Adding upstream version 7.3.7.upstream/7.3.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

7 files changed, 232 insertions, 126 deletions

diff --git a/sphinx/ext/autodoc/__init__.py b/sphinx/ext/autodoc/__init__.py
index 8d68f72..45e4cad 100644
--- a/sphinx/ext/autodoc/__init__.py
+++ b/sphinx/ext/autodoc/__init__.py
@@ -7,11 +7,13 @@ for those who like elaborate docstrings.
 
 from __future__ import annotations
 
+import functools
+import operator
 import re
 import sys
 import warnings
 from inspect import Parameter, Signature
-from typing import TYPE_CHECKING, Any, Callable, TypeVar
+from typing import TYPE_CHECKING, Any, Callable, ClassVar, TypeVar
 
 from docutils.statemachine import StringList
 
@@ -31,7 +33,13 @@ from sphinx.util.inspect import (
     safe_getattr,
     stringify_signature,
 )
-from sphinx.util.typing import OptionSpec, get_type_hints, restify, stringify_annotation
+from sphinx.util.typing import (
+    ExtensionMetadata,
+    OptionSpec,
+    get_type_hints,
+    restify,
+    stringify_annotation,
+)
 
 if TYPE_CHECKING:
     from collections.abc import Iterator, Sequence
@@ -221,7 +229,7 @@ def between(
             return
         deleted = 0
         delete = not exclude
-        orig_lines = lines[:]
+        orig_lines = lines.copy()
         for i, line in enumerate(orig_lines):
             if delete:
                 lines.pop(i - deleted)
@@ -243,6 +251,7 @@ def between(
 # But we define this class here to keep compatibility (see #4538)
 class Options(dict):
     """A dict/attribute hybrid that returns None on nonexisting keys."""
+
     def copy(self) -> Options:
         return Options(super().copy())
 
@@ -275,7 +284,7 @@ class ObjectMember:
         self.skipped = skipped
         self.class_ = class_
 
-    def __getitem__(self, index):
+    def __getitem__(self, index: int) -> Any:
         warnings.warn('The tuple interface of ObjectMember is deprecated. '
                       'Use (obj.__name__, obj.object) instead.',
                       RemovedInSphinx80Warning, stacklevel=2)
@@ -297,6 +306,7 @@ class Documenter:
     in fact, it will be used to parse an auto directive's options that matches
     the Documenter.
     """
+
     #: name by which the directive is called (auto...) and the default
     #: generated directive name
     objtype = 'object'
@@ -309,7 +319,7 @@ class Documenter:
     #: true if the generated content may contain titles
     titles_allowed = True
 
-    option_spec: OptionSpec = {
+    option_spec: ClassVar[OptionSpec] = {
         'no-index': bool_option,
         'noindex': bool_option,
     }
@@ -319,8 +329,9 @@ class Documenter:
         return autodoc_attrgetter(self.env.app, obj, name, *defargs)
 
     @classmethod
-    def can_document_member(cls, member: Any, membername: str, isattr: bool, parent: Any,
-                            ) -> bool:
+    def can_document_member(
+        cls: type[Documenter], member: Any, membername: str, isattr: bool, parent: Any,
+    ) -> bool:
         """Called to see if a member can be documented by this Documenter."""
         msg = 'must be implemented in subclasses'
         raise NotImplementedError(msg)
@@ -450,9 +461,7 @@ class Documenter:
 
         subject = inspect.unpartial(self.object)
         modname = self.get_attr(subject, '__module__', None)
-        if modname and modname != self.modname:
-            return False
-        return True
+        return not modname or modname == self.modname
 
     def format_args(self, **kwargs: Any) -> str:
         """Format the argument signature of *self.object*.
@@ -923,7 +932,7 @@ class Documenter:
             except PycodeError:
                 pass
 
-        docstrings: list[str] = sum(self.get_doc() or [], [])
+        docstrings: list[str] = functools.reduce(operator.iadd, self.get_doc() or [], [])
         if ismock(self.object) and not docstrings:
             logger.warning(__('A mocked object is detected: %r'),
                            self.name, type='autodoc')
@@ -966,11 +975,12 @@ class ModuleDocumenter(Documenter):
     """
     Specialized Documenter subclass for modules.
     """
+
     objtype = 'module'
     content_indent = ''
     _extra_indent = '   '
 
-    option_spec: OptionSpec = {
+    option_spec: ClassVar[OptionSpec] = {
         'members': members_option, 'undoc-members': bool_option,
         'no-index': bool_option, 'inherited-members': inherited_members_option,
         'show-inheritance': bool_option, 'synopsis': identity,
@@ -997,8 +1007,9 @@ class ModuleDocumenter(Documenter):
                 self.add_line(line, src[0], src[1])
 
     @classmethod
-    def can_document_member(cls, member: Any, membername: str, isattr: bool, parent: Any,
-                            ) -> bool:
+    def can_document_member(
+        cls: type[Documenter], member: Any, membername: str, isattr: bool, parent: Any,
+    ) -> bool:
         # don't document submodules automatically
         return False
 
