span>
-/table2 <span class="o">(</span>Table<span class="o">(</span><span class="m">3</span>,<span class="o">))</span> <span class="s1">&#39;&#39;</span>
-  Data dump:
-<span class="o">[</span><span class="m">0</span><span class="o">]</span> <span class="o">(((</span><span class="m">1</span>.0, <span class="m">0</span><span class="o">)</span>, <span class="s1">&#39;name2-0&#39;</span>, <span class="m">0</span>.0<span class="o">)</span>, <span class="o">(</span><span class="s1">&#39;name1-0&#39;</span>, <span class="m">0</span>.0<span class="o">)</span>, 0L<span class="o">)</span>
-<span class="o">[</span><span class="m">1</span><span class="o">]</span> <span class="o">(((</span><span class="m">1</span>.0, <span class="m">4</span><span class="o">)</span>, <span class="s1">&#39;name2-4&#39;</span>, <span class="m">0</span>.0<span class="o">)</span>, <span class="o">(</span><span class="s1">&#39;name1-4&#39;</span>, <span class="m">0</span>.0<span class="o">)</span>, 1L<span class="o">)</span>
-<span class="o">[</span><span class="m">2</span><span class="o">]</span> <span class="o">(((</span><span class="m">1</span>.0, <span class="m">8</span><span class="o">)</span>, <span class="s1">&#39;name2-8&#39;</span>, <span class="m">0</span>.0<span class="o">)</span>, <span class="o">(</span><span class="s1">&#39;name1-8&#39;</span>, <span class="m">0</span>.0<span class="o">)</span>, 2L<span class="o">)</span>
+<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$<span class="w"> </span>ptdump<span class="w"> </span>-d<span class="w"> </span>nested-tut.h5
+/<span class="w"> </span><span class="o">(</span>RootGroup<span class="o">)</span><span class="w"> </span><span class="s1">&#39;&#39;</span>
+/table<span class="w"> </span><span class="o">(</span>Table<span class="o">(</span><span class="m">13</span>,<span class="o">))</span><span class="w"> </span><span class="s1">&#39;&#39;</span>
+<span class="w">  </span>Data<span class="w"> </span>dump:
+<span class="o">[</span><span class="m">0</span><span class="o">]</span><span class="w"> </span><span class="o">(((</span><span class="m">1</span>.0,<span class="w"> </span><span class="m">0</span><span class="o">)</span>,<span class="w"> </span><span class="s1">&#39;name2-0&#39;</span>,<span class="w"> </span><span class="m">0</span>.0<span class="o">)</span>,<span class="w"> </span><span class="o">(</span><span class="s1">&#39;name1-0&#39;</span>,<span class="w"> </span><span class="m">0</span>.0<span class="o">)</span>,<span class="w"> </span>0L<span class="o">)</span>
+<span class="o">[</span><span class="m">1</span><span class="o">]</span><span class="w"> </span><span class="o">(((</span><span class="m">1</span>.0,<span class="w"> </span><span class="m">1</span><span class="o">)</span>,<span class="w"> </span><span class="s1">&#39;name2-1&#39;</span>,<span class="w"> </span><span class="m">0</span>.0<span class="o">)</span>,<span class="w"> </span><span class="o">(</span><span class="s1">&#39;name1-1&#39;</span>,<span class="w"> </span><span class="m">0</span>.0<span class="o">)</span>,<span class="w"> </span>1L<span class="o">)</span>
+<span class="o">[</span><span class="m">2</span><span class="o">]</span><span class="w"> </span><span class="o">(((</span><span class="m">1</span>.0,<span class="w"> </span><span class="m">2</span><span class="o">)</span>,<span class="w"> </span><span class="s1">&#39;name2-2&#39;</span>,<span class="w"> </span><span class="m">0</span>.0<span class="o">)</span>,<span class="w"> </span><span class="o">(</span><span class="s1">&#39;name1-2&#39;</span>,<span class="w"> </span><span class="m">0</span>.0<span class="o">)</span>,<span class="w"> </span>2L<span class="o">)</span>
+<span class="o">[</span><span class="m">3</span><span class="o">]</span><span class="w"> </span><span class="o">(((</span><span class="m">1</span>.0,<span class="w"> </span><span class="m">3</span><span class="o">)</span>,<span class="w"> </span><span class="s1">&#39;name2-3&#39;</span>,<span class="w"> </span><span class="m">0</span>.0<span class="o">)</span>,<span class="w"> </span><span class="o">(</span><span class="s1">&#39;name1-3&#39;</span>,<span class="w"> </span><span class="m">0</span>.0<span class="o">)</span>,<span class="w"> </span>0L<span class="o">)</span>
+<span class="o">[</span><span class="m">4</span><span class="o">]</span><span class="w"> </span><span class="o">(((</span><span class="m">1</span>.0,<span class="w"> </span><span class="m">4</span><span class="o">)</span>,<span class="w"> </span><span class="s1">&#39;name2-4&#39;</span>,<span class="w"> </span><span class="m">0</span>.0<span class="o">)</span>,<span class="w"> </span><span class="o">(</span><span class="s1">&#39;name1-4&#39;</span>,<span class="w"> </span><span class="m">0</span>.0<span class="o">)</span>,<span class="w"> </span>1L<span class="o">)</span>
+<span class="o">[</span><span class="m">5</span><span class="o">]</span><span class="w"> </span><span class="o">(((</span><span class="m">1</span>.0,<span class="w"> </span><span class="m">5</span><span class="o">)</span>,<span class="w"> </span><span class="s1">&#39;name2-5&#39;</span>,<span class="w"> </span><span class="m">0</span>.0<span class="o">)</span>,<span class="w"> </span><span class="o">(</span><span class="s1">&#39;name1-5&#39;</span>,<span class="w"> </span><span class="m">0</span>.0<span class="o">)</span>,<span class="w"> </span>2L<span class="o">)</span>
+<span class="o">[</span><span class="m">6</span><span class="o">]</span><span class="w"> </span><span class="o">(((</span><span class="m">1</span>.0,<span class="w"> </span><span class="m">6</span><span class="o">)</span>,<span class="w"> </span><span class="s1">&#39;name2-6&#39;</span>,<span class="w"> </span><span class="m">0</span>.0<span class="o">)</span>,<span class="w"> </span><span class="o">(</span><span class="s1">&#39;name1-6&#39;</span>,<span class="w"> </span><span class="m">0</span>.0<span class="o">)</span>,<span class="w"> </span>0L<span class="o">)</span>
+<span class="o">[</span><span class="m">7</span><span class="o">]</span><span class="w"> </span><span class="o">(((</span><span class="m">1</span>.0,<span class="w"> </span><span class="m">7</span><span class="o">)</span>,<span class="w"> </span><span class="s1">&#39;name2-7&#39;</span>,<span class="w"> </span><span class="m">0</span>.0<span class="o">)</span>,<span class="w"> </span><span class="o">(</span><span class="s1">&#39;name1-7&#39;</span>,<span class="w"> </span><span class="m">0</span>.0<span class="o">)</span>,<span class="w"> </span>1L<span class="o">)</span>
+<span class="o">[</span><span class="m">8</span><span class="o">]</span><span class="w"> </span><span class="o">(((</span><span class="m">1</span>.0,<span class="w"> </span><span class="m">8</span><span class="o">)</span>,<span class="w"> </span><span class="s1">&#39;name2-8&#39;</span>,<span class="w"> </span><span class="m">0</span>.0<span class="o">)</span>,<span class="w"> </span><span class="o">(</span><span class="s1">&#39;name1-8&#39;</span>,<span class="w"> </span><span class="m">0</span>.0<span class="o">)</span>,<span class="w"> </span>2L<span class="o">)</span>
+<span class="o">[</span><span class="m">9</span><span class="o">]</span><span class="w"> </span><span class="o">(((</span><span class="m">1</span>.0,<span class="w"> </span><span class="m">9</span><span class="o">)</span>,<span class="w"> </span><span class="s1">&#39;name2-9&#39;</span>,<span class="w"> </span><span class="m">0</span>.0<span class="o">)</span>,<span class="w"> </span><span class="o">(</span><span class="s1">&#39;name1-9&#39;</span>,<span class="w"> </span><span class="m">0</span>.0<span class="o">)</span>,<span class="w"> </span>0L<span class="o">)</span>
+<span class="o">[</span><span class="m">10</span><span class="o">]</span><span class="w"> </span><span class="o">(((</span><span class="m">1</span>.0,<span class="w"> </span><span class="m">0</span><span class="o">)</span>,<span class="w"> </span><span class="s1">&#39;name2-0&#39;</span>,<span class="w"> </span><span class="m">0</span>.0<span class="o">)</span>,<span class="w"> </span><span class="o">(</span><span class="s1">&#39;name1-0&#39;</span>,<span class="w"> </span><span class="m">0</span>.0<span class="o">)</span>,<span class="w"> </span>0L<span class="o">)</span>
+<span class="o">[</span><span class="m">11</span><span class="o">]</span><span class="w"> </span><span class="o">(((</span><span class="m">1</span>.0,<span class="w"> </span><span class="m">4</span><span class="o">)</span>,<span class="w"> </span><span class="s1">&#39;name2-4&#39;</span>,<span class="w"> </span><span class="m">0</span>.0<span class="o">)</span>,<span class="w"> </span><span class="o">(</span><span class="s1">&#39;name1-4&#39;</span>,<span class="w"> </span><span class="m">0</span>.0<span class="o">)</span>,<span class="w"> </span>1L<span class="o">)</span>
+<span class="o">[</span><span class="m">12</span><span class="o">]</span><span class="w"> </span><span class="o">(((</span><span class="m">1</span>.0,<span class="w"> </span><span class="m">8</span><span class="o">)</span>,<span class="w"> </span><span class="s1">&#39;name2-8&#39;</span>,<span class="w"> </span><span class="m">0</span>.0<span class="o">)</span>,<span class="w"> </span><span class="o">(</span><span class="s1">&#39;name1-8&#39;</span>,<span class="w"> </span><span class="m">0</span>.0<span class="o">)</span>,<span class="w"> </span>2L<span class="o">)</span>
+/table2<span class="w"> </span><span class="o">(</span>Table<span class="o">(</span><span class="m">3</span>,<span class="o">))</span><span class="w"> </span><span class="s1">&#39;&#39;</span>
+<span class="w">  </span>Data<span class="w"> </span>dump:
+<span class="o">[</span><span class="m">0</span><span class="o">]</span><span class="w"> </span><span class="o">(((</span><span class="m">1</span>.0,<span class="w"> </span><span class="m">0</span><span class="o">)</span>,<span class="w"> </span><span class="s1">&#39;name2-0&#39;</span>,<span class="w"> </span><span class="m">0</span>.0<span class="o">)</span>,<span class="w"> </span><span class="o">(</span><span class="s1">&#39;name1-0&#39;</span>,<span class="w"> </span><span class="m">0</span>.0<span class="o">)</span>,<span class="w"> </span>0L<span class="o">)</span>
+<span class="o">[</span><span class="m">1</span><span class="o">]</span><span class="w"> </span><span class="o">(((</span><span class="m">1</span>.0,<span class="w"> </span><span class="m">4</span><span class="o">)</span>,<span class="w"> </span><span class="s1">&#39;name2-4&#39;</span>,<span class="w"> </span><span class="m">0</span>.0<span class="o">)</span>,<span class="w"> </span><span class="o">(</span><span class="s1">&#39;name1-4&#39;</span>,<span class="w"> </span><span class="m">0</span>.0<span class="o">)</span>,<span class="w"> </span>1L<span class="o">)</span>
+<span class="o">[</span><span class="m">2</span><span class="o">]</span><span class="w"> </span><span class="o">(((</span><span class="m">1</span>.0,<span class="w"> </span><span class="m">8</span><span class="o">)</span>,<span class="w"> </span><span class="s1">&#39;name2-8&#39;</span>,<span class="w"> </span><span class="m">0</span>.0<span class="o">)</span>,<span class="w"> </span><span class="o">(</span><span class="s1">&#39;name1-8&#39;</span>,<span class="w"> </span><span class="m">0</span>.0<span class="o">)</span>,<span class="w"> </span>2L<span class="o">)</span>
 </pre></div>
 </div>
 <p>Most of the code in this section is also available in
diff --git a/usersguide/usersguide.html b/usersguide/usersguide.html
index 9dbe2da..213699d 100644
--- a/usersguide/usersguide.html
+++ b/usersguide/usersguide.html
@@ -1,10 +1,10 @@
 <!DOCTYPE html>
 <html class="writer-html5" lang="en" >
 <head>
-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>PyTables User’s Guide &mdash; PyTables 3.9.0 documentation</title>
+  <title>PyTables User’s Guide &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../_static/graphviz.css" type="text/css" />
@@ -17,6 +17,7 @@
         <script src="../_static/underscore.js"></script>
         <script src="../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../_static/doctools.js"></script>
+        <script src="../_static/sphinx_highlight.js"></script>
     <script src="../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../genindex.html" />
     <link rel="search" title="Search" href="../search.html" />
@@ -39,15 +40,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../index.html">
-            <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../index.html">
+            
+              <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -79,8 +84,8 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../index.html" class="icon icon-home"></a> &raquo;</li>
-      <li>PyTables User’s Guide</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+      <li class="breadcrumb-item active">PyTables User’s Guide</li>
       <li class="wy-breadcrumbs-aside">
             <a href="../_sources/usersguide/usersguide.rst.txt" rel="nofollow"> View page source</a>
       </li>
@@ -104,10 +109,10 @@ <h1>PyTables User’s Guide<a class="headerlink" href="#pytables-user-s-guide" t
 <p>© 2011–2023 - PyTables maintainers</p>
 </dd>
 <dt class="field-odd">Date<span class="colon">:</span></dt>
-<dd class="field-odd"><p>Oct 05, 2023</p>
+<dd class="field-odd"><p>Oct 06, 2023</p>
 </dd>
 <dt class="field-even">Version<span class="colon">:</span></dt>
-<dd class="field-even"><p>3.9.0</p>
+<dd class="field-even"><p>3.9.1</p>
 </dd>
 <dt class="field-odd">Home Page<span class="colon">:</span></dt>
 <dd class="field-odd"><p><a class="reference external" href="http://www.pytables.org">http://www.pytables.org</a></p>
diff --git a/usersguide/utilities.html b/usersguide/utilities.html
index 4e3526f..abe4b42 100644
--- a/usersguide/utilities.html
+++ b/usersguide/utilities.html
@@ -1,10 +1,10 @@
 <!DOCTYPE html>
 <html class="writer-html5" lang="en" >
 <head>
-  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.19: https://docutils.sourceforge.io/" />
+  <meta charset="utf-8" /><meta name="generator" content="Docutils 0.18.1: http://docutils.sourceforge.net/" />
 
   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <title>Utilities &mdash; PyTables 3.9.0 documentation</title>
+  <title>Utilities &mdash; PyTables 3.9.1 documentation</title>
       <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
       <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
       <link rel="stylesheet" href="../_static/graphviz.css" type="text/css" />
@@ -17,6 +17,7 @@
         <script src="../_static/underscore.js"></script>
         <script src="../_static/_sphinx_javascript_frameworks_compat.js"></script>
         <script src="../_static/doctools.js"></script>
+        <script src="../_static/sphinx_highlight.js"></script>
     <script src="../_static/js/theme.js"></script>
     <link rel="index" title="Index" href="../genindex.html" />
     <link rel="search" title="Search" href="../search.html" />
@@ -41,15 +42,19 @@
     <nav data-toggle="wy-nav-shift" class="wy-nav-side">
       <div class="wy-side-scroll">
         <div class="wy-side-nav-search" >
-            <a href="../index.html">
-            <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
+
+          
+          
+          <a href="../index.html">
+            
+              <img src="../_static/logo-pytables-small.png" class="logo" alt="Logo"/>
           </a>
               <div class="version">
-                3.9.0
+                3.9.1
               </div>
 <div role="search">
   <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
-    <input type="text" name="q" placeholder="Search docs" />
+    <input type="text" name="q" placeholder="Search docs" aria-label="Search docs" />
     <input type="hidden" name="check_keywords" value="yes" />
     <input type="hidden" name="area" value="default" />
   </form>
@@ -81,9 +86,9 @@
         <div class="rst-content">
           <div role="navigation" aria-label="Page navigation">
   <ul class="wy-breadcrumbs">
-      <li><a href="../index.html" class="icon icon-home"></a> &raquo;</li>
-          <li><a href="index.html">PyTables User’s Guide</a> &raquo;</li>
-      <li>Utilities</li>
+      <li><a href="../index.html" class="icon icon-home" aria-label="Home"></a></li>
+          <li class="breadcrumb-item"><a href="index.html">PyTables User’s Guide</a></li>
+      <li class="breadcrumb-item active">Utilities</li>
       <li class="wy-breadcrumbs-aside">
             <a href="../_sources/usersguide/utilities.rst.txt" rel="nofollow"> View page source</a>
       </li>
@@ -114,35 +119,35 @@ <h2>ptdump<a class="headerlink" href="#ptdump" title="Permalink to this heading"
 <section id="usage">
 <h3>Usage<a class="headerlink" href="#usage" title="Permalink to this heading">¶</a></h3>
 <p>For instructions on how to use it, just pass the -h flag to the command:</p>
-<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$ ptdump -h
+<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$<span class="w"> </span>ptdump<span class="w"> </span>-h
 </pre></div>
 </div>
 <p>to see the message usage:</p>
-<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>usage: ptdump <span class="o">[</span>-h<span class="o">]</span> <span class="o">[</span>-v<span class="o">]</span> <span class="o">[</span>-d<span class="o">]</span> <span class="o">[</span>-a<span class="o">]</span> <span class="o">[</span>-s<span class="o">]</span> <span class="o">[</span>-c<span class="o">]</span> <span class="o">[</span>-i<span class="o">]</span> <span class="o">[</span>-R RANGE<span class="o">]</span>
-              filename<span class="o">[</span>:nodepath<span class="o">]</span>
+<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>usage:<span class="w"> </span>ptdump<span class="w"> </span><span class="o">[</span>-h<span class="o">]</span><span class="w"> </span><span class="o">[</span>-v<span class="o">]</span><span class="w"> </span><span class="o">[</span>-d<span class="o">]</span><span class="w"> </span><span class="o">[</span>-a<span class="o">]</span><span class="w"> </span><span class="o">[</span>-s<span class="o">]</span><span class="w"> </span><span class="o">[</span>-c<span class="o">]</span><span class="w"> </span><span class="o">[</span>-i<span class="o">]</span><span class="w"> </span><span class="o">[</span>-R<span class="w"> </span>RANGE<span class="o">]</span>
+<span class="w">              </span>filename<span class="o">[</span>:nodepath<span class="o">]</span>
 
-The ptdump utility allows you look into the contents of your PyTables files.
-It lets you see not only the data but also the metadata <span class="o">(</span>that is, the
-*structure* and additional information <span class="k">in</span> the form of *attributes*<span class="o">)</span>.
+The<span class="w"> </span>ptdump<span class="w"> </span>utility<span class="w"> </span>allows<span class="w"> </span>you<span class="w"> </span>look<span class="w"> </span>into<span class="w"> </span>the<span class="w"> </span>contents<span class="w"> </span>of<span class="w"> </span>your<span class="w"> </span>PyTables<span class="w"> </span>files.
+It<span class="w"> </span>lets<span class="w"> </span>you<span class="w"> </span>see<span class="w"> </span>not<span class="w"> </span>only<span class="w"> </span>the<span class="w"> </span>data<span class="w"> </span>but<span class="w"> </span>also<span class="w"> </span>the<span class="w"> </span>metadata<span class="w"> </span><span class="o">(</span>that<span class="w"> </span>is,<span class="w"> </span>the
+*structure*<span class="w"> </span>and<span class="w"> </span>additional<span class="w"> </span>information<span class="w"> </span><span class="k">in</span><span class="w"> </span>the<span class="w"> </span>form<span class="w"> </span>of<span class="w"> </span>*attributes*<span class="o">)</span>.
 
-positional arguments:
-  filename<span class="o">[</span>:nodepath<span class="o">]</span>   name of the HDF5 file to dump
+positional<span class="w"> </span>arguments:
+<span class="w">  </span>filename<span class="o">[</span>:nodepath<span class="o">]</span><span class="w">   </span>name<span class="w"> </span>of<span class="w"> </span>the<span class="w"> </span>HDF5<span class="w"> </span>file<span class="w"> </span>to<span class="w"> </span>dump
 
-optional arguments:
-  -h, --help            show this <span class="nb">help</span> message and <span class="nb">exit</span>
-  -v, --verbose         dump more metainformation on nodes
-  -d, --dump            dump data information on leaves
-  -a, --showattrs       show attributes <span class="k">in</span> nodes <span class="o">(</span>only useful when -v or -d
-                        are active<span class="o">)</span>
-  -s, --sort            sort output by node name
-  -c, --colinfo         show info of columns <span class="k">in</span> tables <span class="o">(</span>only useful when -v or
-                        -d are active<span class="o">)</span>
-  -i, --idxinfo         show info of indexed columns <span class="o">(</span>only useful when -v or
-                        -d are active<span class="o">)</span>
-  -R RANGE, --range RANGE
-                        <span class="k">select</span> a RANGE of rows <span class="o">(</span><span class="k">in</span> the form <span class="s2">&quot;start,stop,step&quot;</span><span class="o">)</span>
-                        during the copy of *all* the leaves. Default values
-                        are <span class="s2">&quot;None,None,1&quot;</span>, which means a copy of all the rows.
+optional<span class="w"> </span>arguments:
+<span class="w">  </span>-h,<span class="w"> </span>--help<span class="w">            </span>show<span class="w"> </span>this<span class="w"> </span><span class="nb">help</span><span class="w"> </span>message<span class="w"> </span>and<span class="w"> </span><span class="nb">exit</span>
+<span class="w">  </span>-v,<span class="w"> </span>--verbose<span class="w">         </span>dump<span class="w"> </span>more<span class="w"> </span>metainformation<span class="w"> </span>on<span class="w"> </span>nodes
+<span class="w">  </span>-d,<span class="w"> </span>--dump<span class="w">            </span>dump<span class="w"> </span>data<span class="w"> </span>information<span class="w"> </span>on<span class="w"> </span>leaves
+<span class="w">  </span>-a,<span class="w"> </span>--showattrs<span class="w">       </span>show<span class="w"> </span>attributes<span class="w"> </span><span class="k">in</span><span class="w"> </span>nodes<span class="w"> </span><span class="o">(</span>only<span class="w"> </span>useful<span class="w"> </span>when<span class="w"> </span>-v<span class="w"> </span>or<span class="w"> </span>-d
+<span class="w">                        </span>are<span class="w"> </span>active<span class="o">)</span>
+<span class="w">  </span>-s,<span class="w"> </span>--sort<span class="w">            </span>sort<span class="w"> </span>output<span class="w"> </span>by<span class="w"> </span>node<span class="w"> </span>name
+<span class="w">  </span>-c,<span class="w"> </span>--colinfo<span class="w">         </span>show<span class="w"> </span>info<span class="w"> </span>of<span class="w"> </span>columns<span class="w"> </span><span class="k">in</span><span class="w"> </span>tables<span class="w"> </span><span class="o">(</span>only<span class="w"> </span>useful<span class="w"> </span>when<span class="w"> </span>-v<span class="w"> </span>or
+<span class="w">                        </span>-d<span class="w"> </span>are<span class="w"> </span>active<span class="o">)</span>
+<span class="w">  </span>-i,<span class="w"> </span>--idxinfo<span class="w">         </span>show<span class="w"> </span>info<span class="w"> </span>of<span class="w"> </span>indexed<span class="w"> </span>columns<span class="w"> </span><span class="o">(</span>only<span class="w"> </span>useful<span class="w"> </span>when<span class="w"> </span>-v<span class="w"> </span>or
+<span class="w">                        </span>-d<span class="w"> </span>are<span class="w"> </span>active<span class="o">)</span>
+<span class="w">  </span>-R<span class="w"> </span>RANGE,<span class="w"> </span>--range<span class="w"> </span>RANGE
+<span class="w">                        </span><span class="k">select</span><span class="w"> </span>a<span class="w"> </span>RANGE<span class="w"> </span>of<span class="w"> </span>rows<span class="w"> </span><span class="o">(</span><span class="k">in</span><span class="w"> </span>the<span class="w"> </span>form<span class="w"> </span><span class="s2">&quot;start,stop,step&quot;</span><span class="o">)</span>
+<span class="w">                        </span>during<span class="w"> </span>the<span class="w"> </span>copy<span class="w"> </span>of<span class="w"> </span>*all*<span class="w"> </span>the<span class="w"> </span>leaves.<span class="w"> </span>Default<span class="w"> </span>values
+<span class="w">                        </span>are<span class="w"> </span><span class="s2">&quot;None,None,1&quot;</span>,<span class="w"> </span>which<span class="w"> </span>means<span class="w"> </span>a<span class="w"> </span>copy<span class="w"> </span>of<span class="w"> </span>all<span class="w"> </span>the<span class="w"> </span>rows.
