Use typing_extensions.Self instead of _typeshed.Self (#9702)

stubs/regex/regex/_regex.pyi

@@ -3,9 +3,8 @@
 # For example: `Pattern` and `Match` are not exported
 # and are redefined in `regex.regex module.
 
-from _typeshed import Self
 from typing import Any, AnyStr, Generic
-from typing_extensions import final
+from typing_extensions import Self, final
 
 from .regex import Match, Pattern
 
@@ -13,7 +12,7 @@ from .regex import Match, Pattern
 class Splitter(Generic[AnyStr]):
     @property
     def pattern(self) -> Pattern[AnyStr]: ...
-    def __iter__(self: Self) -> Self: ...
+    def __iter__(self) -> Self: ...
     def __next__(self) -> AnyStr | Any: ...
     def split(self) -> AnyStr | Any: ...
 
@@ -21,7 +20,7 @@ class Splitter(Generic[AnyStr]):
 class Scanner(Generic[AnyStr]):
     @property
     def pattern(self) -> Pattern[AnyStr]: ...
-    def __iter__(self: Self) -> Self: ...
+    def __iter__(self) -> Self: ...
     def __next__(self) -> Match[AnyStr]: ...
     def match(self) -> Match[AnyStr] | None: ...
     def search(self) -> Match[AnyStr] | None: ...

stubs/regex/regex/regex.pyi

@@ -1,8 +1,8 @@
 import sys
-from _typeshed import ReadableBuffer, Self
+from _typeshed import ReadableBuffer
 from collections.abc import Callable, Mapping
 from typing import Any, AnyStr, Generic, TypeVar, overload
-from typing_extensions import Literal, final
+from typing_extensions import Literal, Self, final
 
 from . import _regex
 from ._regex_core import *
@@ -565,8 +565,8 @@ class Pattern(Generic[AnyStr]):
         concurrent: bool | None = ...,
         timeout: float | None = ...,
     ) -> _regex.Scanner[bytes]: ...
-    def __copy__(self: Self) -> Self: ...
-    def __deepcopy__(self: Self) -> Self: ...
+    def __copy__(self) -> Self: ...
+    def __deepcopy__(self) -> Self: ...
     if sys.version_info >= (3, 9):
         def __class_getitem__(cls, item: Any) -> GenericAlias: ...
 
@@ -644,7 +644,7 @@ class Match(Generic[AnyStr]):
     def __getitem__(self, __key: Literal[0]) -> AnyStr: ...
     @overload
     def __getitem__(self, __key: int | str) -> AnyStr | Any: ...
-    def __copy__(self: Self) -> Self: ...
-    def __deepcopy__(self: Self) -> Self: ...
+    def __copy__(self) -> Self: ...
+    def __deepcopy__(self) -> Self: ...
     if sys.version_info >= (3, 9):
         def __class_getitem__(cls, item: Any) -> GenericAlias: ...