@@ -1127,13 +1138,14 @@ class ModuleLevelDocumenter(Documenter):
     Specialized Documenter subclass for objects on module level (functions,
     classes, data/constants).
     """
+
     def resolve_name(self, modname: str | None, parents: Any, path: str, base: str,
                      ) -> tuple[str | None, list[str]]:
         if modname is not None:
-            return modname, parents + [base]
+            return modname, [*parents, base]
         if path:
             modname = path.rstrip('.')
-            return modname, parents + [base]
+            return modname, [*parents, base]
 
         # if documenting a toplevel object without explicit module,
         # it can be contained in another auto directive ...
@@ -1142,7 +1154,7 @@ class ModuleLevelDocumenter(Documenter):
         if not modname:
             modname = self.env.ref_context.get('py:module')
         # ... else, it stays None, which means invalid
-        return modname, parents + [base]
+        return modname, [*parents, base]
 
 
 class ClassLevelDocumenter(Documenter):
@@ -1150,10 +1162,11 @@ class ClassLevelDocumenter(Documenter):
     Specialized Documenter subclass for objects on class level (methods,
     attributes).
     """
+
     def resolve_name(self, modname: str | None, parents: Any, path: str, base: str,
                      ) -> tuple[str | None, list[str]]:
         if modname is not None:
-            return modname, parents + [base]
+            return modname, [*parents, base]
 
         if path:
             mod_cls = path.rstrip('.')
@@ -1177,7 +1190,7 @@ class ClassLevelDocumenter(Documenter):
         if not modname:
             modname = self.env.ref_context.get('py:module')
         # ... else, it stays None, which means invalid
-        return modname, parents + [base]
+        return modname, [*parents, base]
 
 
 class DocstringSignatureMixin:
@@ -1185,6 +1198,7 @@ class DocstringSignatureMixin:
     Mixin for FunctionDocumenter and MethodDocumenter to provide the
     feature of reading the signature from the docstring.
     """
+
     _new_docstrings: list[list[str]] | None = None
     _signatures: list[str] = []
 
@@ -1256,7 +1270,7 @@ class DocstringSignatureMixin:
                 self.args, self.retann = result
         sig = super().format_signature(**kwargs)  # type: ignore[misc]
         if self._signatures:
-            return "\n".join([sig] + self._signatures)
+            return "\n".join((sig, *self._signatures))
         else:
             return sig
 
@@ -1266,6 +1280,7 @@ class DocstringStripSignatureMixin(DocstringSignatureMixin):
     Mixin for AttributeDocumenter to provide the
     feature of stripping any function signature from the docstring.
     """
+
     def format_signature(self, **kwargs: Any) -> str:
         if (
             self.args is None
@@ -1286,12 +1301,14 @@ class FunctionDocumenter(DocstringSignatureMixin, ModuleLevelDocumenter):  # typ
     """
     Specialized Documenter subclass for functions.
     """
+
     objtype = 'function'
     member_order = 30
 
     @classmethod
-    def can_document_member(cls, member: Any, membername: str, isattr: bool, parent: Any,
-                            ) -> bool:
+    def can_document_member(
+        cls: type[Documenter], member: Any, membername: str, isattr: bool, parent: Any,
+    ) -> bool:
         # supports functions, builtins and bound methods exported at the module level
         return (inspect.isfunction(member) or inspect.isbuiltin(member) or
                 (inspect.isroutine(member) and isinstance(parent, ModuleDocumenter)))
@@ -1393,7 +1410,7 @@ class FunctionDocumenter(DocstringSignatureMixin, ModuleLevelDocumenter):  # typ
         if len(sig.parameters) == 0:
             return None
 
-        def dummy():
+        def dummy():  # NoQA: ANN202
             pass
 
         params = list(sig.parameters.values())
@@ -1414,6 +1431,7 @@ class DecoratorDocumenter(FunctionDocumenter):
     """
     Specialized Documenter subclass for decorator functions.
     """
+
     objtype = 'decorator'
 
     # must be lower than FunctionDocumenter
@@ -1445,9 +1463,10 @@ class ClassDocumenter(DocstringSignatureMixin, ModuleLevelDocumenter):  # type:
     """
     Specialized Documenter subclass for classes.
     """
+
     objtype = 'class'
     member_order = 20
-    option_spec: OptionSpec = {
+    option_spec: ClassVar[OptionSpec] = {
         'members': members_option, 'undoc-members': bool_option,
         'no-index': bool_option, 'inherited-members': inherited_members_option,
         'show-inheritance': bool_option, 'member-order': member_order_option,
@@ -1481,8 +1500,9 @@ class ClassDocumenter(DocstringSignatureMixin, ModuleLevelDocumenter):  # type:
         merge_members_option(self.options)
 
     @classmethod
-    def can_document_member(cls, member: Any, membername: str, isattr: bool, parent: Any,
-                            ) -> bool:
+    def can_document_member(
+        cls: type[Documenter], member: Any, membername: str, isattr: bool, parent: Any,
+    ) -> bool:
         return isinstance(member, type) or (
             isattr and (inspect.isNewType(member) or isinstance(member, TypeVar)))
 