 </pre></div>
 </div>
 <p>Read on for a brief introduction to this utility.</p>
@@ -151,28 +156,28 @@ <h3>Usage<a class="headerlink" href="#usage" title="Permalink to this heading">
 <h3>A small tutorial on ptdump<a class="headerlink" href="#a-small-tutorial-on-ptdump" title="Permalink to this heading">¶</a></h3>
 <p>Let’s suppose that we want to know only the <em>structure</em> of a file. In order
 to do that, just don’t pass any flag, just the file as parameter.</p>
-<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$ ptdump vlarray1.h5
-/ <span class="o">(</span>RootGroup<span class="o">)</span> <span class="s1">&#39;&#39;</span>
-/vlarray1 <span class="o">(</span>VLArray<span class="o">(</span><span class="m">3</span>,<span class="o">)</span>, shuffle, zlib<span class="o">(</span><span class="m">1</span><span class="o">))</span> <span class="s1">&#39;ragged array of ints&#39;</span>
-/vlarray2 <span class="o">(</span>VLArray<span class="o">(</span><span class="m">3</span>,<span class="o">)</span>, shuffle, zlib<span class="o">(</span><span class="m">1</span><span class="o">))</span> <span class="s1">&#39;ragged array of strings&#39;</span>
+<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$<span class="w"> </span>ptdump<span class="w"> </span>vlarray1.h5
+/<span class="w"> </span><span class="o">(</span>RootGroup<span class="o">)</span><span class="w"> </span><span class="s1">&#39;&#39;</span>
+/vlarray1<span class="w"> </span><span class="o">(</span>VLArray<span class="o">(</span><span class="m">3</span>,<span class="o">)</span>,<span class="w"> </span>shuffle,<span class="w"> </span>zlib<span class="o">(</span><span class="m">1</span><span class="o">))</span><span class="w"> </span><span class="s1">&#39;ragged array of ints&#39;</span>
+/vlarray2<span class="w"> </span><span class="o">(</span>VLArray<span class="o">(</span><span class="m">3</span>,<span class="o">)</span>,<span class="w"> </span>shuffle,<span class="w"> </span>zlib<span class="o">(</span><span class="m">1</span><span class="o">))</span><span class="w"> </span><span class="s1">&#39;ragged array of strings&#39;</span>
 </pre></div>
 </div>
 <p>we can see that the file contains just a leaf object called vlarray1, that is
 an instance of VLArray, has 4 rows, and two filters has been used in order to
 create it: shuffle and zlib (with a compression level of 1).</p>
 <p>Let’s say we want more meta-information. Just add the -v (verbose) flag:</p>
-<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$ ptdump -v vlarray1.h5
-/ <span class="o">(</span>RootGroup<span class="o">)</span> <span class="s1">&#39;&#39;</span>
-/vlarray1 <span class="o">(</span>VLArray<span class="o">(</span><span class="m">3</span>,<span class="o">)</span>, shuffle, zlib<span class="o">(</span><span class="m">1</span><span class="o">))</span> <span class="s1">&#39;ragged array of ints&#39;</span>
-  <span class="nv">atom</span> <span class="o">=</span> Int32Atom<span class="o">(</span><span class="nv">shape</span><span class="o">=()</span>, <span class="nv">dflt</span><span class="o">=</span><span class="m">0</span><span class="o">)</span>
-  <span class="nv">byteorder</span> <span class="o">=</span> <span class="s1">&#39;little&#39;</span>
-  <span class="nv">nrows</span> <span class="o">=</span> <span class="m">3</span>
-  <span class="nv">flavor</span> <span class="o">=</span> <span class="s1">&#39;numpy&#39;</span>
-/vlarray2 <span class="o">(</span>VLArray<span class="o">(</span><span class="m">3</span>,<span class="o">)</span>, shuffle, zlib<span class="o">(</span><span class="m">1</span><span class="o">))</span> <span class="s1">&#39;ragged array of strings&#39;</span>
-  <span class="nv">atom</span> <span class="o">=</span> StringAtom<span class="o">(</span><span class="nv">itemsize</span><span class="o">=</span><span class="m">2</span>, <span class="nv">shape</span><span class="o">=()</span>, <span class="nv">dflt</span><span class="o">=</span><span class="s1">&#39;&#39;</span><span class="o">)</span>
-  <span class="nv">byteorder</span> <span class="o">=</span> <span class="s1">&#39;irrelevant&#39;</span>
-  <span class="nv">nrows</span> <span class="o">=</span> <span class="m">3</span>
-  <span class="nv">flavor</span> <span class="o">=</span> <span class="s1">&#39;python&#39;</span>
+<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$<span class="w"> </span>ptdump<span class="w"> </span>-v<span class="w"> </span>vlarray1.h5
+/<span class="w"> </span><span class="o">(</span>RootGroup<span class="o">)</span><span class="w"> </span><span class="s1">&#39;&#39;</span>
+/vlarray1<span class="w"> </span><span class="o">(</span>VLArray<span class="o">(</span><span class="m">3</span>,<span class="o">)</span>,<span class="w"> </span>shuffle,<span class="w"> </span>zlib<span class="o">(</span><span class="m">1</span><span class="o">))</span><span class="w"> </span><span class="s1">&#39;ragged array of ints&#39;</span>
+<span class="w">  </span><span class="nv">atom</span><span class="w"> </span><span class="o">=</span><span class="w"> </span>Int32Atom<span class="o">(</span><span class="nv">shape</span><span class="o">=()</span>,<span class="w"> </span><span class="nv">dflt</span><span class="o">=</span><span class="m">0</span><span class="o">)</span>
+<span class="w">  </span><span class="nv">byteorder</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="s1">&#39;little&#39;</span>
+<span class="w">  </span><span class="nv">nrows</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">3</span>
+<span class="w">  </span><span class="nv">flavor</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="s1">&#39;numpy&#39;</span>
+/vlarray2<span class="w"> </span><span class="o">(</span>VLArray<span class="o">(</span><span class="m">3</span>,<span class="o">)</span>,<span class="w"> </span>shuffle,<span class="w"> </span>zlib<span class="o">(</span><span class="m">1</span><span class="o">))</span><span class="w"> </span><span class="s1">&#39;ragged array of strings&#39;</span>
+<span class="w">  </span><span class="nv">atom</span><span class="w"> </span><span class="o">=</span><span class="w"> </span>StringAtom<span class="o">(</span><span class="nv">itemsize</span><span class="o">=</span><span class="m">2</span>,<span class="w"> </span><span class="nv">shape</span><span class="o">=()</span>,<span class="w"> </span><span class="nv">dflt</span><span class="o">=</span><span class="s1">&#39;&#39;</span><span class="o">)</span>
+<span class="w">  </span><span class="nv">byteorder</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="s1">&#39;irrelevant&#39;</span>
+<span class="w">  </span><span class="nv">nrows</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">3</span>
+<span class="w">  </span><span class="nv">flavor</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="s1">&#39;python&#39;</span>
 </pre></div>
 </div>
 <p>so we can see more info about the atoms that are the components of the
@@ -180,47 +185,47 @@ <h3>A small tutorial on ptdump<a class="headerlink" href="#a-small-tutorial-on-p
 <em>flavor</em>.</p>
 <p>If we want information about the attributes on the nodes, we must add the -a
 flag:</p>
-<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$ ptdump -va vlarray1.h5
-/ <span class="o">(</span>RootGroup<span class="o">)</span> <span class="s1">&#39;&#39;</span>
-  /._v_attrs <span class="o">(</span>AttributeSet<span class="o">)</span>, <span class="m">4</span> attributes:
-   <span class="o">[</span>CLASS :<span class="o">=</span> <span class="s1">&#39;GROUP&#39;</span>,
-    PYTABLES_FORMAT_VERSION :<span class="o">=</span> <span class="s1">&#39;2.0&#39;</span>,
-    TITLE :<span class="o">=</span> <span class="s1">&#39;&#39;</span>,
-    VERSION :<span class="o">=</span> <span class="s1">&#39;1.0&#39;</span><span class="o">]</span>
-/vlarray1 <span class="o">(</span>VLArray<span class="o">(</span><span class="m">3</span>,<span class="o">)</span>, shuffle, zlib<span class="o">(</span><span class="m">1</span><span class="o">))</span> <span class="s1">&#39;ragged array of ints&#39;</span>
-  <span class="nv">atom</span> <span class="o">=</span> Int32Atom<span class="o">(</span><span class="nv">shape</span><span class="o">=()</span>, <span class="nv">dflt</span><span class="o">=</span><span class="m">0</span><span class="o">)</span>
-  <span class="nv">byteorder</span> <span class="o">=</span> <span class="s1">&#39;little&#39;</span>
-  <span class="nv">nrows</span> <span class="o">=</span> <span class="m">3</span>
-  <span class="nv">flavor</span> <span class="o">=</span> <span class="s1">&#39;numpy&#39;</span>
-  /vlarray1._v_attrs <span class="o">(</span>AttributeSet<span class="o">)</span>, <span class="m">3</span> attributes:
-   <span class="o">[</span>CLASS :<span class="o">=</span> <span class="s1">&#39;VLARRAY&#39;</span>,
-    TITLE :<span class="o">=</span> <span class="s1">&#39;ragged array of ints&#39;</span>,
-    VERSION :<span class="o">=</span> <span class="s1">&#39;1.3&#39;</span><span class="o">]</span>
-/vlarray2 <span class="o">(</span>VLArray<span class="o">(</span><span class="m">3</span>,<span class="o">)</span>, shuffle, zlib<span class="o">(</span><span class="m">1</span><span class="o">))</span> <span class="s1">&#39;ragged array of strings&#39;</span>
-  <span class="nv">atom</span> <span class="o">=</span> StringAtom<span class="o">(</span><span class="nv">itemsize</span><span class="o">=</span><span class="m">2</span>, <span class="nv">shape</span><span class="o">=()</span>, <span class="nv">dflt</span><span class="o">=</span><span class="s1">&#39;&#39;</span><span class="o">)</span>
-  <span class="nv">byteorder</span> <span class="o">=</span> <span class="s1">&#39;irrelevant&#39;</span>
-  <span class="nv">nrows</span> <span class="o">=</span> <span class="m">3</span>
-  <span class="nv">flavor</span> <span class="o">=</span> <span class="s1">&#39;python&#39;</span>
-  /vlarray2._v_attrs <span class="o">(</span>AttributeSet<span class="o">)</span>, <span class="m">4</span> attributes:
-   <span class="o">[</span>CLASS :<span class="o">=</span> <span class="s1">&#39;VLARRAY&#39;</span>,
-    FLAVOR :<span class="o">=</span> <span class="s1">&#39;python&#39;</span>,
-    TITLE :<span class="o">=</span> <span class="s1">&#39;ragged array of strings&#39;</span>,
-    VERSION :<span class="o">=</span> <span class="s1">&#39;1.3&#39;</span><span class="o">]</span>
+<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$<span class="w"> </span>ptdump<span class="w"> </span>-va<span class="w"> </span>vlarray1.h5
+/<span class="w"> </span><span class="o">(</span>RootGroup<span class="o">)</span><span class="w"> </span><span class="s1">&#39;&#39;</span>
+<span class="w">  </span>/._v_attrs<span class="w"> </span><span class="o">(</span>AttributeSet<span class="o">)</span>,<span class="w"> </span><span class="m">4</span><span class="w"> </span>attributes:
+<span class="w">   </span><span class="o">[</span>CLASS<span class="w"> </span>:<span class="o">=</span><span class="w"> </span><span class="s1">&#39;GROUP&#39;</span>,
+<span class="w">    </span>PYTABLES_FORMAT_VERSION<span class="w"> </span>:<span class="o">=</span><span class="w"> </span><span class="s1">&#39;2.0&#39;</span>,
+<span class="w">    </span>TITLE<span class="w"> </span>:<span class="o">=</span><span class="w"> </span><span class="s1">&#39;&#39;</span>,
+<span class="w">    </span>VERSION<span class="w"> </span>:<span class="o">=</span><span class="w"> </span><span class="s1">&#39;1.0&#39;</span><span class="o">]</span>
+/vlarray1<span class="w"> </span><span class="o">(</span>VLArray<span class="o">(</span><span class="m">3</span>,<span class="o">)</span>,<span class="w"> </span>shuffle,<span class="w"> </span>zlib<span class="o">(</span><span class="m">1</span><span class="o">))</span><span class="w"> </span><span class="s1">&#39;ragged array of ints&#39;</span>
+<span class="w">  </span><span class="nv">atom</span><span class="w"> </span><span class="o">=</span><span class="w"> </span>Int32Atom<span class="o">(</span><span class="nv">shape</span><span class="o">=()</span>,<span class="w"> </span><span class="nv">dflt</span><span class="o">=</span><span class="m">0</span><span class="o">)</span>
+<span class="w">  </span><span class="nv">byteorder</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="s1">&#39;little&#39;</span>
+<span class="w">  </span><span class="nv">nrows</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">3</span>
+<span class="w">  </span><span class="nv">flavor</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="s1">&#39;numpy&#39;</span>
+<span class="w">  </span>/vlarray1._v_attrs<span class="w"> </span><span class="o">(</span>AttributeSet<span class="o">)</span>,<span class="w"> </span><span class="m">3</span><span class="w"> </span>attributes:
+<span class="w">   </span><span class="o">[</span>CLASS<span class="w"> </span>:<span class="o">=</span><span class="w"> </span><span class="s1">&#39;VLARRAY&#39;</span>,
+<span class="w">    </span>TITLE<span class="w"> </span>:<span class="o">=</span><span class="w"> </span><span class="s1">&#39;ragged array of ints&#39;</span>,
+<span class="w">    </span>VERSION<span class="w"> </span>:<span class="o">=</span><span class="w"> </span><span class="s1">&#39;1.3&#39;</span><span class="o">]</span>
+/vlarray2<span class="w"> </span><span class="o">(</span>VLArray<span class="o">(</span><span class="m">3</span>,<span class="o">)</span>,<span class="w"> </span>shuffle,<span class="w"> </span>zlib<span class="o">(</span><span class="m">1</span><span class="o">))</span><span class="w"> </span><span class="s1">&#39;ragged array of strings&#39;</span>
+<span class="w">  </span><span class="nv">atom</span><span class="w"> </span><span class="o">=</span><span class="w"> </span>StringAtom<span class="o">(</span><span class="nv">itemsize</span><span class="o">=</span><span class="m">2</span>,<span class="w"> </span><span class="nv">shape</span><span class="o">=()</span>,<span class="w"> </span><span class="nv">dflt</span><span class="o">=</span><span class="s1">&#39;&#39;</span><span class="o">)</span>
+<span class="w">  </span><span class="nv">byteorder</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="s1">&#39;irrelevant&#39;</span>
+<span class="w">  </span><span class="nv">nrows</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">3</span>
