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

stdlib/aifc.pyi

@@ -1,7 +1,7 @@
 import sys
 from _typeshed import Self
 from types import TracebackType
-from typing import IO, Any, List, NamedTuple, Optional, Tuple, Type, Union, overload
+from typing import IO, Any, List, NamedTuple, Tuple, Type, Union, overload
 from typing_extensions import Literal
 
 class Error(Exception): ...
@@ -21,7 +21,7 @@ class Aifc_read:
     def __init__(self, f: _File) -> None: ...
     def __enter__(self: Self) -> Self: ...
     def __exit__(
-        self, exc_type: Optional[Type[BaseException]], exc_val: Optional[BaseException], exc_tb: Optional[TracebackType]
+        self, exc_type: Type[BaseException] | None, exc_val: BaseException | None, exc_tb: TracebackType | None
     ) -> None: ...
     def initfp(self, file: IO[bytes]) -> None: ...
     def getfp(self) -> IO[bytes]: ...
@@ -35,7 +35,7 @@ class Aifc_read:
     def getcomptype(self) -> bytes: ...
     def getcompname(self) -> bytes: ...
     def getparams(self) -> _aifc_params: ...
-    def getmarkers(self) -> Optional[List[_Marker]]: ...
+    def getmarkers(self) -> List[_Marker] | None: ...
     def getmark(self, id: int) -> _Marker: ...
     def setpos(self, pos: int) -> None: ...
     def readframes(self, nframes: int) -> bytes: ...
@@ -45,7 +45,7 @@ class Aifc_write:
     def __del__(self) -> None: ...
     def __enter__(self: Self) -> Self: ...
     def __exit__(
-        self, exc_type: Optional[Type[BaseException]], exc_val: Optional[BaseException], exc_tb: Optional[TracebackType]
+        self, exc_type: Type[BaseException] | None, exc_val: BaseException | None, exc_tb: TracebackType | None
     ) -> None: ...
     def initfp(self, file: IO[bytes]) -> None: ...
     def aiff(self) -> None: ...
@@ -65,7 +65,7 @@ class Aifc_write:
     def getparams(self) -> _aifc_params: ...
     def setmark(self, id: int, pos: int, name: bytes) -> None: ...
     def getmark(self, id: int) -> _Marker: ...
-    def getmarkers(self) -> Optional[List[_Marker]]: ...
+    def getmarkers(self) -> List[_Marker] | None: ...
     def tell(self) -> int: ...
     def writeframesraw(self, data: Any) -> None: ...  # Actual type for data is Buffer Protocol
     def writeframes(self, data: Any) -> None: ...
@@ -76,7 +76,7 @@ def open(f: _File, mode: Literal["r", "rb"]) -> Aifc_read: ...
 @overload
 def open(f: _File, mode: Literal["w", "wb"]) -> Aifc_write: ...
 @overload
-def open(f: _File, mode: Optional[str] = ...) -> Any: ...
+def open(f: _File, mode: str | None = ...) -> Any: ...
 
 if sys.version_info < (3, 9):
     @overload
@@ -84,4 +84,4 @@ if sys.version_info < (3, 9):
     @overload
     def openfp(f: _File, mode: Literal["w", "wb"]) -> Aifc_write: ...
     @overload
-    def openfp(f: _File, mode: Optional[str] = ...) -> Any: ...
+    def openfp(f: _File, mode: str | None = ...) -> Any: ...