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

stdlib/http/cookies.pyi

@@ -1,5 +1,5 @@
 import sys
-from typing import Any, Dict, Generic, Iterable, List, Mapping, Optional, Tuple, TypeVar, Union, overload
+from typing import Any, Dict, Generic, Iterable, List, Mapping, Tuple, TypeVar, Union, overload
 
 if sys.version_info >= (3, 9):
     from types import GenericAlias
@@ -27,26 +27,26 @@ class Morsel(Dict[str, Any], Generic[_T]):
         def set(self, key: str, val: str, coded_val: _T) -> None: ...
     else:
         def set(self, key: str, val: str, coded_val: _T, LegalChars: str = ...) -> None: ...
-    def setdefault(self, key: str, val: Optional[str] = ...) -> str: ...
+    def setdefault(self, key: str, val: str | None = ...) -> str: ...
     # The dict update can also get a keywords argument so this is incompatible
     @overload  # type: ignore
     def update(self, values: Mapping[str, str]) -> None: ...
     @overload
     def update(self, values: Iterable[Tuple[str, str]]) -> None: ...
     def isReservedKey(self, K: str) -> bool: ...
-    def output(self, attrs: Optional[List[str]] = ..., header: str = ...) -> str: ...
-    def js_output(self, attrs: Optional[List[str]] = ...) -> str: ...
-    def OutputString(self, attrs: Optional[List[str]] = ...) -> str: ...
+    def output(self, attrs: List[str] | None = ..., header: str = ...) -> str: ...
+    def js_output(self, attrs: List[str] | None = ...) -> str: ...
+    def OutputString(self, attrs: List[str] | None = ...) -> str: ...
     if sys.version_info >= (3, 9):
         def __class_getitem__(cls, item: Any) -> GenericAlias: ...
 
 class BaseCookie(Dict[str, Morsel[_T]], Generic[_T]):
-    def __init__(self, input: Optional[_DataType] = ...) -> None: ...
+    def __init__(self, input: _DataType | None = ...) -> None: ...
     def value_decode(self, val: str) -> _T: ...
     def value_encode(self, val: _T) -> str: ...
-    def output(self, attrs: Optional[List[str]] = ..., header: str = ..., sep: str = ...) -> str: ...
-    def js_output(self, attrs: Optional[List[str]] = ...) -> str: ...
+    def output(self, attrs: List[str] | None = ..., header: str = ..., sep: str = ...) -> str: ...
+    def js_output(self, attrs: List[str] | None = ...) -> str: ...
     def load(self, rawdata: _DataType) -> None: ...
-    def __setitem__(self, key: str, value: Union[str, Morsel[_T]]) -> None: ...
+    def __setitem__(self, key: str, value: str | Morsel[_T]) -> None: ...
 
 class SimpleCookie(BaseCookie[_T], Generic[_T]): ...