+<span class="w">  </span><span class="nv">flavor</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="s1">&#39;python&#39;</span>
+<span class="w">  </span>/vlarray2._v_attrs<span class="w"> </span><span class="o">(</span>AttributeSet<span class="o">)</span>,<span class="w"> </span><span class="m">4</span><span class="w"> </span>attributes:
+<span class="w">   </span><span class="o">[</span>CLASS<span class="w"> </span>:<span class="o">=</span><span class="w"> </span><span class="s1">&#39;VLARRAY&#39;</span>,
+<span class="w">    </span>FLAVOR<span class="w"> </span>:<span class="o">=</span><span class="w"> </span><span class="s1">&#39;python&#39;</span>,
+<span class="w">    </span>TITLE<span class="w"> </span>:<span class="o">=</span><span class="w"> </span><span class="s1">&#39;ragged array of strings&#39;</span>,
+<span class="w">    </span>VERSION<span class="w"> </span>:<span class="o">=</span><span class="w"> </span><span class="s1">&#39;1.3&#39;</span><span class="o">]</span>
 </pre></div>
 </div>
 <p>Let’s have a look at the real data:</p>
-<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$ ptdump -d vlarray1.h5
-/ <span class="o">(</span>RootGroup<span class="o">)</span> <span class="s1">&#39;&#39;</span>
-/vlarray1 <span class="o">(</span>VLArray<span class="o">(</span><span class="m">3</span>,<span class="o">)</span>, shuffle, zlib<span class="o">(</span><span class="m">1</span><span class="o">))</span> <span class="s1">&#39;ragged array of ints&#39;</span>
-  Data dump:
-<span class="o">[</span><span class="m">0</span><span class="o">]</span> <span class="o">[</span><span class="m">5</span> <span class="m">6</span><span class="o">]</span>
-<span class="o">[</span><span class="m">1</span><span class="o">]</span> <span class="o">[</span><span class="m">5</span> <span class="m">6</span> <span class="m">7</span><span class="o">]</span>
-<span class="o">[</span><span class="m">2</span><span class="o">]</span> <span class="o">[</span><span class="m">5</span> <span class="m">6</span> <span class="m">9</span> <span class="m">8</span><span class="o">]</span>
-/vlarray2 <span class="o">(</span>VLArray<span class="o">(</span><span class="m">3</span>,<span class="o">)</span>, shuffle, zlib<span class="o">(</span><span class="m">1</span><span class="o">))</span> <span class="s1">&#39;ragged array of strings&#39;</span>
-  Data dump:
-<span class="o">[</span><span class="m">0</span><span class="o">]</span> <span class="o">[</span><span class="s1">&#39;5&#39;</span>, <span class="s1">&#39;66&#39;</span><span class="o">]</span>
-<span class="o">[</span><span class="m">1</span><span class="o">]</span> <span class="o">[</span><span class="s1">&#39;5&#39;</span>, <span class="s1">&#39;6&#39;</span>, <span class="s1">&#39;77&#39;</span><span class="o">]</span>
-<span class="o">[</span><span class="m">2</span><span class="o">]</span> <span class="o">[</span><span class="s1">&#39;5&#39;</span>, <span class="s1">&#39;6&#39;</span>, <span class="s1">&#39;9&#39;</span>, <span class="s1">&#39;88&#39;</span><span class="o">]</span>
+<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$<span class="w"> </span>ptdump<span class="w"> </span>-d<span class="w"> </span>vlarray1.h5
+/<span class="w"> </span><span class="o">(</span>RootGroup<span class="o">)</span><span class="w"> </span><span class="s1">&#39;&#39;</span>
+/vlarray1<span class="w"> </span><span class="o">(</span>VLArray<span class="o">(</span><span class="m">3</span>,<span class="o">)</span>,<span class="w"> </span>shuffle,<span class="w"> </span>zlib<span class="o">(</span><span class="m">1</span><span class="o">))</span><span class="w"> </span><span class="s1">&#39;ragged array of ints&#39;</span>
+<span class="w">  </span>Data<span class="w"> </span>dump:
+<span class="o">[</span><span class="m">0</span><span class="o">]</span><span class="w"> </span><span class="o">[</span><span class="m">5</span><span class="w"> </span><span class="m">6</span><span class="o">]</span>
+<span class="o">[</span><span class="m">1</span><span class="o">]</span><span class="w"> </span><span class="o">[</span><span class="m">5</span><span class="w"> </span><span class="m">6</span><span class="w"> </span><span class="m">7</span><span class="o">]</span>
+<span class="o">[</span><span class="m">2</span><span class="o">]</span><span class="w"> </span><span class="o">[</span><span class="m">5</span><span class="w"> </span><span class="m">6</span><span class="w"> </span><span class="m">9</span><span class="w"> </span><span class="m">8</span><span class="o">]</span>
+/vlarray2<span class="w"> </span><span class="o">(</span>VLArray<span class="o">(</span><span class="m">3</span>,<span class="o">)</span>,<span class="w"> </span>shuffle,<span class="w"> </span>zlib<span class="o">(</span><span class="m">1</span><span class="o">))</span><span class="w"> </span><span class="s1">&#39;ragged array of strings&#39;</span>
+<span class="w">  </span>Data<span class="w"> </span>dump:
+<span class="o">[</span><span class="m">0</span><span class="o">]</span><span class="w"> </span><span class="o">[</span><span class="s1">&#39;5&#39;</span>,<span class="w"> </span><span class="s1">&#39;66&#39;</span><span class="o">]</span>
+<span class="o">[</span><span class="m">1</span><span class="o">]</span><span class="w"> </span><span class="o">[</span><span class="s1">&#39;5&#39;</span>,<span class="w"> </span><span class="s1">&#39;6&#39;</span>,<span class="w"> </span><span class="s1">&#39;77&#39;</span><span class="o">]</span>
+<span class="o">[</span><span class="m">2</span><span class="o">]</span><span class="w"> </span><span class="o">[</span><span class="s1">&#39;5&#39;</span>,<span class="w"> </span><span class="s1">&#39;6&#39;</span>,<span class="w"> </span><span class="s1">&#39;9&#39;</span>,<span class="w"> </span><span class="s1">&#39;88&#39;</span><span class="o">]</span>
 </pre></div>
 </div>
 <p>We see here a data dump of the 4 rows in vlarray1 object, in the form of a
@@ -228,28 +233,28 @@ <h3>A small tutorial on ptdump<a class="headerlink" href="#a-small-tutorial-on-p
 each row.</p>
 <p>Say that we are interested only on a specific <em>row range</em> of the /vlarray1
 object:</p>
-<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>ptdump -R2,3 -d vlarray1.h5:/vlarray1
-/vlarray1 <span class="o">(</span>VLArray<span class="o">(</span><span class="m">3</span>,<span class="o">)</span>, shuffle, zlib<span class="o">(</span><span class="m">1</span><span class="o">))</span> <span class="s1">&#39;ragged array of ints&#39;</span>
-  Data dump:
-<span class="o">[</span><span class="m">2</span><span class="o">]</span> <span class="o">[</span><span class="m">5</span> <span class="m">6</span> <span class="m">9</span> <span class="m">8</span><span class="o">]</span>
+<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>ptdump<span class="w"> </span>-R2,3<span class="w"> </span>-d<span class="w"> </span>vlarray1.h5:/vlarray1
+/vlarray1<span class="w"> </span><span class="o">(</span>VLArray<span class="o">(</span><span class="m">3</span>,<span class="o">)</span>,<span class="w"> </span>shuffle,<span class="w"> </span>zlib<span class="o">(</span><span class="m">1</span><span class="o">))</span><span class="w"> </span><span class="s1">&#39;ragged array of ints&#39;</span>
+<span class="w">  </span>Data<span class="w"> </span>dump:
+<span class="o">[</span><span class="m">2</span><span class="o">]</span><span class="w"> </span><span class="o">[</span><span class="m">5</span><span class="w"> </span><span class="m">6</span><span class="w"> </span><span class="m">9</span><span class="w"> </span><span class="m">8</span><span class="o">]</span>
 </pre></div>
 </div>
 <p>Here, we have specified the range of rows between 2 and 4 (the upper limit
 excluded, as usual in Python). See how we have selected only the /vlarray1
 object for doing the dump (vlarray1.h5:/vlarray1).</p>
 <p>Finally, you can mix several information at once:</p>
-<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$ ptdump -R2,3 -vad vlarray1.h5:/vlarray1
-/vlarray1 <span class="o">(</span>VLArray<span class="o">(</span><span class="m">3</span>,<span class="o">)</span>, shuffle, zlib<span class="o">(</span><span class="m">1</span><span class="o">))</span> <span class="s1">&#39;ragged array of ints&#39;</span>
-  <span class="nv">atom</span> <span class="o">=</span> Int32Atom<span class="o">(</span><span class="nv">shape</span><span class="o">=()</span>, <span class="nv">dflt</span><span class="o">=</span><span class="m">0</span><span class="o">)</span>
-  <span class="nv">byteorder</span> <span class="o">=</span> <span class="s1">&#39;little&#39;</span>
-  <span class="nv">nrows</span> <span class="o">=</span> <span class="m">3</span>
-  <span class="nv">flavor</span> <span class="o">=</span> <span class="s1">&#39;numpy&#39;</span>
-  /vlarray1._v_attrs <span class="o">(</span>AttributeSet<span class="o">)</span>, <span class="m">3</span> attributes:
-   <span class="o">[</span>CLASS :<span class="o">=</span> <span class="s1">&#39;VLARRAY&#39;</span>,
-    TITLE :<span class="o">=</span> <span class="s1">&#39;ragged array of ints&#39;</span>,
-    VERSION :<span class="o">=</span> <span class="s1">&#39;1.3&#39;</span><span class="o">]</span>
-  Data dump:
-<span class="o">[</span><span class="m">2</span><span class="o">]</span> <span class="o">[</span><span class="m">5</span> <span class="m">6</span> <span class="m">9</span> <span class="m">8</span><span class="o">]</span>
+<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$<span class="w"> </span>ptdump<span class="w"> </span>-R2,3<span class="w"> </span>-vad<span class="w"> </span>vlarray1.h5:/vlarray1
+/vlarray1<span class="w"> </span><span class="o">(</span>VLArray<span class="o">(</span><span class="m">3</span>,<span class="o">)</span>,<span class="w"> </span>shuffle,<span class="w"> </span>zlib<span class="o">(</span><span class="m">1</span><span class="o">))</span><span class="w"> </span><span class="s1">&#39;ragged array of ints&#39;</span>
+<span class="w">  </span><span class="nv">atom</span><span class="w"> </span><span class="o">=</span><span class="w"> </span>Int32Atom<span class="o">(</span><span class="nv">shape</span><span class="o">=()</span>,<span class="w"> </span><span class="nv">dflt</span><span class="o">=</span><span class="m">0</span><span class="o">)</span>
+<span class="w">  </span><span class="nv">byteorder</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="s1">&#39;little&#39;</span>
+<span class="w">  </span><span class="nv">nrows</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">3</span>
+<span class="w">  </span><span class="nv">flavor</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="s1">&#39;numpy&#39;</span>
+<span class="w">  </span>/vlarray1._v_attrs<span class="w"> </span><span class="o">(</span>AttributeSet<span class="o">)</span>,<span class="w"> </span><span class="m">3</span><span class="w"> </span>attributes:
+<span class="w">   </span><span class="o">[</span>CLASS<span class="w"> </span>:<span class="o">=</span><span class="w"> </span><span class="s1">&#39;VLARRAY&#39;</span>,
+<span class="w">    </span>TITLE<span class="w"> </span>:<span class="o">=</span><span class="w"> </span><span class="s1">&#39;ragged array of ints&#39;</span>,
+<span class="w">    </span>VERSION<span class="w"> </span>:<span class="o">=</span><span class="w"> </span><span class="s1">&#39;1.3&#39;</span><span class="o">]</span>
+<span class="w">  </span>Data<span class="w"> </span>dump:
+<span class="o">[</span><span class="m">2</span><span class="o">]</span><span class="w"> </span><span class="o">[</span><span class="m">5</span><span class="w"> </span><span class="m">6</span><span class="w"> </span><span class="m">9</span><span class="w"> </span><span class="m">8</span><span class="o">]</span>
 </pre></div>
 </div>
 </section>
@@ -268,94 +273,94 @@ <h3>A small tutorial on ptdump<a class="headerlink" href="#a-small-tutorial-on-p
 <section id="id1">
 <h3>Usage<a class="headerlink" href="#id1" title="Permalink to this heading">¶</a></h3>
 <p>For instructions on how to use it, just pass the -h flag to the command:</p>
-<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$ ptrepack -h
+<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$<span class="w"> </span>ptrepack<span class="w"> </span>-h
 </pre></div>
 </div>
 <p>to see the message usage:</p>
-<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>usage: ptrepack <span class="o">[</span>-h<span class="o">]</span> <span class="o">[</span>-v<span class="o">]</span> <span class="o">[</span>-o<span class="o">]</span> <span class="o">[</span>-R RANGE<span class="o">]</span> <span class="o">[</span>--non-recursive<span class="o">]</span>
-                <span class="o">[</span>--dest-title TITLE<span class="o">]</span> <span class="o">[</span>--dont-create-sysattrs<span class="o">]</span>
-                <span class="o">[</span>--dont-copy-userattrs<span class="o">]</span> <span class="o">[</span>--overwrite-nodes<span class="o">]</span>
-                <span class="o">[</span>--complevel COMPLEVEL<span class="o">]</span>
-                <span class="o">[</span>--complib <span class="o">{</span>zlib,lzo,bzip2,blosc,blosc:blosclz,blosc:lz4,blosc:lz4hc,blosc:snappy,blosc:zlib,blosc:zstd<span class="o">}]</span>
-                <span class="o">[</span>--shuffle <span class="o">{</span><span class="m">0</span>,1<span class="o">}]</span> <span class="o">[</span>--bitshuffle <span class="o">{</span><span class="m">0</span>,1<span class="o">}]</span> <span class="o">[</span>--fletcher32 <span class="o">{</span><span class="m">0</span>,1<span class="o">}]</span>
-                <span class="o">[</span>--keep-source-filters<span class="o">]</span> <span class="o">[</span>--chunkshape CHUNKSHAPE<span class="o">]</span>
-                <span class="o">[</span>--upgrade-flavors<span class="o">]</span> <span class="o">[</span>--dont-regenerate-old-indexes<span class="o">]</span>
-                <span class="o">[</span>--sortby COLUMN<span class="o">]</span> <span class="o">[</span>--checkCSI<span class="o">]</span> <span class="o">[</span>--propindexes<span class="o">]</span>
-                sourcefile:sourcegroup destfile:destgroup
