diff --git a/00-before-we-start.html b/00-before-we-start.html
index 1d941bc29..66a54822b 100644
--- a/00-before-we-start.html
+++ b/00-before-we-start.html
@@ -665,7 +665,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/00-before-we-start.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-06-05",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/01-short-introduction-to-Python.html b/01-short-introduction-to-Python.html
index e74a4cb25..64de294db 100644
--- a/01-short-introduction-to-Python.html
+++ b/01-short-introduction-to-Python.html
@@ -1016,7 +1016,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/01-short-introduction-to-Python.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-06-13",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/02-starting-with-data.html b/02-starting-with-data.html
index 088fae536..5c291f0e2 100644
--- a/02-starting-with-data.html
+++ b/02-starting-with-data.html
@@ -1348,7 +1348,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/02-starting-with-data.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-05-29",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/03-index-slice-subset.html b/03-index-slice-subset.html
index 034ea7e47..f52f56aaf 100644
--- a/03-index-slice-subset.html
+++ b/03-index-slice-subset.html
@@ -519,7 +519,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li><p><code>a[0]</code> returns <code>1</code>, as Python starts with
 element 0 (this may be different from what you have previously
@@ -787,7 +787,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Selection Challenges
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>
 <ul><li>
@@ -945,7 +945,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>
 <div class="codewrapper sourceCode" id="cb32">
@@ -1138,7 +1138,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>
 <div class="codewrapper sourceCode" id="cb47">
@@ -1256,7 +1256,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/03-index-slice-subset.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-08-18",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/04-data-types-and-format.html b/04-data-types-and-format.html
index 21a52fa25..05d22b0c3 100644
--- a/04-data-types-and-format.html
+++ b/04-data-types-and-format.html
@@ -944,7 +944,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/04-data-types-and-format.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-06-05",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/05-merging-data.html b/05-merging-data.html
index 256e4e0ad..5a3782d2c 100644
--- a/05-merging-data.html
+++ b/05-merging-data.html
@@ -496,7 +496,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb9">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -835,7 +835,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb25">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -900,7 +900,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li><div class="codewrapper sourceCode" id="cb31">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1015,7 +1015,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/05-merging-data.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-05-19",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/06-loops-and-functions.html b/06-loops-and-functions.html
index 70c290234..5a99d8fc2 100644
--- a/06-loops-and-functions.html
+++ b/06-loops-and-functions.html
@@ -437,7 +437,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>
 <div class="codewrapper sourceCode" id="cb9">
@@ -695,7 +695,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li><div class="codewrapper sourceCode" id="cb27">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -819,7 +819,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>
 <p>For example, using an integer and a string:</p>
@@ -1086,7 +1086,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li><div class="codewrapper sourceCode" id="cb55">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1282,7 +1282,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>
 <div class="codewrapper sourceCode" id="cb62">
@@ -1495,7 +1495,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li><div class="codewrapper sourceCode" id="cb75">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1714,7 +1714,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/06-loops-and-functions.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-05-18",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/07-visualization-ggplot-python.html b/07-visualization-ggplot-python.html
index 9728a2cf1..c4e2b3cdf 100644
--- a/07-visualization-ggplot-python.html
+++ b/07-visualization-ggplot-python.html
@@ -1053,7 +1053,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/07-visualization-ggplot-python.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-05-19",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/08-putting-it-all-together.html b/08-putting-it-all-together.html
index e727d7eac..5b22d0c5d 100644
--- a/08-putting-it-all-together.html
+++ b/08-putting-it-all-together.html
