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

stubs/beautifulsoup4/bs4/__init__.pyi

@@ -1,6 +1,7 @@
-from _typeshed import Incomplete, Self, SupportsRead
+from _typeshed import Incomplete, SupportsRead
 from collections.abc import Sequence
 from typing import Any
+from typing_extensions import Self
 
 from .builder import ParserRejectedMarkup as ParserRejectedMarkup, TreeBuilder, XMLParsedAsHTMLWarning as XMLParsedAsHTMLWarning
 from .element import (
@@ -45,7 +46,7 @@ class BeautifulSoup(Tag):
         element_classes: dict[type[PageElement], type[Any]] | None = ...,
         **kwargs,
     ) -> None: ...
-    def __copy__(self: Self) -> Self: ...
+    def __copy__(self) -> Self: ...
     hidden: bool
     current_data: Any
     currentTag: Any

stubs/beautifulsoup4/bs4/element.pyi

@@ -1,8 +1,8 @@
-from _typeshed import Incomplete, Self
+from _typeshed import Incomplete
 from collections.abc import Callable, Iterable, Iterator
 from re import Pattern
 from typing import Any, Generic, TypeVar, overload
-from typing_extensions import TypeAlias
+from typing_extensions import Self, TypeAlias
 
 from . import BeautifulSoup
 from .builder import TreeBuilder
@@ -14,7 +14,7 @@ whitespace_re: Pattern[str]
 PYTHON_SPECIFIC_ENCODINGS: set[str]
 
 class NamespacedAttribute(str):
-    def __new__(cls: type[Self], prefix: str, name: str | None = ..., namespace: str | None = ...) -> Self: ...
+    def __new__(cls, prefix: str, name: str | None = ..., namespace: str | None = ...) -> Self: ...
 
 class AttributeValueWithCharsetSubstitution(str): ...
 
@@ -57,13 +57,13 @@ class PageElement:
     getText = get_text
     @property
     def text(self) -> str: ...
-    def replace_with(self: Self, *args: PageElement | str) -> Self: ...
+    def replace_with(self, *args: PageElement | str) -> Self: ...
     replaceWith = replace_with
-    def unwrap(self: Self) -> Self: ...
+    def unwrap(self) -> Self: ...
     replace_with_children = unwrap
     replaceWithChildren = unwrap
     def wrap(self, wrap_inside: _PageElementT) -> _PageElementT: ...
-    def extract(self: Self, _self_index: int | None = ...) -> Self: ...
+    def extract(self, _self_index: int | None = ...) -> Self: ...
     def insert(self, position: int, new_child: PageElement | str) -> None: ...
     def append(self, tag: PageElement | str) -> None: ...
     def extend(self, tags: Iterable[PageElement | str]) -> None: ...
@@ -182,8 +182,8 @@ class NavigableString(str, PageElement):
     PREFIX: str
     SUFFIX: str
     known_xml: bool | None
-    def __new__(cls: type[Self], value: str | bytes) -> Self: ...
-    def __copy__(self: Self) -> Self: ...
+    def __new__(cls, value: str | bytes) -> Self: ...
+    def __copy__(self) -> Self: ...
     def __getnewargs__(self) -> tuple[str]: ...
     def output_ready(self, formatter: Formatter | str | None = ...) -> str: ...
     @property
@@ -260,7 +260,7 @@ class Tag(PageElement):
         namespaces: dict[str, str] | None = ...,
     ) -> None: ...
     parserClass: type[BeautifulSoup] | None
-    def __copy__(self: Self) -> Self: ...
+    def __copy__(self) -> Self: ...
     @property
     def is_empty_element(self) -> bool: ...
     @property