Delete EnumMeta.__setattr__ and EnumMeta.__delattr__

stdlib/builtins.pyi

@@ -91,15 +91,17 @@ class object:
     def __class__(self, __type: type[object]) -> None: ...  # type: ignore # noqa: F811
     def __init__(self) -> None: ...
     def __new__(cls: type[Self]) -> Self: ...
+    # N.B. `object.__setattr__` and `object.__delattr__` are heavily special-cased by type checkers.
+    # Overriding them in subclasses has different semantics, even if the override has an identical signature.
     def __setattr__(self, __name: str, __value: Any) -> None: ...
+    def __delattr__(self, __name: str) -> None: ...
     def __eq__(self, __o: object) -> bool: ...
     def __ne__(self, __o: object) -> bool: ...
     def __str__(self) -> str: ...  # noqa Y029
     def __repr__(self) -> str: ...  # noqa Y029
     def __hash__(self) -> int: ...
     def __format__(self, __format_spec: str) -> str: ...
     def __getattribute__(self, __name: str) -> Any: ...
-    def __delattr__(self, __name: str) -> None: ...
     def __sizeof__(self) -> int: ...
     # return type of pickle methods is rather hard to express in the current type system
     # see #6661 and https://docs.python.org/3/library/pickle.html#object.__reduce__

stdlib/enum.pyi

@@ -95,8 +95,6 @@ class EnumMeta(ABCMeta):
     def __members__(self: type[_EnumMemberT]) -> types.MappingProxyType[str, _EnumMemberT]: ...
     def __len__(self) -> int: ...
     def __bool__(self) -> Literal[True]: ...
-    def __setattr__(self, name: str, value: Any) -> None: ...
-    def __delattr__(self, name: str) -> None: ...
     if sys.version_info >= (3, 11):
         # Simple value lookup
         @overload  # type: ignore[override]