Use lowercase tuple where possible (#6170)

stdlib/_typeshed/__init__.pyi

@@ -7,7 +7,7 @@ import ctypes
 import mmap
 import sys
 from os import PathLike
-from typing import AbstractSet, Any, Awaitable, Container, Iterable, Protocol, Tuple, TypeVar, Union
+from typing import AbstractSet, Any, Awaitable, Container, Iterable, Protocol, TypeVar, Union
 from typing_extensions import Literal, final
 
 _KT = TypeVar("_KT")
@@ -57,7 +57,7 @@ class SupportsTrunc(Protocol):
 
 # stable
 class SupportsItems(Protocol[_KT_co, _VT_co]):
-    def items(self) -> AbstractSet[Tuple[_KT_co, _VT_co]]: ...
+    def items(self) -> AbstractSet[tuple[_KT_co, _VT_co]]: ...
 
 # stable
 class SupportsKeysAndGetItem(Protocol[_KT, _VT_co]):

stdlib/_typeshed/wsgi.pyi

@@ -3,12 +3,12 @@
 # See the README.md file in this directory for more information.
 
 from sys import _OptExcInfo
-from typing import Any, Callable, Dict, Iterable, Protocol, Tuple
+from typing import Any, Callable, Dict, Iterable, Protocol
 
 # stable
 class StartResponse(Protocol):
     def __call__(
-        self, status: str, headers: list[Tuple[str, str]], exc_info: _OptExcInfo | None = ...
+        self, status: str, headers: list[tuple[str, str]], exc_info: _OptExcInfo | None = ...
     ) -> Callable[[bytes], Any]: ...
 
 WSGIEnvironment = Dict[str, Any]  # stable