@@ -1509,7 +1529,7 @@ class ClassDocumenter(DocstringSignatureMixin, ModuleLevelDocumenter):  # type:
             return None, None, None
 
         def get_user_defined_function_or_method(obj: Any, attr: str) -> Any:
-            """ Get the `attr` function or method from `obj`, if it is user-defined. """
+            """Get the `attr` function or method from `obj`, if it is user-defined."""
             if inspect.is_builtin_class_method(obj, attr):
                 return None
             attr = self.get_attr(obj, attr, None)
@@ -1657,7 +1677,7 @@ class ClassDocumenter(DocstringSignatureMixin, ModuleLevelDocumenter):  # type:
                 try:
                     analyzer = ModuleAnalyzer.for_module(cls.__module__)
                     analyzer.analyze()
-                    qualname = '.'.join([cls.__qualname__, self._signature_method_name])
+                    qualname = f'{cls.__qualname__}.{self._signature_method_name}'
                     if qualname in analyzer.overloads:
                         return analyzer.overloads.get(qualname, [])
                     elif qualname in analyzer.tagorder:
@@ -1678,7 +1698,7 @@ class ClassDocumenter(DocstringSignatureMixin, ModuleLevelDocumenter):  # type:
             __qualname__ = None
 
         if __modname__ and __qualname__:
-            return '.'.join([__modname__, __qualname__])
+            return f'{__modname__}.{__qualname__}'
         else:
             return None
 
@@ -1904,6 +1924,7 @@ class ExceptionDocumenter(ClassDocumenter):
     """
     Specialized ClassDocumenter subclass for exceptions.
     """
+
     objtype = 'exception'
     member_order = 10
 
@@ -1911,8 +1932,9 @@ class ExceptionDocumenter(ClassDocumenter):
     priority = ClassDocumenter.priority + 5
 
     @classmethod
-    def can_document_member(cls, member: Any, membername: str, isattr: bool, parent: Any,
-                            ) -> bool:
+    def can_document_member(
+        cls: type[Documenter], member: Any, membername: str, isattr: bool, parent: Any,
+    ) -> bool:
         try:
             return isinstance(member, type) and issubclass(member, BaseException)
         except TypeError as exc:
@@ -2016,16 +2038,18 @@ class DataDocumenter(GenericAliasMixin,
     """
     Specialized Documenter subclass for data items.
     """
+
     objtype = 'data'
     member_order = 40
     priority = -10
-    option_spec: OptionSpec = dict(ModuleLevelDocumenter.option_spec)
+    option_spec: ClassVar[OptionSpec] = dict(ModuleLevelDocumenter.option_spec)
     option_spec["annotation"] = annotation_option
     option_spec["no-value"] = bool_option
 
     @classmethod
-    def can_document_member(cls, member: Any, membername: str, isattr: bool, parent: Any,
-                            ) -> bool:
+    def can_document_member(
+        cls: type[Documenter], member: Any, membername: str, isattr: bool, parent: Any,
+    ) -> bool:
         return isinstance(parent, ModuleDocumenter) and isattr
 
     def update_annotations(self, parent: Any) -> None:
@@ -2054,7 +2078,8 @@ class DataDocumenter(GenericAliasMixin,
             return True
         else:
             doc = self.get_doc() or []
-            docstring, metadata = separate_metadata('\n'.join(sum(doc, [])))
+            docstring, metadata = separate_metadata(
+                '\n'.join(functools.reduce(operator.iadd, doc, [])))
             if 'hide-value' in metadata:
                 return True
 
@@ -2135,14 +2160,16 @@ class MethodDocumenter(DocstringSignatureMixin, ClassLevelDocumenter):  # type:
     """
     Specialized Documenter subclass for methods (normal, static and class).
     """
+
     objtype = 'method'
     directivetype = 'method'
     member_order = 50
     priority = 1  # must be more than FunctionDocumenter
 
     @classmethod
-    def can_document_member(cls, member: Any, membername: str, isattr: bool, parent: Any,
-                            ) -> bool:
+    def can_document_member(
+        cls: type[Documenter], member: Any, membername: str, isattr: bool, parent: Any,
+    ) -> bool:
         return inspect.isroutine(member) and not isinstance(parent, ModuleDocumenter)
 
     def import_object(self, raiseerror: bool = False) -> bool:
@@ -2169,7 +2196,7 @@ class MethodDocumenter(DocstringSignatureMixin, ClassLevelDocumenter):  # type:
             kwargs.setdefault('unqualified_typehints', True)
 
         try:
-            if self.object == object.__init__ and self.parent != object:
+            if self.object == object.__init__ and self.parent != object:  # NoQA: E721
                 # Classes not having own __init__() method are shown as no arguments.
                 #
                 # Note: The signature of object.__init__() is (self, /, *args, **kwargs).
@@ -2206,7 +2233,8 @@ class MethodDocumenter(DocstringSignatureMixin, ClassLevelDocumenter):  # type:
             self.add_line('   :abstractmethod:', sourcename)
         if inspect.iscoroutinefunction(obj) or inspect.isasyncgenfunction(obj):
             self.add_line('   :async:', sourcename)
-        if inspect.isclassmethod(obj):
+        if (inspect.isclassmethod(obj) or
+                inspect.is_singledispatch_method(obj) and inspect.isclassmethod(obj.func)):
             self.add_line('   :classmethod:', sourcename)
         if inspect.isstaticmethod(obj, cls=self.parent, name=self.object_name):
             self.add_line('   :staticmethod:', sourcename)
@@ -2238,6 +2266,8 @@ class MethodDocumenter(DocstringSignatureMixin, ClassLevelDocumenter):  # type:
                 if typ is object:
                     pass  # default implementation. skipped.
                 else:
+                    if inspect.isclassmethod(func):
+                        func = func.__func__
                     dispatchmeth = self.annotate_to_first_argument(func, typ)
                     if dispatchmeth:
                         documenter = MethodDocumenter(self.directive, '')
@@ -2292,7 +2322,7 @@ class MethodDocumenter(DocstringSignatureMixin, ClassLevelDocumenter):  # type:
         if len(sig.parameters) == 1:
             return None
 
