Use PEP 585 syntax wherever possible (#6717)

stdlib/urllib/parse.pyi

@@ -1,5 +1,5 @@
 import sys
-from typing import Any, AnyStr, Callable, Generic, Mapping, NamedTuple, Sequence, Tuple, Union, overload
+from typing import Any, AnyStr, Callable, Generic, Mapping, NamedTuple, Sequence, Union, overload
 
 if sys.version_info >= (3, 9):
     from types import GenericAlias
@@ -35,7 +35,7 @@ class _NetlocResultMixinBase(Generic[AnyStr]):
 class _NetlocResultMixinStr(_NetlocResultMixinBase[str], _ResultMixinStr): ...
 class _NetlocResultMixinBytes(_NetlocResultMixinBase[bytes], _ResultMixinBytes): ...
 
-class _DefragResultBase(Tuple[Any, ...], Generic[AnyStr]):
+class _DefragResultBase(tuple[Any, ...], Generic[AnyStr]):
     url: AnyStr
     fragment: AnyStr
 

stdlib/urllib/request.pyi

@@ -4,7 +4,7 @@ from _typeshed import StrOrBytesPath
 from email.message import Message
 from http.client import HTTPMessage, HTTPResponse, _HTTPConnectionProtocol
 from http.cookiejar import CookieJar
-from typing import IO, Any, Callable, ClassVar, Mapping, NoReturn, Pattern, Sequence, Tuple, TypeVar, overload
+from typing import IO, Any, Callable, ClassVar, Mapping, NoReturn, Pattern, Sequence, TypeVar, overload
 from urllib.error import HTTPError
 from urllib.response import addclosehook, addinfourl
 
@@ -196,9 +196,9 @@ class HTTPSHandler(AbstractHTTPHandler):
     def https_request(self, request: Request) -> Request: ...  # undocumented
 
 class FileHandler(BaseHandler):
-    names: ClassVar[Tuple[str, ...] | None]  # undocumented
+    names: ClassVar[tuple[str, ...] | None]  # undocumented
     def file_open(self, req: Request) -> addinfourl: ...
-    def get_names(self) -> Tuple[str, ...]: ...  # undocumented
+    def get_names(self) -> tuple[str, ...]: ...  # undocumented
     def open_local_file(self, req: Request) -> addinfourl: ...  # undocumented
 
 class DataHandler(BaseHandler):

stdlib/urllib/response.pyi

@@ -2,7 +2,7 @@ import sys
 from _typeshed import Self
 from email.message import Message
 from types import TracebackType
-from typing import IO, Any, BinaryIO, Callable, Iterable, Tuple, Type, TypeVar
+from typing import IO, Any, BinaryIO, Callable, Iterable, Type, TypeVar
 
 _AIUT = TypeVar("_AIUT", bound=addbase)
 
@@ -37,7 +37,7 @@ class addbase(BinaryIO):
 
 class addclosehook(addbase):
     closehook: Callable[..., object]
-    hookargs: Tuple[Any, ...]
+    hookargs: tuple[Any, ...]
     def __init__(self, fp: IO[bytes], closehook: Callable[..., object], *hookargs: Any) -> None: ...
 
 class addinfo(addbase):