@@ -822,7 +822,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/08-putting-it-all-together.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-05-08",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/09-working-with-sql.html b/09-working-with-sql.html
index c5e81cc9c..fccdc1a68 100644
--- a/09-working-with-sql.html
+++ b/09-working-with-sql.html
@@ -457,7 +457,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>
 <div class="codewrapper sourceCode" id="cb4">
@@ -587,7 +587,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li><div class="codewrapper sourceCode" id="cb9">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -702,7 +702,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/09-working-with-sql.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-05-18",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/404.html b/404.html
index c611443c0..e877ca3e1 100644
--- a/404.html
+++ b/404.html
@@ -355,8 +355,8 @@ <h1>Page not found</h1>
   "url": "https://datacarpentry.github.io/python-ecology-lesson/404.html",
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/404.html",
   "dateCreated": "2015-03-19",
-  "dateModified": "2023-10-24",
-  "datePublished": "2023-10-24"
+  "dateModified": "2023-10-31",
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/CODE_OF_CONDUCT.html b/CODE_OF_CONDUCT.html
index c056bd691..d961544d4 100644
--- a/CODE_OF_CONDUCT.html
+++ b/CODE_OF_CONDUCT.html
@@ -365,7 +365,7 @@ <h1>Contributor Code of Conduct</h1>
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/CODE_OF_CONDUCT.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-05-08",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/CONTRIBUTORS.html b/CONTRIBUTORS.html
index 4bcf28302..1c257d7cc 100644
--- a/CONTRIBUTORS.html
+++ b/CONTRIBUTORS.html
@@ -400,7 +400,7 @@ <h1>About Contributors</h1>
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/CONTRIBUTORS.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-05-08",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/LICENSE.html b/LICENSE.html
index e5497a06c..afd2c2d48 100644
--- a/LICENSE.html
+++ b/LICENSE.html
@@ -416,7 +416,7 @@ <h1>Licenses</h1>
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/LICENSE.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-05-08",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/aio.html b/aio.html
index 8a19e5ed5..1395ef890 100644
--- a/aio.html
+++ b/aio.html
@@ -2663,7 +2663,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li><p><code>a[0]</code> returns <code>1</code>, as Python starts with
@@ -2946,7 +2946,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Selection Challenges
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>
@@ -3119,7 +3119,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>
@@ -3319,7 +3319,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>
@@ -4196,7 +4196,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb9">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -4548,7 +4548,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb25">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -4620,7 +4620,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li><div class="codewrapper sourceCode" id="cb31">
@@ -4821,7 +4821,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>
@@ -5087,7 +5087,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li><div class="codewrapper sourceCode" id="cb27">
@@ -5216,7 +5216,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>
@@ -5487,7 +5487,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li><div class="codewrapper sourceCode" id="cb55">
@@ -5687,7 +5687,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>
@@ -5905,7 +5905,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li><div class="codewrapper sourceCode" id="cb75">
@@ -7429,7 +7429,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>
@@ -7564,7 +7564,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li><div class="codewrapper sourceCode" id="cb9">
@@ -7672,8 +7672,8 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://datacarpentry.github.io/python-ecology-lesson/aio.html",
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/aio.html",
   "dateCreated": "2015-03-19",
-  "dateModified": "2023-10-24",
-  "datePublished": "2023-10-24"
+  "dateModified": "2023-10-31",
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/discuss.html b/discuss.html
index a56d505e9..bf9815dec 100644
--- a/discuss.html
+++ b/discuss.html
@@ -358,7 +358,7 @@ <h1>Discussion</h1>
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/discuss.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-05-08",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/extra_challenges.html b/extra_challenges.html
index 91e2612ae..4dca843a9 100644
--- a/extra_challenges.html
+++ b/extra_challenges.html
@@ -458,7 +458,7 @@ <h4 class="accordion-header" id="headingSolution2">
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/extra_challenges.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-05-18",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/images.html b/images.html
index 22d5bd7bd..5d1b2e1c9 100644