-        def dummy():
+        def dummy():  # NoQA: ANN202
             pass
 
         params = list(sig.parameters.values())
@@ -2408,8 +2438,8 @@ class SlotsMixin(DataDocumenterMixinBase):
         if self.object is SLOTSATTR:
             try:
                 parent___slots__ = inspect.getslots(self.parent)
-                if parent___slots__ and parent___slots__.get(self.objpath[-1]):
-                    docstring = prepare_docstring(parent___slots__[self.objpath[-1]])
+                if parent___slots__ and (docstring := parent___slots__.get(self.objpath[-1])):
+                    docstring = prepare_docstring(docstring)
                     return [docstring]
                 else:
                     return []
@@ -2440,9 +2470,7 @@ class RuntimeInstanceAttributeMixin(DataDocumenterMixinBase):
         # An instance variable defined in __init__().
         if self.get_attribute_comment(parent, self.objpath[-1]):  # type: ignore[attr-defined]
             return True
-        if self.is_runtime_instance_attribute_not_commented(parent):
-            return True
-        return False
+        return self.is_runtime_instance_attribute_not_commented(parent)
 
     def is_runtime_instance_attribute_not_commented(self, parent: Any) -> bool:
         """Check the subject is an attribute defined in __init__() without comment."""
@@ -2454,7 +2482,7 @@ class RuntimeInstanceAttributeMixin(DataDocumenterMixinBase):
                 analyzer = ModuleAnalyzer.for_module(module)
                 analyzer.analyze()
                 if qualname and self.objpath:
-                    key = '.'.join([qualname, self.objpath[-1]])
+                    key = f'{qualname}.{self.objpath[-1]}'
                     if key in analyzer.tagorder:
                         return True
             except (AttributeError, PycodeError):
@@ -2464,7 +2492,8 @@ class RuntimeInstanceAttributeMixin(DataDocumenterMixinBase):
 
     def import_object(self, raiseerror: bool = False) -> bool:
         """Check the existence of runtime instance attribute after failing to import the
-        attribute."""
+        attribute.
+        """
         try:
             return super().import_object(raiseerror=True)  # type: ignore[misc]
         except ImportError as exc:
@@ -2517,7 +2546,8 @@ class UninitializedInstanceAttributeMixin(DataDocumenterMixinBase):
 
     def import_object(self, raiseerror: bool = False) -> bool:
         """Check the exisitence of uninitialized instance attribute when failed to import
-        the attribute."""
+        the attribute.
+        """
         try:
             return super().import_object(raiseerror=True)  # type: ignore[misc]
         except ImportError as exc:
@@ -2556,9 +2586,10 @@ class AttributeDocumenter(GenericAliasMixin, SlotsMixin,  # type: ignore[misc]
     """
     Specialized Documenter subclass for attributes.
     """
+
     objtype = 'attribute'
     member_order = 60
-    option_spec: OptionSpec = dict(ModuleLevelDocumenter.option_spec)
+    option_spec: ClassVar[OptionSpec] = dict(ModuleLevelDocumenter.option_spec)
     option_spec["annotation"] = annotation_option
     option_spec["no-value"] = bool_option
 
@@ -2571,15 +2602,14 @@ class AttributeDocumenter(GenericAliasMixin, SlotsMixin,  # type: ignore[misc]
         return inspect.isfunction(obj) or inspect.isbuiltin(obj) or inspect.ismethod(obj)
 
     @classmethod
-    def can_document_member(cls, member: Any, membername: str, isattr: bool, parent: Any,
-                            ) -> bool:
+    def can_document_member(
+        cls: type[Documenter], member: Any, membername: str, isattr: bool, parent: Any,
+    ) -> bool:
         if isinstance(parent, ModuleDocumenter):
             return False
         if inspect.isattributedescriptor(member):
             return True
-        if not inspect.isroutine(member) and not isinstance(member, type):
-            return True
-        return False
+        return not inspect.isroutine(member) and not isinstance(member, type)
 
     def document_members(self, all_members: bool = False) -> None:
         pass
@@ -2625,7 +2655,8 @@ class AttributeDocumenter(GenericAliasMixin, SlotsMixin,  # type: ignore[misc]
         else:
             doc = self.get_doc()
             if doc:
-                docstring, metadata = separate_metadata('\n'.join(sum(doc, [])))
+                docstring, metadata = separate_metadata(
+                    '\n'.join(functools.reduce(operator.iadd, doc, [])))
                 if 'hide-value' in metadata:
                     return True
 
@@ -2711,6 +2742,7 @@ class PropertyDocumenter(DocstringStripSignatureMixin,  # type: ignore[misc]
     """
     Specialized Documenter subclass for properties.
     """
+
     objtype = 'property'
     member_order = 60
 