+<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>usage:<span class="w"> </span>ptrepack<span class="w"> </span><span class="o">[</span>-h<span class="o">]</span><span class="w"> </span><span class="o">[</span>-v<span class="o">]</span><span class="w"> </span><span class="o">[</span>-o<span class="o">]</span><span class="w"> </span><span class="o">[</span>-R<span class="w"> </span>RANGE<span class="o">]</span><span class="w"> </span><span class="o">[</span>--non-recursive<span class="o">]</span>
+<span class="w">                </span><span class="o">[</span>--dest-title<span class="w"> </span>TITLE<span class="o">]</span><span class="w"> </span><span class="o">[</span>--dont-create-sysattrs<span class="o">]</span>
+<span class="w">                </span><span class="o">[</span>--dont-copy-userattrs<span class="o">]</span><span class="w"> </span><span class="o">[</span>--overwrite-nodes<span class="o">]</span>
+<span class="w">                </span><span class="o">[</span>--complevel<span class="w"> </span>COMPLEVEL<span class="o">]</span>
+<span class="w">                </span><span class="o">[</span>--complib<span class="w"> </span><span class="o">{</span>zlib,lzo,bzip2,blosc,blosc:blosclz,blosc:lz4,blosc:lz4hc,blosc:snappy,blosc:zlib,blosc:zstd<span class="o">}]</span>
+<span class="w">                </span><span class="o">[</span>--shuffle<span class="w"> </span><span class="o">{</span><span class="m">0</span>,1<span class="o">}]</span><span class="w"> </span><span class="o">[</span>--bitshuffle<span class="w"> </span><span class="o">{</span><span class="m">0</span>,1<span class="o">}]</span><span class="w"> </span><span class="o">[</span>--fletcher32<span class="w"> </span><span class="o">{</span><span class="m">0</span>,1<span class="o">}]</span>
+<span class="w">                </span><span class="o">[</span>--keep-source-filters<span class="o">]</span><span class="w"> </span><span class="o">[</span>--chunkshape<span class="w"> </span>CHUNKSHAPE<span class="o">]</span>
+<span class="w">                </span><span class="o">[</span>--upgrade-flavors<span class="o">]</span><span class="w"> </span><span class="o">[</span>--dont-regenerate-old-indexes<span class="o">]</span>
+<span class="w">                </span><span class="o">[</span>--sortby<span class="w"> </span>COLUMN<span class="o">]</span><span class="w"> </span><span class="o">[</span>--checkCSI<span class="o">]</span><span class="w"> </span><span class="o">[</span>--propindexes<span class="o">]</span>
+<span class="w">                </span>sourcefile:sourcegroup<span class="w"> </span>destfile:destgroup
 
-This utility is very powerful and lets you copy any leaf, group or <span class="nb">complete</span>
-subtree into another file. During the copy process you are allowed to change
-the filter properties <span class="k">if</span> you want so. Also, <span class="k">in</span> the <span class="k">case</span> of duplicated
-pathnames, you can decide <span class="k">if</span> you want to overwrite already existing nodes on
-the destination file. Generally speaking, ptrepack can be useful <span class="k">in</span> may
-situations, like replicating a subtree <span class="k">in</span> another file, change the filters <span class="k">in</span>
-objects and see how affect this to the compression degree or I/O performance,
-consolidating specific data <span class="k">in</span> repositories or even *importing* generic HDF5
-files and create <span class="nb">true</span> PyTables counterparts.
+This<span class="w"> </span>utility<span class="w"> </span>is<span class="w"> </span>very<span class="w"> </span>powerful<span class="w"> </span>and<span class="w"> </span>lets<span class="w"> </span>you<span class="w"> </span>copy<span class="w"> </span>any<span class="w"> </span>leaf,<span class="w"> </span>group<span class="w"> </span>or<span class="w"> </span><span class="nb">complete</span>
+subtree<span class="w"> </span>into<span class="w"> </span>another<span class="w"> </span>file.<span class="w"> </span>During<span class="w"> </span>the<span class="w"> </span>copy<span class="w"> </span>process<span class="w"> </span>you<span class="w"> </span>are<span class="w"> </span>allowed<span class="w"> </span>to<span class="w"> </span>change
+the<span class="w"> </span>filter<span class="w"> </span>properties<span class="w"> </span><span class="k">if</span><span class="w"> </span>you<span class="w"> </span>want<span class="w"> </span>so.<span class="w"> </span>Also,<span class="w"> </span><span class="k">in</span><span class="w"> </span>the<span class="w"> </span><span class="k">case</span><span class="w"> </span>of<span class="w"> </span>duplicated
+pathnames,<span class="w"> </span>you<span class="w"> </span>can<span class="w"> </span>decide<span class="w"> </span><span class="k">if</span><span class="w"> </span>you<span class="w"> </span>want<span class="w"> </span>to<span class="w"> </span>overwrite<span class="w"> </span>already<span class="w"> </span>existing<span class="w"> </span>nodes<span class="w"> </span>on
+the<span class="w"> </span>destination<span class="w"> </span>file.<span class="w"> </span>Generally<span class="w"> </span>speaking,<span class="w"> </span>ptrepack<span class="w"> </span>can<span class="w"> </span>be<span class="w"> </span>useful<span class="w"> </span><span class="k">in</span><span class="w"> </span>may
+situations,<span class="w"> </span>like<span class="w"> </span>replicating<span class="w"> </span>a<span class="w"> </span>subtree<span class="w"> </span><span class="k">in</span><span class="w"> </span>another<span class="w"> </span>file,<span class="w"> </span>change<span class="w"> </span>the<span class="w"> </span>filters<span class="w"> </span><span class="k">in</span>
+objects<span class="w"> </span>and<span class="w"> </span>see<span class="w"> </span>how<span class="w"> </span>affect<span class="w"> </span>this<span class="w"> </span>to<span class="w"> </span>the<span class="w"> </span>compression<span class="w"> </span>degree<span class="w"> </span>or<span class="w"> </span>I/O<span class="w"> </span>performance,
+consolidating<span class="w"> </span>specific<span class="w"> </span>data<span class="w"> </span><span class="k">in</span><span class="w"> </span>repositories<span class="w"> </span>or<span class="w"> </span>even<span class="w"> </span>*importing*<span class="w"> </span>generic<span class="w"> </span>HDF5
+files<span class="w"> </span>and<span class="w"> </span>create<span class="w"> </span><span class="nb">true</span><span class="w"> </span>PyTables<span class="w"> </span>counterparts.
 
-positional arguments:
-  sourcefile:sourcegroup
-                        <span class="nb">source</span> file/group
-  destfile:destgroup    destination file/group
+positional<span class="w"> </span>arguments:
+<span class="w">  </span>sourcefile:sourcegroup
+<span class="w">                        </span><span class="nb">source</span><span class="w"> </span>file/group
+<span class="w">  </span>destfile:destgroup<span class="w">    </span>destination<span class="w"> </span>file/group
 
-optional arguments:
-  -h, --help            show this <span class="nb">help</span> message and <span class="nb">exit</span>
-  -v, --verbose         show verbose information
-  -o, --overwrite       overwrite destination file
-  -R RANGE, --range RANGE
-                        <span class="k">select</span> a RANGE of rows <span class="o">(</span><span class="k">in</span> the form <span class="s2">&quot;start,stop,step&quot;</span><span class="o">)</span>
-                        during the copy of *all* the leaves. Default values
-                        are <span class="s2">&quot;None,None,1&quot;</span>, which means a copy of all the rows.
-  --non-recursive       <span class="k">do</span> not <span class="k">do</span> a recursive copy. Default is to <span class="k">do</span> it
-  --dest-title TITLE    title <span class="k">for</span> the new file <span class="o">(</span><span class="k">if</span> not specified, the <span class="nb">source</span>
-                        is copied<span class="o">)</span>
-  --dont-create-sysattrs
-                        <span class="k">do</span> not create sys attrs <span class="o">(</span>default is to <span class="k">do</span> it<span class="o">)</span>
-  --dont-copy-userattrs
-                        <span class="k">do</span> not copy the user attrs <span class="o">(</span>default is to <span class="k">do</span> it<span class="o">)</span>
-  --overwrite-nodes     overwrite destination nodes <span class="k">if</span> they exist. Default is
-                        to not overwrite them
-  --complevel COMPLEVEL
-                        <span class="nb">set</span> a compression level <span class="o">(</span><span class="m">0</span> <span class="k">for</span> no compression, which
-                        is the default<span class="o">)</span>
-  --complib <span class="o">{</span>zlib,lzo,bzip2,blosc,blosc:blosclz,blosc:lz4,blosc:lz4hc,blosc:snappy,blosc:zlib,blosc:zstd<span class="o">}</span>
-                        <span class="nb">set</span> the compression library to be used during the
-                        copy. Defaults to zlib
-  --shuffle <span class="o">{</span><span class="m">0</span>,1<span class="o">}</span>       activate or not the shuffle filter <span class="o">(</span>default is active
-                        <span class="k">if</span> complevel &gt; <span class="m">0</span><span class="o">)</span>
-  --bitshuffle <span class="o">{</span><span class="m">0</span>,1<span class="o">}</span>    activate or not the bitshuffle filter <span class="o">(</span>not active by
-                        default<span class="o">)</span>
-  --fletcher32 <span class="o">{</span><span class="m">0</span>,1<span class="o">}</span>    whether to activate or not the fletcher32 filter <span class="o">(</span>not
-                        active by default<span class="o">)</span>
-  --keep-source-filters
-                        use the original filters <span class="k">in</span> <span class="nb">source</span> files. The default
-                        is not doing that <span class="k">if</span> any of --complevel, --complib,
-                        --shuffle --bitshuffle or --fletcher32 option is
-                        specified
-  --chunkshape CHUNKSHAPE
-                        <span class="nb">set</span> a chunkshape. Possible options are: <span class="s2">&quot;keep&quot;</span> <span class="p">|</span>
-                        <span class="s2">&quot;auto&quot;</span> <span class="p">|</span> int <span class="p">|</span> tuple. A value of <span class="s2">&quot;auto&quot;</span> computes a
-                        sensible value <span class="k">for</span> the chunkshape of the leaves
-                        copied. The default is to <span class="s2">&quot;keep&quot;</span> the original value
-  --upgrade-flavors     when repacking PyTables <span class="m">1</span>.x or PyTables <span class="m">2</span>.x files, the
-                        flavor of leaves will be unset. With this, such a
-                        leaves will be serialized as objects with the internal
-                        flavor <span class="o">(</span><span class="s1">&#39;numpy&#39;</span> <span class="k">for</span> <span class="m">3</span>.x series<span class="o">)</span>
-  --dont-regenerate-old-indexes
-                        disable regenerating old indexes. The default is to
-                        regenerate old indexes as they are found
-  --sortby COLUMN       <span class="k">do</span> a table copy sorted by the index <span class="k">in</span> <span class="s2">&quot;column&quot;</span>. For
-                        reversing the order, use a negative value <span class="k">in</span> the
-                        <span class="s2">&quot;step&quot;</span> part of <span class="s2">&quot;RANGE&quot;</span> <span class="o">(</span>see <span class="s2">&quot;-r&quot;</span> flag<span class="o">)</span>. Only applies
-                        to table objects
-  --checkCSI            force the check <span class="k">for</span> a CSI index <span class="k">for</span> the --sortby
-                        column
-  --propindexes         propagate the indexes existing <span class="k">in</span> original tables. The
-                        default is to not propagate them. Only applies to
-                        table objects
-  --dont-allow-padding  remove the possible padding <span class="k">in</span> compound types <span class="k">in</span>
-                        <span class="nb">source</span> files. The default is to propagate it. Only
-                        applies to table objects
+optional<span class="w"> </span>arguments:
+<span class="w">  </span>-h,<span class="w"> </span>--help<span class="w">            </span>show<span class="w"> </span>this<span class="w"> </span><span class="nb">help</span><span class="w"> </span>message<span class="w"> </span>and<span class="w"> </span><span class="nb">exit</span>
+<span class="w">  </span>-v,<span class="w"> </span>--verbose<span class="w">         </span>show<span class="w"> </span>verbose<span class="w"> </span>information
+<span class="w">  </span>-o,<span class="w"> </span>--overwrite<span class="w">       </span>overwrite<span class="w"> </span>destination<span class="w"> </span>file
+<span class="w">  </span>-R<span class="w"> </span>RANGE,<span class="w"> </span>--range<span class="w"> </span>RANGE
+<span class="w">                        </span><span class="k">select</span><span class="w"> </span>a<span class="w"> </span>RANGE<span class="w"> </span>of<span class="w"> </span>rows<span class="w"> </span><span class="o">(</span><span class="k">in</span><span class="w"> </span>the<span class="w"> </span>form<span class="w"> </span><span class="s2">&quot;start,stop,step&quot;</span><span class="o">)</span>
+<span class="w">                        </span>during<span class="w"> </span>the<span class="w"> </span>copy<span class="w"> </span>of<span class="w"> </span>*all*<span class="w"> </span>the<span class="w"> </span>leaves.<span class="w"> </span>Default<span class="w"> </span>values
+<span class="w">                        </span>are<span class="w"> </span><span class="s2">&quot;None,None,1&quot;</span>,<span class="w"> </span>which<span class="w"> </span>means<span class="w"> </span>a<span class="w"> </span>copy<span class="w"> </span>of<span class="w"> </span>all<span class="w"> </span>the<span class="w"> </span>rows.
