Add missing dunder overrides in array, tracemalloc and unittest.mock (#7248)

Author: AlexWaygood

stdlib/array.pyi

@@ -35,7 +35,7 @@ class array(MutableSequence[_T], Generic[_T]):
     if sys.version_info >= (3, 10):
         def index(self, __v: _T, __start: int = ..., __stop: int = ...) -> int: ...
     else:
-        def index(self, __v: _T) -> int: ...  # type: ignore  # Overrides Sequence
+        def index(self, __v: _T) -> int: ...  # type: ignore[override]
 
     def insert(self, __i: int, __v: _T) -> None: ...
     def pop(self, __i: int = ...) -> _T: ...
@@ -49,20 +49,21 @@ class array(MutableSequence[_T], Generic[_T]):
         def fromstring(self, __buffer: bytes) -> None: ...
         def tostring(self) -> bytes: ...
 
+    def __contains__(self, __key: object) -> bool: ...
     def __len__(self) -> int: ...
     @overload
     def __getitem__(self, __i: SupportsIndex) -> _T: ...
     @overload
     def __getitem__(self, __s: slice) -> array[_T]: ...
-    @overload  # type: ignore  # Overrides MutableSequence
+    @overload  # type: ignore[override]
     def __setitem__(self, __i: SupportsIndex, __o: _T) -> None: ...
     @overload
     def __setitem__(self, __s: slice, __o: array[_T]) -> None: ...
     def __delitem__(self, __i: SupportsIndex | slice) -> None: ...
     def __add__(self, __x: array[_T]) -> array[_T]: ...
     def __ge__(self, __other: array[_T]) -> bool: ...
     def __gt__(self, __other: array[_T]) -> bool: ...
-    def __iadd__(self: Self, __x: array[_T]) -> Self: ...  # type: ignore  # Overrides MutableSequence
+    def __iadd__(self: Self, __x: array[_T]) -> Self: ...  # type: ignore[override]
     def __imul__(self: Self, __n: int) -> Self: ...
     def __le__(self, __other: array[_T]) -> bool: ...
     def __lt__(self, __other: array[_T]) -> bool: ...

stdlib/tracemalloc.pyi

@@ -43,6 +43,7 @@ class Frame:
     filename: str
     lineno: int
     def __init__(self, frame: _FrameTupleT) -> None: ...
+    def __eq__(self, other: object) -> bool: ...
     def __lt__(self, other: Frame) -> bool: ...
     if sys.version_info >= (3, 11):
         def __gt__(self, other: Frame) -> bool: ...

stdlib/unittest/mock.pyi

@@ -94,6 +94,7 @@ class _Call(tuple[Any, ...]):
     def __ne__(self, __other: object) -> bool: ...
     def __call__(self, *args: Any, **kwargs: Any) -> _Call: ...
     def __getattr__(self, attr: Any) -> Any: ...
+    def __getattribute__(self, attr: str) -> Any: ...
     if sys.version_info >= (3, 8):
         @property
         def args(self): ...