@@ -2718,8 +2750,9 @@ class PropertyDocumenter(DocstringStripSignatureMixin,  # type: ignore[misc]
     priority = AttributeDocumenter.priority + 1
 
     @classmethod
-    def can_document_member(cls, member: Any, membername: str, isattr: bool, parent: Any,
-                            ) -> bool:
+    def can_document_member(
+        cls: type[Documenter], member: Any, membername: str, isattr: bool, parent: Any,
+    ) -> bool:
         if isinstance(parent, ClassDocumenter):
             if inspect.isproperty(member):
                 return True
@@ -2732,7 +2765,8 @@ class PropertyDocumenter(DocstringStripSignatureMixin,  # type: ignore[misc]
 
     def import_object(self, raiseerror: bool = False) -> bool:
         """Check the exisitence of uninitialized instance attribute when failed to import
-        the attribute."""
+        the attribute.
+        """
         ret = super().import_object(raiseerror)
         if ret and not inspect.isproperty(self.object):
             __dict__ = safe_getattr(self.parent, '__dict__', {})
@@ -2793,7 +2827,7 @@ class PropertyDocumenter(DocstringStripSignatureMixin,  # type: ignore[misc]
         except ValueError:
             pass
 
-    def _get_property_getter(self):
+    def _get_property_getter(self) -> Callable | None:
         if safe_getattr(self.object, 'fget', None):  # property
             return self.object.fget
         if safe_getattr(self.object, 'func', None):  # cached_property
@@ -2810,7 +2844,7 @@ def autodoc_attrgetter(app: Sphinx, obj: Any, name: str, *defargs: Any) -> Any:
     return safe_getattr(obj, name, *defargs)
 
 
-def setup(app: Sphinx) -> dict[str, Any]:
+def setup(app: Sphinx) -> ExtensionMetadata:
     app.add_autodocumenter(ModuleDocumenter)
     app.add_autodocumenter(ClassDocumenter)
     app.add_autodocumenter(ExceptionDocumenter)
@@ -2821,22 +2855,22 @@ def setup(app: Sphinx) -> dict[str, Any]:
     app.add_autodocumenter(AttributeDocumenter)
     app.add_autodocumenter(PropertyDocumenter)
 
-    app.add_config_value('autoclass_content', 'class', True, ENUM('both', 'class', 'init'))
-    app.add_config_value('autodoc_member_order', 'alphabetical', True,
+    app.add_config_value('autoclass_content', 'class', 'env', ENUM('both', 'class', 'init'))
+    app.add_config_value('autodoc_member_order', 'alphabetical', 'env',
                          ENUM('alphabetical', 'bysource', 'groupwise'))
-    app.add_config_value('autodoc_class_signature', 'mixed', True, ENUM('mixed', 'separated'))
-    app.add_config_value('autodoc_default_options', {}, True)
-    app.add_config_value('autodoc_docstring_signature', True, True)
-    app.add_config_value('autodoc_mock_imports', [], True)
-    app.add_config_value('autodoc_typehints', "signature", True,
+    app.add_config_value('autodoc_class_signature', 'mixed', 'env', ENUM('mixed', 'separated'))
+    app.add_config_value('autodoc_default_options', {}, 'env')
+    app.add_config_value('autodoc_docstring_signature', True, 'env')
+    app.add_config_value('autodoc_mock_imports', [], 'env')
+    app.add_config_value('autodoc_typehints', "signature", 'env',
                          ENUM("signature", "description", "none", "both"))
-    app.add_config_value('autodoc_typehints_description_target', 'all', True,
+    app.add_config_value('autodoc_typehints_description_target', 'all', 'env',
                          ENUM('all', 'documented', 'documented_params'))
-    app.add_config_value('autodoc_type_aliases', {}, True)
+    app.add_config_value('autodoc_type_aliases', {}, 'env')
     app.add_config_value('autodoc_typehints_format', "short", 'env',
                          ENUM("fully-qualified", "short"))
-    app.add_config_value('autodoc_warningiserror', True, True)
-    app.add_config_value('autodoc_inherit_docstrings', True, True)
+    app.add_config_value('autodoc_warningiserror', True, 'env')
+    app.add_config_value('autodoc_inherit_docstrings', True, 'env')
     app.add_event('autodoc-before-process-signature')
     app.add_event('autodoc-process-docstring')
     app.add_event('autodoc-process-signature')
diff --git a/sphinx/ext/autodoc/directive.py b/sphinx/ext/autodoc/directive.py
index 64cbc9b..130e347 100644
--- a/sphinx/ext/autodoc/directive.py
+++ b/sphinx/ext/autodoc/directive.py
@@ -59,20 +59,20 @@ class DocumenterBridge:
 def process_documenter_options(documenter: type[Documenter], config: Config, options: dict,
                                ) -> Options:
     """Recognize options of Documenter from user input."""
+    default_options = config.autodoc_default_options
     for name in AUTODOC_DEFAULT_OPTIONS:
         if name not in documenter.option_spec:
             continue
         negated = options.pop('no-' + name, True) is None
-        if name in config.autodoc_default_options and not negated:
-            if name in options and isinstance(config.autodoc_default_options[name], str):
+        if name in default_options and not negated:
+            if name in options and isinstance(default_options[name], str):
                 # take value from options if present or extend it
                 # with autodoc_default_options if necessary
                 if name in AUTODOC_EXTENDABLE_OPTIONS:
                     if options[name] is not None and options[name].startswith('+'):
-                        options[name] = ','.join([config.autodoc_default_options[name],
-                                                  options[name][1:]])
+                        options[name] = f'{default_options[name]},{options[name][1:]}'
             else:
-                options[name] = config.autodoc_default_options[name]
+                options[name] = default_options[name]
 