+<span class="w">  </span>--non-recursive<span class="w">       </span><span class="k">do</span><span class="w"> </span>not<span class="w"> </span><span class="k">do</span><span class="w"> </span>a<span class="w"> </span>recursive<span class="w"> </span>copy.<span class="w"> </span>Default<span class="w"> </span>is<span class="w"> </span>to<span class="w"> </span><span class="k">do</span><span class="w"> </span>it
+<span class="w">  </span>--dest-title<span class="w"> </span>TITLE<span class="w">    </span>title<span class="w"> </span><span class="k">for</span><span class="w"> </span>the<span class="w"> </span>new<span class="w"> </span>file<span class="w"> </span><span class="o">(</span><span class="k">if</span><span class="w"> </span>not<span class="w"> </span>specified,<span class="w"> </span>the<span class="w"> </span><span class="nb">source</span>
+<span class="w">                        </span>is<span class="w"> </span>copied<span class="o">)</span>
+<span class="w">  </span>--dont-create-sysattrs
+<span class="w">                        </span><span class="k">do</span><span class="w"> </span>not<span class="w"> </span>create<span class="w"> </span>sys<span class="w"> </span>attrs<span class="w"> </span><span class="o">(</span>default<span class="w"> </span>is<span class="w"> </span>to<span class="w"> </span><span class="k">do</span><span class="w"> </span>it<span class="o">)</span>
+<span class="w">  </span>--dont-copy-userattrs
+<span class="w">                        </span><span class="k">do</span><span class="w"> </span>not<span class="w"> </span>copy<span class="w"> </span>the<span class="w"> </span>user<span class="w"> </span>attrs<span class="w"> </span><span class="o">(</span>default<span class="w"> </span>is<span class="w"> </span>to<span class="w"> </span><span class="k">do</span><span class="w"> </span>it<span class="o">)</span>
+<span class="w">  </span>--overwrite-nodes<span class="w">     </span>overwrite<span class="w"> </span>destination<span class="w"> </span>nodes<span class="w"> </span><span class="k">if</span><span class="w"> </span>they<span class="w"> </span>exist.<span class="w"> </span>Default<span class="w"> </span>is
+<span class="w">                        </span>to<span class="w"> </span>not<span class="w"> </span>overwrite<span class="w"> </span>them
+<span class="w">  </span>--complevel<span class="w"> </span>COMPLEVEL
+<span class="w">                        </span><span class="nb">set</span><span class="w"> </span>a<span class="w"> </span>compression<span class="w"> </span>level<span class="w"> </span><span class="o">(</span><span class="m">0</span><span class="w"> </span><span class="k">for</span><span class="w"> </span>no<span class="w"> </span>compression,<span class="w"> </span>which
+<span class="w">                        </span>is<span class="w"> </span>the<span class="w"> </span>default<span class="o">)</span>
+<span class="w">  </span>--complib<span class="w"> </span><span class="o">{</span>zlib,lzo,bzip2,blosc,blosc:blosclz,blosc:lz4,blosc:lz4hc,blosc:snappy,blosc:zlib,blosc:zstd<span class="o">}</span>
+<span class="w">                        </span><span class="nb">set</span><span class="w"> </span>the<span class="w"> </span>compression<span class="w"> </span>library<span class="w"> </span>to<span class="w"> </span>be<span class="w"> </span>used<span class="w"> </span>during<span class="w"> </span>the
+<span class="w">                        </span>copy.<span class="w"> </span>Defaults<span class="w"> </span>to<span class="w"> </span>zlib
+<span class="w">  </span>--shuffle<span class="w"> </span><span class="o">{</span><span class="m">0</span>,1<span class="o">}</span><span class="w">       </span>activate<span class="w"> </span>or<span class="w"> </span>not<span class="w"> </span>the<span class="w"> </span>shuffle<span class="w"> </span>filter<span class="w"> </span><span class="o">(</span>default<span class="w"> </span>is<span class="w"> </span>active
+<span class="w">                        </span><span class="k">if</span><span class="w"> </span>complevel<span class="w"> </span>&gt;<span class="w"> </span><span class="m">0</span><span class="o">)</span>
+<span class="w">  </span>--bitshuffle<span class="w"> </span><span class="o">{</span><span class="m">0</span>,1<span class="o">}</span><span class="w">    </span>activate<span class="w"> </span>or<span class="w"> </span>not<span class="w"> </span>the<span class="w"> </span>bitshuffle<span class="w"> </span>filter<span class="w"> </span><span class="o">(</span>not<span class="w"> </span>active<span class="w"> </span>by
+<span class="w">                        </span>default<span class="o">)</span>
+<span class="w">  </span>--fletcher32<span class="w"> </span><span class="o">{</span><span class="m">0</span>,1<span class="o">}</span><span class="w">    </span>whether<span class="w"> </span>to<span class="w"> </span>activate<span class="w"> </span>or<span class="w"> </span>not<span class="w"> </span>the<span class="w"> </span>fletcher32<span class="w"> </span>filter<span class="w"> </span><span class="o">(</span>not
+<span class="w">                        </span>active<span class="w"> </span>by<span class="w"> </span>default<span class="o">)</span>
+<span class="w">  </span>--keep-source-filters
+<span class="w">                        </span>use<span class="w"> </span>the<span class="w"> </span>original<span class="w"> </span>filters<span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="nb">source</span><span class="w"> </span>files.<span class="w"> </span>The<span class="w"> </span>default
+<span class="w">                        </span>is<span class="w"> </span>not<span class="w"> </span>doing<span class="w"> </span>that<span class="w"> </span><span class="k">if</span><span class="w"> </span>any<span class="w"> </span>of<span class="w"> </span>--complevel,<span class="w"> </span>--complib,
+<span class="w">                        </span>--shuffle<span class="w"> </span>--bitshuffle<span class="w"> </span>or<span class="w"> </span>--fletcher32<span class="w"> </span>option<span class="w"> </span>is
+<span class="w">                        </span>specified
+<span class="w">  </span>--chunkshape<span class="w"> </span>CHUNKSHAPE
+<span class="w">                        </span><span class="nb">set</span><span class="w"> </span>a<span class="w"> </span>chunkshape.<span class="w"> </span>Possible<span class="w"> </span>options<span class="w"> </span>are:<span class="w"> </span><span class="s2">&quot;keep&quot;</span><span class="w"> </span><span class="p">|</span>
+<span class="w">                        </span><span class="s2">&quot;auto&quot;</span><span class="w"> </span><span class="p">|</span><span class="w"> </span>int<span class="w"> </span><span class="p">|</span><span class="w"> </span>tuple.<span class="w"> </span>A<span class="w"> </span>value<span class="w"> </span>of<span class="w"> </span><span class="s2">&quot;auto&quot;</span><span class="w"> </span>computes<span class="w"> </span>a
+<span class="w">                        </span>sensible<span class="w"> </span>value<span class="w"> </span><span class="k">for</span><span class="w"> </span>the<span class="w"> </span>chunkshape<span class="w"> </span>of<span class="w"> </span>the<span class="w"> </span>leaves
+<span class="w">                        </span>copied.<span class="w"> </span>The<span class="w"> </span>default<span class="w"> </span>is<span class="w"> </span>to<span class="w"> </span><span class="s2">&quot;keep&quot;</span><span class="w"> </span>the<span class="w"> </span>original<span class="w"> </span>value
+<span class="w">  </span>--upgrade-flavors<span class="w">     </span>when<span class="w"> </span>repacking<span class="w"> </span>PyTables<span class="w"> </span><span class="m">1</span>.x<span class="w"> </span>or<span class="w"> </span>PyTables<span class="w"> </span><span class="m">2</span>.x<span class="w"> </span>files,<span class="w"> </span>the
+<span class="w">                        </span>flavor<span class="w"> </span>of<span class="w"> </span>leaves<span class="w"> </span>will<span class="w"> </span>be<span class="w"> </span>unset.<span class="w"> </span>With<span class="w"> </span>this,<span class="w"> </span>such<span class="w"> </span>a
+<span class="w">                        </span>leaves<span class="w"> </span>will<span class="w"> </span>be<span class="w"> </span>serialized<span class="w"> </span>as<span class="w"> </span>objects<span class="w"> </span>with<span class="w"> </span>the<span class="w"> </span>internal
+<span class="w">                        </span>flavor<span class="w"> </span><span class="o">(</span><span class="s1">&#39;numpy&#39;</span><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="m">3</span>.x<span class="w"> </span>series<span class="o">)</span>
+<span class="w">  </span>--dont-regenerate-old-indexes
+<span class="w">                        </span>disable<span class="w"> </span>regenerating<span class="w"> </span>old<span class="w"> </span>indexes.<span class="w"> </span>The<span class="w"> </span>default<span class="w"> </span>is<span class="w"> </span>to
+<span class="w">                        </span>regenerate<span class="w"> </span>old<span class="w"> </span>indexes<span class="w"> </span>as<span class="w"> </span>they<span class="w"> </span>are<span class="w"> </span>found
+<span class="w">  </span>--sortby<span class="w"> </span>COLUMN<span class="w">       </span><span class="k">do</span><span class="w"> </span>a<span class="w"> </span>table<span class="w"> </span>copy<span class="w"> </span>sorted<span class="w"> </span>by<span class="w"> </span>the<span class="w"> </span>index<span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="s2">&quot;column&quot;</span>.<span class="w"> </span>For
+<span class="w">                        </span>reversing<span class="w"> </span>the<span class="w"> </span>order,<span class="w"> </span>use<span class="w"> </span>a<span class="w"> </span>negative<span class="w"> </span>value<span class="w"> </span><span class="k">in</span><span class="w"> </span>the
+<span class="w">                        </span><span class="s2">&quot;step&quot;</span><span class="w"> </span>part<span class="w"> </span>of<span class="w"> </span><span class="s2">&quot;RANGE&quot;</span><span class="w"> </span><span class="o">(</span>see<span class="w"> </span><span class="s2">&quot;-r&quot;</span><span class="w"> </span>flag<span class="o">)</span>.<span class="w"> </span>Only<span class="w"> </span>applies
+<span class="w">                        </span>to<span class="w"> </span>table<span class="w"> </span>objects
+<span class="w">  </span>--checkCSI<span class="w">            </span>force<span class="w"> </span>the<span class="w"> </span>check<span class="w"> </span><span class="k">for</span><span class="w"> </span>a<span class="w"> </span>CSI<span class="w"> </span>index<span class="w"> </span><span class="k">for</span><span class="w"> </span>the<span class="w"> </span>--sortby
+<span class="w">                        </span>column
+<span class="w">  </span>--propindexes<span class="w">         </span>propagate<span class="w"> </span>the<span class="w"> </span>indexes<span class="w"> </span>existing<span class="w"> </span><span class="k">in</span><span class="w"> </span>original<span class="w"> </span>tables.<span class="w"> </span>The
+<span class="w">                        </span>default<span class="w"> </span>is<span class="w"> </span>to<span class="w"> </span>not<span class="w"> </span>propagate<span class="w"> </span>them.<span class="w"> </span>Only<span class="w"> </span>applies<span class="w"> </span>to
+<span class="w">                        </span>table<span class="w"> </span>objects
+<span class="w">  </span>--dont-allow-padding<span class="w">  </span>remove<span class="w"> </span>the<span class="w"> </span>possible<span class="w"> </span>padding<span class="w"> </span><span class="k">in</span><span class="w"> </span>compound<span class="w"> </span>types<span class="w"> </span><span class="k">in</span>
+<span class="w">                        </span><span class="nb">source</span><span class="w"> </span>files.<span class="w"> </span>The<span class="w"> </span>default<span class="w"> </span>is<span class="w"> </span>to<span class="w"> </span>propagate<span class="w"> </span>it.<span class="w"> </span>Only
+<span class="w">                        </span>applies<span class="w"> </span>to<span class="w"> </span>table<span class="w"> </span>objects
 </pre></div>
 </div>
 <p>Read on for a brief introduction to this utility.</p>
@@ -366,24 +371,24 @@ <h3>A small tutorial on ptrepack<a class="headerlink" href="#a-small-tutorial-on
 examples/tutorial1-1.py), and we want to copy our reduced data (i.e. those
 datasets that hangs from the /column group) to another file. First, let’s
 remember the content of the examples/tutorial1.h5:</p>
-<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$ ptdump tutorial1.h5
-/ <span class="o">(</span>RootGroup<span class="o">)</span> <span class="s1">&#39;Test file&#39;</span>
-/columns <span class="o">(</span>Group<span class="o">)</span> <span class="s1">&#39;Pressure and Name&#39;</span>
-/columns/name <span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span> <span class="s1">&#39;Name column selection&#39;</span>
-/columns/pressure <span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span> <span class="s1">&#39;Pressure column selection&#39;</span>
-/detector <span class="o">(</span>Group<span class="o">)</span> <span class="s1">&#39;Detector information&#39;</span>
-/detector/readout <span class="o">(</span>Table<span class="o">(</span><span class="m">10</span>,<span class="o">))</span> <span class="s1">&#39;Readout example&#39;</span>
+<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$<span class="w"> </span>ptdump<span class="w"> </span>tutorial1.h5
+/<span class="w"> </span><span class="o">(</span>RootGroup<span class="o">)</span><span class="w"> </span><span class="s1">&#39;Test file&#39;</span>
