Big diff: Use new "|" union syntax (#5872)

stdlib/urllib/response.pyi

@@ -1,7 +1,7 @@
 from _typeshed import Self
 from email.message import Message
 from types import TracebackType
-from typing import IO, Any, BinaryIO, Callable, Iterable, List, Optional, Tuple, Type, TypeVar
+from typing import IO, Any, BinaryIO, Callable, Iterable, List, Tuple, Type, TypeVar
 
 _AIUT = TypeVar("_AIUT", bound=addbase)
 
@@ -10,7 +10,7 @@ class addbase(BinaryIO):
     def __init__(self, fp: IO[bytes]) -> None: ...
     def __enter__(self: Self) -> Self: ...
     def __exit__(
-        self, type: Optional[Type[BaseException]], value: Optional[BaseException], traceback: Optional[TracebackType]
+        self, type: Type[BaseException] | None, value: BaseException | None, traceback: TracebackType | None
     ) -> None: ...
     def __iter__(self: _AIUT) -> _AIUT: ...
     def __next__(self) -> bytes: ...
@@ -29,7 +29,7 @@ class addbase(BinaryIO):
     def seek(self, offset: int, whence: int = ...) -> int: ...
     def seekable(self) -> bool: ...
     def tell(self) -> int: ...
-    def truncate(self, size: Optional[int] = ...) -> int: ...
+    def truncate(self, size: int | None = ...) -> int: ...
     def writable(self) -> bool: ...
     def write(self, s: bytes) -> int: ...
     def writelines(self, lines: Iterable[bytes]) -> None: ...
@@ -47,6 +47,6 @@ class addinfo(addbase):
 class addinfourl(addinfo):
     url: str
     code: int
-    def __init__(self, fp: IO[bytes], headers: Message, url: str, code: Optional[int] = ...) -> None: ...
+    def __init__(self, fp: IO[bytes], headers: Message, url: str, code: int | None = ...) -> None: ...
     def geturl(self) -> str: ...
     def getcode(self) -> int: ...