         elif options.get(name) is not None:
             # remove '+' from option argument if there's nothing to merge it with
@@ -104,6 +104,7 @@ class AutodocDirective(SphinxDirective):
     It invokes a Documenter upon running. After the processing, it parses and returns
     the content generated by Documenter.
     """
+
     option_spec = DummyOptionSpec()
     has_content = True
     required_arguments = 1
@@ -114,7 +115,7 @@ class AutodocDirective(SphinxDirective):
         reporter = self.state.document.reporter
 
         try:
-            source, lineno = reporter.get_source_and_line(  # type: ignore[attr-defined]
+            source, lineno = reporter.get_source_and_line(
                 self.lineno)
         except AttributeError:
             source, lineno = (None, None)
diff --git a/sphinx/ext/autodoc/importer.py b/sphinx/ext/autodoc/importer.py
index 84bfee5..784fa71 100644
--- a/sphinx/ext/autodoc/importer.py
+++ b/sphinx/ext/autodoc/importer.py
@@ -8,7 +8,8 @@ import os
 import sys
 import traceback
 import typing
-from typing import TYPE_CHECKING, Any, Callable, NamedTuple
+from enum import Enum
+from typing import TYPE_CHECKING, NamedTuple
 
 from sphinx.ext.autodoc.mock import ismock, undecorate
 from sphinx.pycode import ModuleAnalyzer, PycodeError
@@ -20,16 +21,91 @@ from sphinx.util.inspect import (
     isclass,
     isenumclass,
     safe_getattr,
+    unwrap_all,
 )
 
 if TYPE_CHECKING:
+    from collections.abc import Callable, Iterator, Mapping
     from types import ModuleType
+    from typing import Any
 
     from sphinx.ext.autodoc import ObjectMember
 
 logger = logging.getLogger(__name__)
 
 
+def _filter_enum_dict(
+    enum_class: type[Enum],
+    attrgetter: Callable[[Any, str, Any], Any],
+    enum_class_dict: Mapping[str, object],
+) -> Iterator[tuple[str, type, Any]]:
+    """Find the attributes to document of an enumeration class.
+
+    The output consists of triplets ``(attribute name, defining class, value)``
+    where the attribute name can appear more than once during the iteration
+    but with different defining class. The order of occurrence is guided by
+    the MRO of *enum_class*.
+    """
+    # attributes that were found on a mixin type or the data type
+    candidate_in_mro: set[str] = set()
+    # sunder names that were picked up (and thereby allowed to be redefined)
+    # see: https://docs.python.org/3/howto/enum.html#supported-dunder-names
+    sunder_names = {'_name_', '_value_', '_missing_', '_order_', '_generate_next_value_'}
+    # attributes that can be picked up on a mixin type or the enum's data type
+    public_names = {'name', 'value', *object.__dict__, *sunder_names}
+    # names that are ignored by default
+    ignore_names = Enum.__dict__.keys() - public_names
+
+    def is_native_api(obj: object, name: str) -> bool:
+        """Check whether *obj* is the same as ``Enum.__dict__[name]``."""
+        return unwrap_all(obj) is unwrap_all(Enum.__dict__[name])
+
+    def should_ignore(name: str, value: Any) -> bool:
+        if name in sunder_names:
+            return is_native_api(value, name)
+        return name in ignore_names
+
+    sentinel = object()
+
+    def query(name: str, defining_class: type) -> tuple[str, type, Any] | None:
+        value = attrgetter(enum_class, name, sentinel)
+        if value is not sentinel:
+            return (name, defining_class, value)
+        return None
+
+    # attributes defined on a parent type, possibly shadowed later by
+    # the attributes defined directly inside the enumeration class
+    for parent in enum_class.__mro__:
+        if parent in {enum_class, Enum, object}:
+            continue
+
+        parent_dict = attrgetter(parent, '__dict__', {})
+        for name, value in parent_dict.items():
+            if should_ignore(name, value):
+                continue
+
+            candidate_in_mro.add(name)
+            if (item := query(name, parent)) is not None:
+                yield item
+
+    # exclude members coming from the native Enum unless
+    # they were redefined on a mixin type or the data type
+    excluded_members = Enum.__dict__.keys() - candidate_in_mro
+    yield from filter(None, (query(name, enum_class) for name in enum_class_dict
+                             if name not in excluded_members))
+
+    # check if allowed members from ``Enum`` were redefined at the enum level
+    special_names = sunder_names | public_names
+    special_names &= enum_class_dict.keys()
+    special_names &= Enum.__dict__.keys()
+    for name in special_names:
+        if (
+            not is_native_api(enum_class_dict[name], name)
+            and (item := query(name, enum_class)) is not None
+        ):
+            yield item
+
+
 def mangle(subject: Any, name: str) -> str:
     """Mangle the given name."""
     try:
@@ -61,9 +137,7 @@ def unmangle(subject: Any, name: str) -> str | None:
 
 
 def import_module(modname: str, warningiserror: bool = False) -> Any:
-    """
-    Call importlib.import_module(modname), convert exceptions to ImportError
-    """
+    """Call importlib.import_module(modname), convert exceptions to ImportError."""
     try:
         with logging.skip_warningiserror(not warningiserror):
             return importlib.import_module(modname)
@@ -97,7 +171,7 @@ def import_object(modname: str, objpath: list[str], objtype: str = '',
     try:
         module = None
         exc_on_importing = None
-        objpath = list(objpath)
+        objpath = objpath.copy()
         while module is None:
             try:
                 original_module_names = frozenset(sys.modules)
@@ -194,15 +268,11 @@ def get_object_members(
 