+/columns<span class="w"> </span><span class="o">(</span>Group<span class="o">)</span><span class="w"> </span><span class="s1">&#39;Pressure and Name&#39;</span>
+/columns/name<span class="w"> </span><span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span><span class="w"> </span><span class="s1">&#39;Name column selection&#39;</span>
+/columns/pressure<span class="w"> </span><span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span><span class="w"> </span><span class="s1">&#39;Pressure column selection&#39;</span>
+/detector<span class="w"> </span><span class="o">(</span>Group<span class="o">)</span><span class="w"> </span><span class="s1">&#39;Detector information&#39;</span>
+/detector/readout<span class="w"> </span><span class="o">(</span>Table<span class="o">(</span><span class="m">10</span>,<span class="o">))</span><span class="w"> </span><span class="s1">&#39;Readout example&#39;</span>
 </pre></div>
 </div>
 <p>Now, copy the /columns to other non-existing file. That’s easy:</p>
-<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$ ptrepack tutorial1.h5:/columns reduced.h5
+<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$<span class="w"> </span>ptrepack<span class="w"> </span>tutorial1.h5:/columns<span class="w"> </span>reduced.h5
 </pre></div>
 </div>
 <p>That’s all. Let’s see the contents of the newly created reduced.h5 file:</p>
-<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$ ptdump reduced.h5
-/ <span class="o">(</span>RootGroup<span class="o">)</span> <span class="s1">&#39;&#39;</span>
-/name <span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span> <span class="s1">&#39;Name column selection&#39;</span>
-/pressure <span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span> <span class="s1">&#39;Pressure column selection&#39;</span>
+<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$<span class="w"> </span>ptdump<span class="w"> </span>reduced.h5
+/<span class="w"> </span><span class="o">(</span>RootGroup<span class="o">)</span><span class="w"> </span><span class="s1">&#39;&#39;</span>
+/name<span class="w"> </span><span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span><span class="w"> </span><span class="s1">&#39;Name column selection&#39;</span>
+/pressure<span class="w"> </span><span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span><span class="w"> </span><span class="s1">&#39;Pressure column selection&#39;</span>
 </pre></div>
 </div>
 <p>so, you have copied the children of /columns group into the <em>root</em> of the
@@ -391,89 +396,89 @@ <h3>A small tutorial on ptrepack<a class="headerlink" href="#a-small-tutorial-on
 <p>Now, you suddenly realized that what you intended to do was to copy all the
 hierarchy, the group /columns itself included. You can do that by just
 specifying the destination group:</p>
-<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$ ptrepack tutorial1.h5:/columns reduced.h5:/columns
-$ ptdump reduced.h5
-/ <span class="o">(</span>RootGroup<span class="o">)</span> <span class="s1">&#39;&#39;</span>
-/name <span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span> <span class="s1">&#39;Name column selection&#39;</span>
-/pressure <span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span> <span class="s1">&#39;Pressure column selection&#39;</span>
-/columns <span class="o">(</span>Group<span class="o">)</span> <span class="s1">&#39;&#39;</span>
-/columns/name <span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span> <span class="s1">&#39;Name column selection&#39;</span>
-/columns/pressure <span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span> <span class="s1">&#39;Pressure column selection&#39;</span>
+<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$<span class="w"> </span>ptrepack<span class="w"> </span>tutorial1.h5:/columns<span class="w"> </span>reduced.h5:/columns
+$<span class="w"> </span>ptdump<span class="w"> </span>reduced.h5
+/<span class="w"> </span><span class="o">(</span>RootGroup<span class="o">)</span><span class="w"> </span><span class="s1">&#39;&#39;</span>
+/name<span class="w"> </span><span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span><span class="w"> </span><span class="s1">&#39;Name column selection&#39;</span>
+/pressure<span class="w"> </span><span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span><span class="w"> </span><span class="s1">&#39;Pressure column selection&#39;</span>
+/columns<span class="w"> </span><span class="o">(</span>Group<span class="o">)</span><span class="w"> </span><span class="s1">&#39;&#39;</span>
+/columns/name<span class="w"> </span><span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span><span class="w"> </span><span class="s1">&#39;Name column selection&#39;</span>
+/columns/pressure<span class="w"> </span><span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span><span class="w"> </span><span class="s1">&#39;Pressure column selection&#39;</span>
 </pre></div>
 </div>
 <p>OK. Much better. But you want to get rid of the existing nodes on the new
 file. You can achieve this by adding the -o flag:</p>
-<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$ ptrepack -o tutorial1.h5:/columns reduced.h5:/columns
-$ ptdump reduced.h5
-/ <span class="o">(</span>RootGroup<span class="o">)</span> <span class="s1">&#39;&#39;</span>
-/columns <span class="o">(</span>Group<span class="o">)</span> <span class="s1">&#39;&#39;</span>
-/columns/name <span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span> <span class="s1">&#39;Name column selection&#39;</span>
-/columns/pressure <span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span> <span class="s1">&#39;Pressure column selection&#39;</span>
+<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$<span class="w"> </span>ptrepack<span class="w"> </span>-o<span class="w"> </span>tutorial1.h5:/columns<span class="w"> </span>reduced.h5:/columns
+$<span class="w"> </span>ptdump<span class="w"> </span>reduced.h5
+/<span class="w"> </span><span class="o">(</span>RootGroup<span class="o">)</span><span class="w"> </span><span class="s1">&#39;&#39;</span>
+/columns<span class="w"> </span><span class="o">(</span>Group<span class="o">)</span><span class="w"> </span><span class="s1">&#39;&#39;</span>
+/columns/name<span class="w"> </span><span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span><span class="w"> </span><span class="s1">&#39;Name column selection&#39;</span>
+/columns/pressure<span class="w"> </span><span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span><span class="w"> </span><span class="s1">&#39;Pressure column selection&#39;</span>
 </pre></div>
 </div>
 <p>where you can see how the old contents of the reduced.h5 file has been
 overwritten.</p>
 <p>You can copy just one single node in the repacking operation and change its
 name in destination:</p>
-<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$ ptrepack tutorial1.h5:/detector/readout reduced.h5:/rawdata
-$ ptdump reduced.h5
-/ <span class="o">(</span>RootGroup<span class="o">)</span> <span class="s1">&#39;&#39;</span>
-/rawdata <span class="o">(</span>Table<span class="o">(</span><span class="m">10</span>,<span class="o">))</span> <span class="s1">&#39;Readout example&#39;</span>
-/columns <span class="o">(</span>Group<span class="o">)</span> <span class="s1">&#39;&#39;</span>
-/columns/name <span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span> <span class="s1">&#39;Name column selection&#39;</span>
-/columns/pressure <span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span> <span class="s1">&#39;Pressure column selection&#39;</span>
+<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$<span class="w"> </span>ptrepack<span class="w"> </span>tutorial1.h5:/detector/readout<span class="w"> </span>reduced.h5:/rawdata
+$<span class="w"> </span>ptdump<span class="w"> </span>reduced.h5
+/<span class="w"> </span><span class="o">(</span>RootGroup<span class="o">)</span><span class="w"> </span><span class="s1">&#39;&#39;</span>
+/rawdata<span class="w"> </span><span class="o">(</span>Table<span class="o">(</span><span class="m">10</span>,<span class="o">))</span><span class="w"> </span><span class="s1">&#39;Readout example&#39;</span>
+/columns<span class="w"> </span><span class="o">(</span>Group<span class="o">)</span><span class="w"> </span><span class="s1">&#39;&#39;</span>
+/columns/name<span class="w"> </span><span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span><span class="w"> </span><span class="s1">&#39;Name column selection&#39;</span>
+/columns/pressure<span class="w"> </span><span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span><span class="w"> </span><span class="s1">&#39;Pressure column selection&#39;</span>
 </pre></div>
 </div>
 <p>where the /detector/readout has been copied to /rawdata in destination.</p>
 <p>We can change the filter properties as well:</p>
-<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$ ptrepack --complevel<span class="o">=</span><span class="m">1</span> tutorial1.h5:/detector/readout reduced.h5:/rawdata
-Problems doing the copy from <span class="s1">&#39;tutorial1.h5:/detector/readout&#39;</span> to <span class="s1">&#39;reduced.h5:/rawdata&#39;</span>
-The error was --&gt; tables.exceptions.NodeError: destination group <span class="se">\`</span><span class="sb">`</span>/<span class="se">\`</span><span class="sb">`</span> already has a node named <span class="se">\`</span><span class="sb">`</span>rawdata<span class="sb">``</span><span class="p">;</span> you may want to use the <span class="se">\`</span><span class="sb">`</span>overwrite<span class="sb">``</span> argument
-The destination file looks like:
-/ <span class="o">(</span>RootGroup<span class="o">)</span> <span class="s1">&#39;&#39;</span>
-/rawdata <span class="o">(</span>Table<span class="o">(</span><span class="m">10</span>,<span class="o">))</span> <span class="s1">&#39;Readout example&#39;</span>
-/columns <span class="o">(</span>Group<span class="o">)</span> <span class="s1">&#39;&#39;</span>
-/columns/name <span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span> <span class="s1">&#39;Name column selection&#39;</span>
-/columns/pressure <span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span> <span class="s1">&#39;Pressure column selection&#39;</span>
-Traceback <span class="o">(</span>most recent call last<span class="o">)</span>:
-  File <span class="s2">&quot;utils/ptrepack&quot;</span>, line <span class="m">3</span>, <span class="k">in</span> ?
-    main<span class="o">()</span>
-  File <span class="s2">&quot;.../tables/scripts/ptrepack.py&quot;</span>, line <span class="m">349</span>, <span class="k">in</span> main
-    <span class="nv">stats</span> <span class="o">=</span> stats, <span class="nv">start</span> <span class="o">=</span> start, <span class="nv">stop</span> <span class="o">=</span> stop, <span class="nv">step</span> <span class="o">=</span> step<span class="o">)</span>
-  File <span class="s2">&quot;.../tables/scripts/ptrepack.py&quot;</span>, line <span class="m">107</span>, <span class="k">in</span> copy_leaf
-    raise RuntimeError, <span class="s2">&quot;Please check that the node names are not</span>
+<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$<span class="w"> </span>ptrepack<span class="w"> </span>--complevel<span class="o">=</span><span class="m">1</span><span class="w"> </span>tutorial1.h5:/detector/readout<span class="w"> </span>reduced.h5:/rawdata
+Problems<span class="w"> </span>doing<span class="w"> </span>the<span class="w"> </span>copy<span class="w"> </span>from<span class="w"> </span><span class="s1">&#39;tutorial1.h5:/detector/readout&#39;</span><span class="w"> </span>to<span class="w"> </span><span class="s1">&#39;reduced.h5:/rawdata&#39;</span>
+The<span class="w"> </span>error<span class="w"> </span>was<span class="w"> </span>--&gt;<span class="w"> </span>tables.exceptions.NodeError:<span class="w"> </span>destination<span class="w"> </span>group<span class="w"> </span><span class="se">\`</span><span class="sb">`</span>/<span class="se">\`</span><span class="sb">`</span><span class="w"> </span>already<span class="w"> </span>has<span class="w"> </span>a<span class="w"> </span>node<span class="w"> </span>named<span class="w"> </span><span class="se">\`</span><span class="sb">`</span>rawdata<span class="sb">``</span><span class="p">;</span><span class="w"> </span>you<span class="w"> </span>may<span class="w"> </span>want<span class="w"> </span>to<span class="w"> </span>use<span class="w"> </span>the<span class="w"> </span><span class="se">\`</span><span class="sb">`</span>overwrite<span class="sb">``</span><span class="w"> </span>argument
+The<span class="w"> </span>destination<span class="w"> </span>file<span class="w"> </span>looks<span class="w"> </span>like:
+/<span class="w"> </span><span class="o">(</span>RootGroup<span class="o">)</span><span class="w"> </span><span class="s1">&#39;&#39;</span>
+/rawdata<span class="w"> </span><span class="o">(</span>Table<span class="o">(</span><span class="m">10</span>,<span class="o">))</span><span class="w"> </span><span class="s1">&#39;Readout example&#39;</span>
+/columns<span class="w"> </span><span class="o">(</span>Group<span class="o">)</span><span class="w"> </span><span class="s1">&#39;&#39;</span>
+/columns/name<span class="w"> </span><span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span><span class="w"> </span><span class="s1">&#39;Name column selection&#39;</span>
+/columns/pressure<span class="w"> </span><span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span><span class="w"> </span><span class="s1">&#39;Pressure column selection&#39;</span>
+Traceback<span class="w"> </span><span class="o">(</span>most<span class="w"> </span>recent<span class="w"> </span>call<span class="w"> </span>last<span class="o">)</span>:
+<span class="w">  </span>File<span class="w"> </span><span class="s2">&quot;utils/ptrepack&quot;</span>,<span class="w"> </span>line<span class="w"> </span><span class="m">3</span>,<span class="w"> </span><span class="k">in</span><span class="w"> </span>?