--- a/images.html
+++ b/images.html
@@ -526,8 +526,8 @@ <h3 id="08-putting-it-all-together-figure-6">Figure 6</h3>
   "url": "https://datacarpentry.github.io/python-ecology-lesson/images.html",
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/images.html",
   "dateCreated": "2015-03-19",
-  "dateModified": "2023-10-24",
-  "datePublished": "2023-10-24"
+  "dateModified": "2023-10-31",
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/index.html b/index.html
index 21fa38f9e..6a8919f75 100644
--- a/index.html
+++ b/index.html
@@ -638,8 +638,8 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
   "url": "https://datacarpentry.github.io/python-ecology-lesson/index.html",
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/index.html",
   "dateCreated": "2015-03-19",
-  "dateModified": "2023-10-24",
-  "datePublished": "2023-10-24"
+  "dateModified": "2023-10-31",
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/instructor-notes.html b/instructor-notes.html
index b3a176bdf..f3f2e467f 100644
--- a/instructor-notes.html
+++ b/instructor-notes.html
@@ -465,8 +465,8 @@ <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"><
   "url": "https://datacarpentry.github.io/python-ecology-lesson/instructor-notes.html",
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/instructor-notes.html",
   "dateCreated": "2015-03-19",
-  "dateModified": "2023-10-24",
-  "datePublished": "2023-10-24"
+  "dateModified": "2023-10-31",
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/instructor/00-before-we-start.html b/instructor/00-before-we-start.html
index 8779ec877..4d5e06d0c 100644
--- a/instructor/00-before-we-start.html
+++ b/instructor/00-before-we-start.html
@@ -667,7 +667,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/instructor/00-before-we-start.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-06-05",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/instructor/01-short-introduction-to-Python.html b/instructor/01-short-introduction-to-Python.html
index 0c312abd2..da83a0cfd 100644
--- a/instructor/01-short-introduction-to-Python.html
+++ b/instructor/01-short-introduction-to-Python.html
@@ -1045,7 +1045,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/instructor/01-short-introduction-to-Python.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-06-13",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/instructor/02-starting-with-data.html b/instructor/02-starting-with-data.html
index 69a372aad..359e788be 100644
--- a/instructor/02-starting-with-data.html
+++ b/instructor/02-starting-with-data.html
@@ -1391,7 +1391,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/instructor/02-starting-with-data.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-05-29",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/instructor/03-index-slice-subset.html b/instructor/03-index-slice-subset.html
index efa226089..6d5637f90 100644
--- a/instructor/03-index-slice-subset.html
+++ b/instructor/03-index-slice-subset.html
@@ -361,7 +361,7 @@ <h3 class="accordion-header" id="headingInstructor1">
   Instructor Note
   </h3>
 </button>
-<div id="collapseInstructor1" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor1" aria-labelledby="headingInstructor1">
+<div id="collapseInstructor1" class="accordion-collapse collapse" aria-labelledby="headingInstructor1" data-bs-parent="#accordionInstructor1">
 <div class="accordion-body">
 <p>Tip: use <code>.head()</code> method throughout this lesson to keep
 your display neater for students. Encourage students to try with and
@@ -541,7 +541,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li><p><code>a[0]</code> returns <code>1</code>, as Python starts with
 element 0 (this may be different from what you have previously
@@ -809,7 +809,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Selection Challenges
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>
 <ul><li>
@@ -967,7 +967,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>
 <div class="codewrapper sourceCode" id="cb32">
@@ -1060,7 +1060,7 @@ <h3 class="accordion-header" id="headingInstructor2">
   Instructor Note
   </h3>
 </button>
-<div id="collapseInstructor2" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor2" aria-labelledby="headingInstructor2">
+<div id="collapseInstructor2" class="accordion-collapse collapse" aria-labelledby="headingInstructor2" data-bs-parent="#accordionInstructor2">
 <div class="accordion-body">
 <p>When working through the solutions to the challenges above, you could
 introduce already that all these slice operations are actually based on
@@ -1178,7 +1178,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>
 <div class="codewrapper sourceCode" id="cb47">
@@ -1226,7 +1226,7 @@ <h3 class="accordion-header" id="headingInstructor3">
   Instructor Note
   </h3>
 </button>
-<div id="collapseInstructor3" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor3" aria-labelledby="headingInstructor3">
+<div id="collapseInstructor3" class="accordion-collapse collapse" aria-labelledby="headingInstructor3" data-bs-parent="#accordionInstructor3">