     # enum members
     if isenumclass(subject):
-        for name, value in subject.__members__.items():
-            if name not in members:
-                members[name] = Attribute(name, True, value)
-
-        superclass = subject.__mro__[1]
-        for name in obj_dict:
-            if name not in superclass.__dict__:
-                value = safe_getattr(subject, name)
-                members[name] = Attribute(name, True, value)
+        for name, defining_class, value in _filter_enum_dict(subject, attrgetter, obj_dict):
+            # the order of occurrence of *name* matches the subject's MRO,
+            # allowing inherited attributes to be shadowed correctly
+            if unmangled := unmangle(defining_class, name):
+                members[unmangled] = Attribute(unmangled, defining_class is subject, value)
 
     # members in __slots__
     try:
@@ -220,18 +290,18 @@ def get_object_members(
         try:
             value = attrgetter(subject, name)
             directly_defined = name in obj_dict
-            name = unmangle(subject, name)
-            if name and name not in members:
-                members[name] = Attribute(name, directly_defined, value)
+            unmangled = unmangle(subject, name)
+            if unmangled and unmangled not in members:
+                members[unmangled] = Attribute(unmangled, directly_defined, value)
         except AttributeError:
             continue
 
     # annotation only member (ex. attr: int)
-    for i, cls in enumerate(getmro(subject)):
+    for cls in getmro(subject):
         for name in getannotations(cls):
-            name = unmangle(cls, name)
-            if name and name not in members:
-                members[name] = Attribute(name, i == 0, INSTANCEATTR)
+            unmangled = unmangle(cls, name)
+            if unmangled and unmangled not in members:
+                members[unmangled] = Attribute(unmangled, cls is subject, INSTANCEATTR)
 
     if analyzer:
         # append instance attributes (cf. self.attr1) if analyzer knows
@@ -255,15 +325,11 @@ def get_class_members(subject: Any, objpath: Any, attrgetter: Callable,
 
     # enum members
     if isenumclass(subject):
-        for name, value in subject.__members__.items():
-            if name not in members:
-                members[name] = ObjectMember(name, value, class_=subject)
-
-        superclass = subject.__mro__[1]
-        for name in obj_dict:
-            if name not in superclass.__dict__:
-                value = safe_getattr(subject, name)
-                members[name] = ObjectMember(name, value, class_=subject)
+        for name, defining_class, value in _filter_enum_dict(subject, attrgetter, obj_dict):
+            # the order of occurrence of *name* matches the subject's MRO,
+            # allowing inherited attributes to be shadowed correctly
+            if unmangled := unmangle(defining_class, name):
+                members[unmangled] = ObjectMember(unmangled, value, class_=defining_class)
 
     # members in __slots__
     try:
@@ -308,15 +374,15 @@ def get_class_members(subject: Any, objpath: Any, attrgetter: Callable,
 
             # annotation only member (ex. attr: int)
             for name in getannotations(cls):
-                name = unmangle(cls, name)
-                if name and name not in members:
-                    if analyzer and (qualname, name) in analyzer.attr_docs:
-                        docstring = '\n'.join(analyzer.attr_docs[qualname, name])
+                unmangled = unmangle(cls, name)
+                if unmangled and unmangled not in members:
+                    if analyzer and (qualname, unmangled) in analyzer.attr_docs:
+                        docstring = '\n'.join(analyzer.attr_docs[qualname, unmangled])
                     else:
                         docstring = None
 
-                    members[name] = ObjectMember(name, INSTANCEATTR, class_=cls,
-                                                 docstring=docstring)
+                    members[unmangled] = ObjectMember(unmangled, INSTANCEATTR, class_=cls,
+                                                      docstring=docstring)
 
             # append or complete instance attributes (cf. self.attr1) if analyzer knows
             if analyzer:
diff --git a/sphinx/ext/autodoc/mock.py b/sphinx/ext/autodoc/mock.py
index 7034977..c2ab0fe 100644
--- a/sphinx/ext/autodoc/mock.py
+++ b/sphinx/ext/autodoc/mock.py
@@ -14,7 +14,7 @@ from sphinx.util import logging
 from sphinx.util.inspect import isboundmethod, safe_getattr
 
 if TYPE_CHECKING:
-    from collections.abc import Generator, Iterator, Sequence
+    from collections.abc import Iterator, Sequence
 
 logger = logging.getLogger(__name__)
 
@@ -80,6 +80,7 @@ def _make_subclass(name: str, module: str, superclass: Any = _MockObject,
 
 class _MockModule(ModuleType):
     """Used by autodoc_mock_imports."""
+
     __file__ = os.devnull
     __sphinx_mock__ = True
 