+<span class="w">    </span>main<span class="o">()</span>
+<span class="w">  </span>File<span class="w"> </span><span class="s2">&quot;.../tables/scripts/ptrepack.py&quot;</span>,<span class="w"> </span>line<span class="w"> </span><span class="m">349</span>,<span class="w"> </span><span class="k">in</span><span class="w"> </span>main
+<span class="w">    </span><span class="nv">stats</span><span class="w"> </span><span class="o">=</span><span class="w"> </span>stats,<span class="w"> </span><span class="nv">start</span><span class="w"> </span><span class="o">=</span><span class="w"> </span>start,<span class="w"> </span><span class="nv">stop</span><span class="w"> </span><span class="o">=</span><span class="w"> </span>stop,<span class="w"> </span><span class="nv">step</span><span class="w"> </span><span class="o">=</span><span class="w"> </span>step<span class="o">)</span>
+<span class="w">  </span>File<span class="w"> </span><span class="s2">&quot;.../tables/scripts/ptrepack.py&quot;</span>,<span class="w"> </span>line<span class="w"> </span><span class="m">107</span>,<span class="w"> </span><span class="k">in</span><span class="w"> </span>copy_leaf
+<span class="w">    </span>raise<span class="w"> </span>RuntimeError,<span class="w"> </span><span class="s2">&quot;Please check that the node names are not</span>
 <span class="s2">    duplicated in destination, and if so, add the --overwrite-nodes flag</span>
 <span class="s2">    if desired.&quot;</span>
-RuntimeError: Please check that the node names are not duplicated <span class="k">in</span>
-destination, and <span class="k">if</span> so, add the --overwrite-nodes flag <span class="k">if</span> desired.
+RuntimeError:<span class="w"> </span>Please<span class="w"> </span>check<span class="w"> </span>that<span class="w"> </span>the<span class="w"> </span>node<span class="w"> </span>names<span class="w"> </span>are<span class="w"> </span>not<span class="w"> </span>duplicated<span class="w"> </span><span class="k">in</span>
+destination,<span class="w"> </span>and<span class="w"> </span><span class="k">if</span><span class="w"> </span>so,<span class="w"> </span>add<span class="w"> </span>the<span class="w"> </span>--overwrite-nodes<span class="w"> </span>flag<span class="w"> </span><span class="k">if</span><span class="w"> </span>desired.
 </pre></div>
 </div>
 <p>Ooops! We ran into problems: we forgot that the /rawdata pathname already
 existed in destination file. Let’s add the –overwrite-nodes, as the verbose
 error suggested:</p>
-<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$ ptrepack --overwrite-nodes --complevel<span class="o">=</span><span class="m">1</span> tutorial1.h5:/detector/readout
+<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$<span class="w"> </span>ptrepack<span class="w"> </span>--overwrite-nodes<span class="w"> </span>--complevel<span class="o">=</span><span class="m">1</span><span class="w"> </span>tutorial1.h5:/detector/readout
 reduced.h5:/rawdata
-$ ptdump reduced.h5
-/ <span class="o">(</span>RootGroup<span class="o">)</span> <span class="s1">&#39;&#39;</span>
-/rawdata <span class="o">(</span>Table<span class="o">(</span><span class="m">10</span>,<span class="o">)</span>, shuffle, zlib<span class="o">(</span><span class="m">1</span><span class="o">))</span> <span class="s1">&#39;Readout example&#39;</span>
-/columns <span class="o">(</span>Group<span class="o">)</span> <span class="s1">&#39;&#39;</span>
-/columns/name <span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span> <span class="s1">&#39;Name column selection&#39;</span>
-/columns/pressure <span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span> <span class="s1">&#39;Pressure column selection&#39;</span>
+$<span class="w"> </span>ptdump<span class="w"> </span>reduced.h5
+/<span class="w"> </span><span class="o">(</span>RootGroup<span class="o">)</span><span class="w"> </span><span class="s1">&#39;&#39;</span>
+/rawdata<span class="w"> </span><span class="o">(</span>Table<span class="o">(</span><span class="m">10</span>,<span class="o">)</span>,<span class="w"> </span>shuffle,<span class="w"> </span>zlib<span class="o">(</span><span class="m">1</span><span class="o">))</span><span class="w"> </span><span class="s1">&#39;Readout example&#39;</span>
+/columns<span class="w"> </span><span class="o">(</span>Group<span class="o">)</span><span class="w"> </span><span class="s1">&#39;&#39;</span>
+/columns/name<span class="w"> </span><span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span><span class="w"> </span><span class="s1">&#39;Name column selection&#39;</span>
+/columns/pressure<span class="w"> </span><span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span><span class="w"> </span><span class="s1">&#39;Pressure column selection&#39;</span>
 </pre></div>
 </div>
 <p>you can check how the filter properties has been changed for the /rawdata
 table. Check as the other nodes still exists.</p>
 <p>Finally, let’s copy a <em>slice</em> of the readout table in origin to destination,
 under a new group called /slices and with the name, for example, aslice:</p>
-<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$ ptrepack -R1,8,3 tutorial1.h5:/detector/readout reduced.h5:/slices/aslice
-$ ptdump reduced.h5
-/ <span class="o">(</span>RootGroup<span class="o">)</span> <span class="s1">&#39;&#39;</span>
-/rawdata <span class="o">(</span>Table<span class="o">(</span><span class="m">10</span>,<span class="o">)</span>, shuffle, zlib<span class="o">(</span><span class="m">1</span><span class="o">))</span> <span class="s1">&#39;Readout example&#39;</span>
-/columns <span class="o">(</span>Group<span class="o">)</span> <span class="s1">&#39;&#39;</span>
-/columns/name <span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span> <span class="s1">&#39;Name column selection&#39;</span>
-/columns/pressure <span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span> <span class="s1">&#39;Pressure column selection&#39;</span>
-/slices <span class="o">(</span>Group<span class="o">)</span> <span class="s1">&#39;&#39;</span>
-/slices/aslice <span class="o">(</span>Table<span class="o">(</span><span class="m">3</span>,<span class="o">))</span> <span class="s1">&#39;Readout example&#39;</span>
+<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>$<span class="w"> </span>ptrepack<span class="w"> </span>-R1,8,3<span class="w"> </span>tutorial1.h5:/detector/readout<span class="w"> </span>reduced.h5:/slices/aslice
+$<span class="w"> </span>ptdump<span class="w"> </span>reduced.h5
+/<span class="w"> </span><span class="o">(</span>RootGroup<span class="o">)</span><span class="w"> </span><span class="s1">&#39;&#39;</span>
+/rawdata<span class="w"> </span><span class="o">(</span>Table<span class="o">(</span><span class="m">10</span>,<span class="o">)</span>,<span class="w"> </span>shuffle,<span class="w"> </span>zlib<span class="o">(</span><span class="m">1</span><span class="o">))</span><span class="w"> </span><span class="s1">&#39;Readout example&#39;</span>
+/columns<span class="w"> </span><span class="o">(</span>Group<span class="o">)</span><span class="w"> </span><span class="s1">&#39;&#39;</span>
+/columns/name<span class="w"> </span><span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span><span class="w"> </span><span class="s1">&#39;Name column selection&#39;</span>
+/columns/pressure<span class="w"> </span><span class="o">(</span>Array<span class="o">(</span><span class="m">3</span>,<span class="o">))</span><span class="w"> </span><span class="s1">&#39;Pressure column selection&#39;</span>
+/slices<span class="w"> </span><span class="o">(</span>Group<span class="o">)</span><span class="w"> </span><span class="s1">&#39;&#39;</span>
+/slices/aslice<span class="w"> </span><span class="o">(</span>Table<span class="o">(</span><span class="m">3</span>,<span class="o">))</span><span class="w"> </span><span class="s1">&#39;Readout example&#39;</span>
 </pre></div>
 </div>
 <p>note how only 3 rows of the original readout table has been copied to the new
@@ -497,32 +502,32 @@ <h2>pt2to3<a class="headerlink" href="#pt2to3" title="Permalink to this heading"
 was implemented using regular expressions rather than a fancier AST-based
 method. By using regexes, <code class="docutils literal notranslate"><span class="pre">pt2to3</span></code> works on Python and Cython code.</p>
 <p><code class="docutils literal notranslate"><span class="pre">pt2to3</span></code> <strong>help:</strong></p>
-<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>usage: pt2to3 <span class="o">[</span>-h<span class="o">]</span> <span class="o">[</span>-r<span class="o">]</span> <span class="o">[</span>-p<span class="o">]</span> <span class="o">[</span>-o OUTPUT<span class="o">]</span> <span class="o">[</span>-i<span class="o">]</span> filename
+<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>usage:<span class="w"> </span>pt2to3<span class="w"> </span><span class="o">[</span>-h<span class="o">]</span><span class="w"> </span><span class="o">[</span>-r<span class="o">]</span><span class="w"> </span><span class="o">[</span>-p<span class="o">]</span><span class="w"> </span><span class="o">[</span>-o<span class="w"> </span>OUTPUT<span class="o">]</span><span class="w"> </span><span class="o">[</span>-i<span class="o">]</span><span class="w"> </span>filename
 
-PyTables <span class="m">2</span>.x -&gt; <span class="m">3</span>.x API transition tool This tool displays to standard out, so
-it is common to pipe this to another file: $ pt2to3 oldfile.py &gt; newfile.py
+PyTables<span class="w"> </span><span class="m">2</span>.x<span class="w"> </span>-&gt;<span class="w"> </span><span class="m">3</span>.x<span class="w"> </span>API<span class="w"> </span>transition<span class="w"> </span>tool<span class="w"> </span>This<span class="w"> </span>tool<span class="w"> </span>displays<span class="w"> </span>to<span class="w"> </span>standard<span class="w"> </span>out,<span class="w"> </span>so
+it<span class="w"> </span>is<span class="w"> </span>common<span class="w"> </span>to<span class="w"> </span>pipe<span class="w"> </span>this<span class="w"> </span>to<span class="w"> </span>another<span class="w"> </span>file:<span class="w"> </span>$<span class="w"> </span>pt2to3<span class="w"> </span>oldfile.py<span class="w"> </span>&gt;<span class="w"> </span>newfile.py
 
-positional arguments:
-  filename              path to input file.
+positional<span class="w"> </span>arguments:
+<span class="w">  </span>filename<span class="w">              </span>path<span class="w"> </span>to<span class="w"> </span>input<span class="w"> </span>file.
 
-optional arguments:
-  -h, --help            show this <span class="nb">help</span> message and <span class="nb">exit</span>
-  -r, --reverse         reverts changes, going from <span class="m">3</span>.x -&gt; <span class="m">2</span>.x.
-  -p, --no-ignore-previous
-                        ignores previous_api<span class="o">()</span> calls.
-  -o OUTPUT             output file to write to.
-  -i, --inplace         overwrites the file <span class="k">in</span>-place.
+optional<span class="w"> </span>arguments:
+<span class="w">  </span>-h,<span class="w"> </span>--help<span class="w">            </span>show<span class="w"> </span>this<span class="w"> </span><span class="nb">help</span><span class="w"> </span>message<span class="w"> </span>and<span class="w"> </span><span class="nb">exit</span>
+<span class="w">  </span>-r,<span class="w"> </span>--reverse<span class="w">         </span>reverts<span class="w"> </span>changes,<span class="w"> </span>going<span class="w"> </span>from<span class="w"> </span><span class="m">3</span>.x<span class="w"> </span>-&gt;<span class="w"> </span><span class="m">2</span>.x.
+<span class="w">  </span>-p,<span class="w"> </span>--no-ignore-previous
+<span class="w">                        </span>ignores<span class="w"> </span>previous_api<span class="o">()</span><span class="w"> </span>calls.
+<span class="w">  </span>-o<span class="w"> </span>OUTPUT<span class="w">             </span>output<span class="w"> </span>file<span class="w"> </span>to<span class="w"> </span>write<span class="w"> </span>to.
+<span class="w">  </span>-i,<span class="w"> </span>--inplace<span class="w">         </span>overwrites<span class="w"> </span>the<span class="w"> </span>file<span class="w"> </span><span class="k">in</span>-place.
 </pre></div>
 </div>
 <p>Note that <code class="docutils literal notranslate"><span class="pre">pt2to3</span></code> only works on a single file, not a a directory.  However,
 a simple BASH script may be written to run <code class="docutils literal notranslate"><span class="pre">pt2to3</span></code> over an entire directory
 and all sub-directories:</p>
 <div class="highlight-bash notranslate"><div class="highlight"><pre><span></span><span class="ch">#!/bin/bash</span>
-<span class="k">for</span> f <span class="k">in</span> <span class="k">$(</span>find .<span class="k">)</span>
+<span class="k">for</span><span class="w"> </span>f<span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="k">$(</span>find<span class="w"> </span>.<span class="k">)</span>
 <span class="k">do</span>
-    <span class="nb">echo</span> <span class="nv">$f</span>
-    pt2to3 <span class="nv">$f</span> &gt; temp.txt
-    mv temp.txt <span class="nv">$f</span>
+<span class="w">    </span><span class="nb">echo</span><span class="w"> </span><span class="nv">$f</span>
+<span class="w">    </span>pt2to3<span class="w"> </span><span class="nv">$f</span><span class="w"> </span>&gt;<span class="w"> </span>temp.txt
+<span class="w">    </span>mv<span class="w"> </span>temp.txt<span class="w"> </span><span class="nv">$f</span>
 <span class="k">done</span>
 </pre></div>
 </div>
