Replace Union with union operator (#7596)

stdlib/tkinter/__init__.pyi

@@ -178,9 +178,9 @@ _CanvasItemId = int
 _Color = str  # typically '#rrggbb', '#rgb' or color names.
 _Compound = Literal["top", "left", "center", "right", "bottom", "none"]  # -compound in manual page named 'options'
 _Cursor = Union[str, tuple[str], tuple[str, str], tuple[str, str, str], tuple[str, str, str, str]]  # manual page: Tk_GetCursor
-_EntryValidateCommand = Union[
-    Callable[[], bool], str, list[str], tuple[str, ...]
-]  # example when it's sequence:  entry['invalidcommand'] = [entry.register(print), '%P']
+_EntryValidateCommand = (
+    str | list[str] | tuple[str, ...] | Callable[[], bool]
+)  # example when it's sequence:  entry['invalidcommand'] = [entry.register(print), '%P']
 _GridIndex = int | str | Literal["all"]
 _ImageSpec = _Image | str  # str can be from e.g. tkinter.image_names()
 _Padding = Union[

stdlib/typing.pyi

@@ -1138,21 +1138,19 @@ class Pattern(Generic[AnyStr]):
 # Functions
 
 if sys.version_info >= (3, 7):
-    _get_type_hints_obj_allowed_types = Union[
-        object,
-        Callable[..., Any],
-        FunctionType,
-        BuiltinFunctionType,
-        MethodType,
-        ModuleType,
-        WrapperDescriptorType,
-        MethodWrapperType,
-        MethodDescriptorType,
-    ]
+    _get_type_hints_obj_allowed_types = (
+        object
+        | Callable[..., Any]
+        | FunctionType
+        | BuiltinFunctionType
+        | MethodType
+        | ModuleType
+        | WrapperDescriptorType
+        | MethodWrapperType
+        | MethodDescriptorType
+    )
 else:
-    _get_type_hints_obj_allowed_types = Union[
-        object, Callable[..., Any], FunctionType, BuiltinFunctionType, MethodType, ModuleType,
-    ]
+    _get_type_hints_obj_allowed_types = object | Callable[..., Any] | FunctionType | BuiltinFunctionType | MethodType | ModuleType
 
 if sys.version_info >= (3, 9):
     def get_type_hints(