@@ -97,6 +98,7 @@ class _MockModule(ModuleType):
 
 class MockLoader(Loader):
     """A loader for mocking."""
+
     def __init__(self, finder: MockFinder) -> None:
         super().__init__()
         self.finder = finder
@@ -135,12 +137,12 @@ class MockFinder(MetaPathFinder):
 
 
 @contextlib.contextmanager
-def mock(modnames: list[str]) -> Generator[None, None, None]:
+def mock(modnames: list[str]) -> Iterator[None]:
     """Insert mock modules during context::
 
-        with mock(['target.module.name']):
-            # mock modules are enabled here
-            ...
+    with mock(['target.module.name']):
+        # mock modules are enabled here
+        ...
     """
     try:
         finder = MockFinder(modnames)
diff --git a/sphinx/ext/autodoc/preserve_defaults.py b/sphinx/ext/autodoc/preserve_defaults.py
index 5f957ce..b0b3243 100644
--- a/sphinx/ext/autodoc/preserve_defaults.py
+++ b/sphinx/ext/autodoc/preserve_defaults.py
@@ -22,6 +22,7 @@ if TYPE_CHECKING:
     from typing import Any
 
     from sphinx.application import Sphinx
+    from sphinx.util.typing import ExtensionMetadata
 
 logger = logging.getLogger(__name__)
 _LAMBDA_NAME = (lambda: None).__name__
@@ -96,7 +97,7 @@ def _get_arguments(obj: Any, /) -> ast.arguments | None:
     return _get_arguments_inner(subject)
 
 
-def _is_lambda(x, /):
+def _is_lambda(x: Any, /) -> bool:
     return isinstance(x, types.LambdaType) and x.__name__ == _LAMBDA_NAME
 
 
@@ -189,8 +190,8 @@ def update_defvalue(app: Sphinx, obj: Any, bound_method: bool) -> None:
         logger.warning(__("Failed to parse a default argument value for %r: %s"), obj, exc)
 
 
-def setup(app: Sphinx) -> dict[str, Any]:
-    app.add_config_value('autodoc_preserve_defaults', False, True)
+def setup(app: Sphinx) -> ExtensionMetadata:
+    app.add_config_value('autodoc_preserve_defaults', False, 'env')
     app.connect('autodoc-before-process-signature', update_defvalue)
 
     return {
diff --git a/sphinx/ext/autodoc/type_comment.py b/sphinx/ext/autodoc/type_comment.py
index e2c9ae2..e0a5a63 100644
--- a/sphinx/ext/autodoc/type_comment.py
+++ b/sphinx/ext/autodoc/type_comment.py
@@ -15,6 +15,7 @@ if TYPE_CHECKING:
     from collections.abc import Sequence
 
     from sphinx.application import Sphinx
+    from sphinx.util.typing import ExtensionMetadata
 
 logger = logging.getLogger(__name__)
 
@@ -134,7 +135,7 @@ def update_annotations_using_type_comments(app: Sphinx, obj: Any, bound_method:
         logger.warning(__("Failed to parse type_comment for %r: %s"), obj, exc)
 
 
-def setup(app: Sphinx) -> dict[str, Any]:
+def setup(app: Sphinx) -> ExtensionMetadata:
     app.connect('autodoc-before-process-signature', update_annotations_using_type_comments)
 
     return {'version': sphinx.__display_version__, 'parallel_read_safe': True}
diff --git a/sphinx/ext/autodoc/typehints.py b/sphinx/ext/autodoc/typehints.py
index 79906fb..df0c468 100644
--- a/sphinx/ext/autodoc/typehints.py
+++ b/sphinx/ext/autodoc/typehints.py
@@ -11,16 +11,17 @@ from docutils import nodes
 import sphinx
 from sphinx import addnodes
 from sphinx.util import inspect
-from sphinx.util.typing import stringify_annotation
+from sphinx.util.typing import ExtensionMetadata, stringify_annotation
 
 if TYPE_CHECKING:
     from docutils.nodes import Element
 
     from sphinx.application import Sphinx
+    from sphinx.ext.autodoc import Options
 
 
 def record_typehints(app: Sphinx, objtype: str, name: str, obj: Any,
-                     options: dict, args: str, retann: str) -> None:
+                     options: Options, args: str, retann: str) -> None:
     """Record type hints to env object."""
     if app.config.autodoc_typehints_format == 'short':
         mode = 'smart'
@@ -50,7 +51,7 @@ def merge_typehints(app: Sphinx, domain: str, objtype: str, contentnode: Element
     try:
         signature = cast(addnodes.desc_signature, contentnode.parent[0])
         if signature['module']:
-            fullname = '.'.join([signature['module'], signature['fullname']])
+            fullname = f'{signature["module"]}.{signature["fullname"]}'
         else:
             fullname = signature['fullname']
     except KeyError:
@@ -208,7 +209,7 @@ def augment_descriptions_with_types(
             node += field
 
 
-def setup(app: Sphinx) -> dict[str, Any]:
+def setup(app: Sphinx) -> ExtensionMetadata:
     app.connect('autodoc-process-signature', record_typehints)
     app.connect('object-description-transform', merge_typehints)