 <div class="accordion-body">
 <p>Referring to the challenge solution above, as we know the other
 values are all Nan values, we could also select all not null values:</p>
@@ -1326,7 +1326,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/instructor/03-index-slice-subset.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-08-18",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/instructor/04-data-types-and-format.html b/instructor/04-data-types-and-format.html
index 537978856..f01367646 100644
--- a/instructor/04-data-types-and-format.html
+++ b/instructor/04-data-types-and-format.html
@@ -963,7 +963,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/instructor/04-data-types-and-format.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-06-05",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/instructor/05-merging-data.html b/instructor/05-merging-data.html
index 26c18a58c..8578f45eb 100644
--- a/instructor/05-merging-data.html
+++ b/instructor/05-merging-data.html
@@ -498,7 +498,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb9">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -837,7 +837,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb25">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -882,7 +882,7 @@ <h3 class="accordion-header" id="headingInstructor1">
   Suggestion (for discussion only)
   </h3>
 </button>
-<div id="collapseInstructor1" class="accordion-collapse collapse" aria-labelledby="headingInstructor1" data-bs-parent="#accordionInstructor1">
+<div id="collapseInstructor1" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor1" aria-labelledby="headingInstructor1">
 <div class="accordion-body">
 <p>The number of individuals for each taxa in each plot per sex can be
 derived as well.</p>
@@ -945,7 +945,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li><div class="codewrapper sourceCode" id="cb31">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1060,7 +1060,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/instructor/05-merging-data.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-05-19",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/instructor/06-loops-and-functions.html b/instructor/06-loops-and-functions.html
index e0b612894..437da8e9a 100644
--- a/instructor/06-loops-and-functions.html
+++ b/instructor/06-loops-and-functions.html
@@ -439,7 +439,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>
 <div class="codewrapper sourceCode" id="cb9">
@@ -697,7 +697,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li><div class="codewrapper sourceCode" id="cb27">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -800,7 +800,7 @@ <h3 class="accordion-header" id="headingInstructor1">
   Instructor Note
   </h3>
 </button>
-<div id="collapseInstructor1" class="accordion-collapse collapse" aria-labelledby="headingInstructor1" data-bs-parent="#accordionInstructor1">
+<div id="collapseInstructor1" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor1" aria-labelledby="headingInstructor1">
 <div class="accordion-body">
 <p>When teaching the challenge below, demonstrating the results in a
 debugging environment can make function scope more clear.</p>
@@ -836,7 +836,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>
 <p>For example, using an integer and a string:</p>
@@ -1103,7 +1103,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li><div class="codewrapper sourceCode" id="cb55">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1299,7 +1299,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>
 <div class="codewrapper sourceCode" id="cb62">
@@ -1512,7 +1512,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li><div class="codewrapper sourceCode" id="cb75">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -1731,7 +1731,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/instructor/06-loops-and-functions.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-05-18",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/instructor/07-visualization-ggplot-python.html b/instructor/07-visualization-ggplot-python.html
index d56854dea..3cdd2e583 100644
--- a/instructor/07-visualization-ggplot-python.html
+++ b/instructor/07-visualization-ggplot-python.html
@@ -1094,7 +1094,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/instructor/07-visualization-ggplot-python.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-05-19",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/instructor/08-putting-it-all-together.html b/instructor/08-putting-it-all-together.html
index 564be39e9..da10c56f8 100644
--- a/instructor/08-putting-it-all-together.html
+++ b/instructor/08-putting-it-all-together.html
@@ -824,7 +824,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/instructor/08-putting-it-all-together.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-05-08",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/instructor/09-working-with-sql.html b/instructor/09-working-with-sql.html
index 1f2bbbbbc..b6b364a07 100644
--- a/instructor/09-working-with-sql.html
+++ b/instructor/09-working-with-sql.html
@@ -459,7 +459,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>
 <div class="codewrapper sourceCode" id="cb4">
@@ -589,7 +589,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li><div class="codewrapper sourceCode" id="cb9">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -704,7 +704,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/instructor/09-working-with-sql.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-05-18",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/instructor/404.html b/instructor/404.html
index 72c92e433..922e8f6b7 100644
--- a/instructor/404.html
+++ b/instructor/404.html
@@ -355,8 +355,8 @@ <h1>Page not found</h1>
   "url": "https://datacarpentry.github.io/python-ecology-lesson/instructor/404.html",
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/instructor/404.html",
   "dateCreated": "2015-03-19",
-  "dateModified": "2023-10-24",
-  "datePublished": "2023-10-24"
+  "dateModified": "2023-10-31",
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/instructor/CODE_OF_CONDUCT.html b/instructor/CODE_OF_CONDUCT.html
index b3e0b0678..c116db1f2 100644
--- a/instructor/CODE_OF_CONDUCT.html
+++ b/instructor/CODE_OF_CONDUCT.html
@@ -367,7 +367,7 @@ <h1>Contributor Code of Conduct</h1>
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/instructor/CODE_OF_CONDUCT.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-05-08",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/instructor/CONTRIBUTORS.html b/instructor/CONTRIBUTORS.html
index 47b3574ec..afdc625ba 100644
--- a/instructor/CONTRIBUTORS.html
+++ b/instructor/CONTRIBUTORS.html
@@ -402,7 +402,7 @@ <h1>About Contributors</h1>
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/instructor/CONTRIBUTORS.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-05-08",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/instructor/LICENSE.html b/instructor/LICENSE.html
index 8698b04c8..9b5bb0744 100644
--- a/instructor/LICENSE.html
+++ b/instructor/LICENSE.html
@@ -418,7 +418,7 @@ <h1>Licenses</h1>
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/instructor/LICENSE.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-05-08",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/instructor/aio.html b/instructor/aio.html
index 9ca34e74c..ae581202b 100644
--- a/instructor/aio.html
+++ b/instructor/aio.html
@@ -2564,7 +2564,7 @@ <h3 class="accordion-header" id="headingInstructor1">
   Instructor Note
   </h3>
 </button>
-<div id="collapseInstructor1" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor1" aria-labelledby="headingInstructor1">
+<div id="collapseInstructor1" class="accordion-collapse collapse" aria-labelledby="headingInstructor1" data-bs-parent="#accordionInstructor1">
 <div class="accordion-body">
 <p>Tip: use <code>.head()</code> method throughout this lesson to keep
 your display neater for students. Encourage students to try with and
@@ -2754,7 +2754,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li><p><code>a[0]</code> returns <code>1</code>, as Python starts with
@@ -3037,7 +3037,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Selection Challenges
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>
@@ -3210,7 +3210,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>
@@ -3305,7 +3305,7 @@ <h3 class="accordion-header" id="headingInstructor2">
   Instructor Note
   </h3>
 </button>
-<div id="collapseInstructor2" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor2" aria-labelledby="headingInstructor2">
+<div id="collapseInstructor2" class="accordion-collapse collapse" aria-labelledby="headingInstructor2" data-bs-parent="#accordionInstructor2">
 <div class="accordion-body">
 <p>When working through the solutions to the challenges above, you could
 introduce already that all these slice operations are actually based on
@@ -3428,7 +3428,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>
@@ -3478,7 +3478,7 @@ <h3 class="accordion-header" id="headingInstructor3">
   Instructor Note
   </h3>
 </button>
-<div id="collapseInstructor3" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor3" aria-labelledby="headingInstructor3">
+<div id="collapseInstructor3" class="accordion-collapse collapse" aria-labelledby="headingInstructor3" data-bs-parent="#accordionInstructor3">
 <div class="accordion-body">
 <p>Referring to the challenge solution above, as we know the other
 values are all Nan values, we could also select all not null values:</p>
@@ -4354,7 +4354,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb9">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -4706,7 +4706,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb25">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -4756,7 +4756,7 @@ <h3 class="accordion-header" id="headingInstructor1">
   Suggestion (for discussion only)
   </h3>
 </button>
-<div id="collapseInstructor1" class="accordion-collapse collapse" aria-labelledby="headingInstructor1" data-bs-parent="#accordionInstructor1">
+<div id="collapseInstructor1" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor1" aria-labelledby="headingInstructor1">
