diff --git a/doc/usage/extensions/example_google.py b/doc/usage/extensions/example_google.py
index e4f65ec03..05183af12 100644
--- a/doc/usage/extensions/example_google.py
+++ b/doc/usage/extensions/example_google.py
@@ -111,7 +111,7 @@ def module_level_function(param1, param2=None, *args, **kwargs):
 
             {
                 'param1': param1,
-                'param2': param2
+                'param2': param2,
             }
 
     Raises:
diff --git a/doc/usage/extensions/example_numpy.py b/doc/usage/extensions/example_numpy.py
index 662cabae1..3bfc4dfcb 100644
--- a/doc/usage/extensions/example_numpy.py
+++ b/doc/usage/extensions/example_numpy.py
@@ -141,7 +141,7 @@ def module_level_function(param1, param2=None, *args, **kwargs):
 
             {
                 'param1': param1,
-                'param2': param2
+                'param2': param2,
             }
 
     Raises
diff --git a/sphinx/application.py b/sphinx/application.py
index 2b80e1ab8..4c2e7c544 100644
--- a/sphinx/application.py
+++ b/sphinx/application.py
@@ -995,10 +995,11 @@ class Sphinx:
 
         .. code-block:: python
 
-           class math(docutils.nodes.Element): pass
+           class math(docutils.nodes.Element): ...
 
            def visit_math_html(self, node):
                self.body.append(self.starttag(node, 'math'))
+
            def depart_math_html(self, node):
                self.body.append('</math>')
 
@@ -1089,7 +1090,7 @@ class Sphinx:
                }
 
                def run(self):
-                   ...
+                   pass
 
            def setup(app):
                app.add_directive('my-directive', MyDirective)
@@ -1347,8 +1348,9 @@ class Sphinx:
         to them using custom roles instead of generic ones (like
         :rst:role:`ref`).  Example call::
 
-           app.add_crossref_type('topic', 'topic', 'single: %s',
-                                 docutils.nodes.emphasis)
+           app.add_crossref_type(
+               'topic', 'topic', 'single: %s', docutils.nodes.emphasis
+           )
 
         Example usage::
 
@@ -1458,7 +1460,7 @@ class Sphinx:
             app.add_js_file('example.js')
             # => <script src="_static/example.js"></script>
 
-            app.add_js_file('example.js', loading_method="async")
+            app.add_js_file('example.js', loading_method='async')
             # => <script src="_static/example.js" async="async"></script>
 
             app.add_js_file(None, body="var myVariable = 'foo';")
diff --git a/sphinx/ext/autodoc/__init__.py b/sphinx/ext/autodoc/__init__.py
index 2ec2aae73..605b9a9c0 100644
--- a/sphinx/ext/autodoc/__init__.py
+++ b/sphinx/ext/autodoc/__init__.py
@@ -197,6 +197,7 @@ def cut_lines(
     Use like this (e.g. in the ``setup()`` function of :file:`conf.py`)::
 
        from sphinx.ext.autodoc import cut_lines
+
        app.connect('autodoc-process-docstring', cut_lines(4, what={'module'}))
 
     This can (and should) be used in place of :confval:`automodule_skip_lines`.
diff --git a/sphinx/pycode/parser.py b/sphinx/pycode/parser.py
index 3ff98bf79..34d30200f 100644
--- a/sphinx/pycode/parser.py
+++ b/sphinx/pycode/parser.py
@@ -43,7 +43,7 @@ def get_lvar_names(node: ast.AST, self: ast.arg | None = None) -> list[str]:
     This raises `TypeError` if the assignment does not create new variable::
 
         ary[0] = 'foo'
-        dic["bar"] = 'baz'
+        dic['bar'] = 'baz'
         # => TypeError
     """
     if self: