All classes are new-style in Python 3

We no longer need to explictly inherit
from the 'object' class.

tools/build/doxygen_add_nav.py

@@ -86,7 +86,7 @@ def get_page_from_source(source, id_re, id_to_page):
     raise ValueError("Cannot find page id in %s" % source)
 
 
-class Page(object):
+class Page:
     """Representation of a single page in the documentation"""
     def __init__(self, id):
         self.id = id
@@ -148,7 +148,7 @@ def github_edit(self):
                 % (root, os.path.sep.join(sp)))
 
 
-class Docs(object):
+class Docs:
     """Representation of all doxygen documentation"""
 
     def __init__(self, xml_dir, html_dir, top_source_dir, source_subdirs):

tools/build/doxygen_filter_py.py

@@ -212,7 +212,7 @@ def handle_class(c, indent, printer):
     dump_class(c, meths, indent, printer)
 
 
-class OutputPrinter(object):
+class OutputPrinter:
 
     def __init__(self):
         # The number of the next line to be written (1-based)

tools/build/doxygen_spell_check.py

@@ -50,7 +50,7 @@ def _skip(self, word):
                or self._pattern.match(word) is not None
 
 
-class SpellChecker(object):
+class SpellChecker:
     def __init__(self, exceptions_file):
         self.chkr = enchant.checker.SpellChecker(
             "en_US", filters=[EmailFilter, URLFilter, IMPNameFilter])

tools/build/setup.py

@@ -88,7 +88,7 @@ def link_swig(modules):
 
 # Don't link __init__.py from the top-level of any module (it is generated
 # either by SWIG or by make_python_init.py)
-class _ExcludeTopLevelPythonInit(object):
+class _ExcludeTopLevelPythonInit:
     def __init__(self, topdir):
         self.pyinit = os.path.join(topdir, '__init__.py')
 

tools/build/setup_imppy.py

@@ -21,7 +21,7 @@ def uniq(ls):
             yield obj
 
 
-class FileGenerator(object):
+class FileGenerator:
     body = ["@LDPATH@", "", "@PYTHONPATH@", "",
             "# Where to find data for the various modules",
             "@IMP_DATA@", "",

tools/build/tools/__init__.py

@@ -100,7 +100,7 @@ def rewrite(filename, contents, verbose=True):
         fh.write(contents)
 
 
-class FileGenerator(object):
+class FileGenerator:
     """Auto-generate an output file.
        The file is marked as being auto-generated with a suitable comment.
        `template_file` names an input file containing a suitable template
@@ -272,7 +272,7 @@ def link_dir(source_dir, target_dir, match=["*"], exclude=[],
                 os.unlink(ln)
 
 
-class Module(object):
+class Module:
     """An IMP module"""
     _info = None
 
@@ -412,7 +412,7 @@ def _read_dep_file(self, attr):
     python_only = property(lambda self: self._read_dep_file('python_only'))
 
 
-class ModulesFinder(object):
+class ModulesFinder:
     """Class for finding IMP modules.
        Acts like a dict with module names as keys and Module objects as values.