 <div class="accordion-body">
 <p>The number of individuals for each taxa in each plot per sex can be
 derived as well.</p>
@@ -4821,7 +4821,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li><div class="codewrapper sourceCode" id="cb31">
@@ -5023,7 +5023,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>
@@ -5289,7 +5289,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li><div class="codewrapper sourceCode" id="cb27">
@@ -5395,7 +5395,7 @@ <h3 class="accordion-header" id="headingInstructor1">
   Instructor Note
   </h3>
 </button>
-<div id="collapseInstructor1" class="accordion-collapse collapse" aria-labelledby="headingInstructor1" data-bs-parent="#accordionInstructor1">
+<div id="collapseInstructor1" class="accordion-collapse collapse" data-bs-parent="#accordionInstructor1" aria-labelledby="headingInstructor1">
 <div class="accordion-body">
 <p>When teaching the challenge below, demonstrating the results in a
 debugging environment can make function scope more clear.</p>
@@ -5433,7 +5433,7 @@ <h4 class="accordion-header" id="headingSolution3">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution3" class="accordion-collapse collapse" aria-labelledby="headingSolution3" data-bs-parent="#accordionSolution3">
+<div id="collapseSolution3" class="accordion-collapse collapse" data-bs-parent="#accordionSolution3" aria-labelledby="headingSolution3">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>
@@ -5704,7 +5704,7 @@ <h4 class="accordion-header" id="headingSolution4">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution4" class="accordion-collapse collapse" aria-labelledby="headingSolution4" data-bs-parent="#accordionSolution4">
+<div id="collapseSolution4" class="accordion-collapse collapse" data-bs-parent="#accordionSolution4" aria-labelledby="headingSolution4">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li><div class="codewrapper sourceCode" id="cb55">
@@ -5904,7 +5904,7 @@ <h4 class="accordion-header" id="headingSolution5">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution5" class="accordion-collapse collapse" aria-labelledby="headingSolution5" data-bs-parent="#accordionSolution5">
+<div id="collapseSolution5" class="accordion-collapse collapse" data-bs-parent="#accordionSolution5" aria-labelledby="headingSolution5">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>
@@ -6122,7 +6122,7 @@ <h4 class="accordion-header" id="headingSolution6">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution6" class="accordion-collapse collapse" aria-labelledby="headingSolution6" data-bs-parent="#accordionSolution6">
+<div id="collapseSolution6" class="accordion-collapse collapse" data-bs-parent="#accordionSolution6" aria-labelledby="headingSolution6">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li><div class="codewrapper sourceCode" id="cb75">
@@ -7688,7 +7688,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>
@@ -7823,7 +7823,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li><div class="codewrapper sourceCode" id="cb9">
@@ -7931,8 +7931,8 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://datacarpentry.github.io/python-ecology-lesson/instructor/aio.html",
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/instructor/aio.html",
   "dateCreated": "2015-03-19",
-  "dateModified": "2023-10-24",
-  "datePublished": "2023-10-24"
+  "dateModified": "2023-10-31",
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/instructor/discuss.html b/instructor/discuss.html
index 2a2e2aeb7..c18db4119 100644
--- a/instructor/discuss.html
+++ b/instructor/discuss.html
@@ -360,7 +360,7 @@ <h1>Discussion</h1>
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/instructor/discuss.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-05-08",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/instructor/extra_challenges.html b/instructor/extra_challenges.html
index 2be593c7b..a6f5a6f7f 100644
--- a/instructor/extra_challenges.html
+++ b/instructor/extra_challenges.html
@@ -460,7 +460,7 @@ <h4 class="accordion-header" id="headingSolution2">
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/instructor/extra_challenges.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-05-18",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/instructor/images.html b/instructor/images.html
index 4a1aed976..42793725c 100644
--- a/instructor/images.html
+++ b/instructor/images.html
@@ -536,8 +536,8 @@ <h3 id="08-putting-it-all-together-figure-6">Figure 6</h3>
   "url": "https://datacarpentry.github.io/python-ecology-lesson/instructor/images.html",
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/instructor/images.html",
   "dateCreated": "2015-03-19",
-  "dateModified": "2023-10-24",
-  "datePublished": "2023-10-24"
+  "dateModified": "2023-10-31",
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/instructor/index.html b/instructor/index.html
index 496afcac0..fd19f780d 100644
--- a/instructor/index.html
+++ b/instructor/index.html
@@ -744,8 +744,8 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
   "url": "https://datacarpentry.github.io/python-ecology-lesson/instructor/index.html",
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/instructor/index.html",
   "dateCreated": "2015-03-19",
-  "dateModified": "2023-10-24",
-  "datePublished": "2023-10-24"
+  "dateModified": "2023-10-31",
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/instructor/instructor-notes.html b/instructor/instructor-notes.html
index bef66b78a..e6ce0f7b0 100644
--- a/instructor/instructor-notes.html
+++ b/instructor/instructor-notes.html
@@ -631,8 +631,8 @@ <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"><
   "url": "https://datacarpentry.github.io/python-ecology-lesson/instructor/instructor-notes.html",
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/instructor/instructor-notes.html",
   "dateCreated": "2015-03-19",
-  "dateModified": "2023-10-24",
-  "datePublished": "2023-10-24"
+  "dateModified": "2023-10-31",
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/instructor/jupyter_notebooks.html b/instructor/jupyter_notebooks.html
index f8cc89441..b76858596 100644
--- a/instructor/jupyter_notebooks.html
+++ b/instructor/jupyter_notebooks.html
@@ -458,7 +458,7 @@ <h3 id="help-and-more-information">Help and more information<a class="anchor" ar
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/instructor/jupyter_notebooks.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-05-08",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/instructor/key-points.html b/instructor/key-points.html
index a7702cce4..811e91259 100644
--- a/instructor/key-points.html
+++ b/instructor/key-points.html
@@ -495,8 +495,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
   "url": "https://datacarpentry.github.io/python-ecology-lesson/instructor/key-points.html",
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/instructor/key-points.html",
   "dateCreated": "2015-03-19",
-  "dateModified": "2023-10-24",
-  "datePublished": "2023-10-24"
+  "dateModified": "2023-10-31",
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/instructor/profiles.html b/instructor/profiles.html
index 4e5de727c..6a100f93d 100644
--- a/instructor/profiles.html
+++ b/instructor/profiles.html
@@ -316,8 +316,8 @@ <h1>Learner Profiles</h1>
   "url": "https://datacarpentry.github.io/python-ecology-lesson/instructor/profiles.html",
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/instructor/profiles.html",
   "dateCreated": "2015-03-19",
-  "dateModified": "2023-10-24",
-  "datePublished": "2023-10-24"
+  "dateModified": "2023-10-31",
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/instructor/reference.html b/instructor/reference.html
index 8788ceb61..5ac8c87c5 100644
--- a/instructor/reference.html
+++ b/instructor/reference.html
@@ -494,7 +494,7 @@ <h1>Glossary</h1>
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/instructor/reference.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-05-08",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/jupyter_notebooks.html b/jupyter_notebooks.html
index 7f901c860..ef9852630 100644
--- a/jupyter_notebooks.html
+++ b/jupyter_notebooks.html
@@ -456,7 +456,7 @@ <h3 id="help-and-more-information">Help and more information<a class="anchor" ar
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/jupyter_notebooks.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-05-08",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/key-points.html b/key-points.html
index a5a145606..9de67fd5a 100644
--- a/key-points.html
+++ b/key-points.html
@@ -497,8 +497,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
   "url": "https://datacarpentry.github.io/python-ecology-lesson/key-points.html",
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/key-points.html",
   "dateCreated": "2015-03-19",
-  "dateModified": "2023-10-24",
-  "datePublished": "2023-10-24"
+  "dateModified": "2023-10-31",
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/pkgdown.yml b/pkgdown.yml
index df702ed02..aab8f28f3 100644
--- a/pkgdown.yml
+++ b/pkgdown.yml
@@ -2,5 +2,5 @@ pandoc: 2.19.2
 pkgdown: 2.0.7
 pkgdown_sha: ~
 articles: {}
-last_built: 2023-10-24T00:18Z
+last_built: 2023-10-31T00:16Z
 
diff --git a/profiles.html b/profiles.html
index 1381a3b57..ee7a94769 100644
--- a/profiles.html
+++ b/profiles.html
@@ -316,8 +316,8 @@ <h1>Learner Profiles</h1>
   "url": "https://datacarpentry.github.io/python-ecology-lesson/profiles.html",
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/profiles.html",
   "dateCreated": "2015-03-19",
-  "dateModified": "2023-10-24",
-  "datePublished": "2023-10-24"
+  "dateModified": "2023-10-31",
+  "datePublished": "2023-10-31"
 }
 
   </script><script>
diff --git a/reference.html b/reference.html
index a1ca04da9..dd6aa1f8c 100644
--- a/reference.html
+++ b/reference.html
@@ -492,7 +492,7 @@ <h1>Glossary</h1>
   "identifier": "https://datacarpentry.github.io/python-ecology-lesson/reference.html",
   "dateCreated": "2015-03-19",
   "dateModified": "2023-05-08",
-  "datePublished": "2023-10-24"
+  "datePublished": "2023-10-31"
 }
 
   </script><script>