fix NoneType

Author: KotlinIsland

stdlib/_typeshed/__init__.pyi

@@ -203,13 +203,10 @@ ExcInfo: TypeAlias = tuple[type[BaseException], BaseException, TracebackType]
 OptExcInfo: TypeAlias = Union[ExcInfo, tuple[None, None, None]]
 
 # stable
-if sys.version_info >= (3, 10):
-    from types import NoneType as NoneType
-else:
-    # Used by type checkers for checks involving None (does not exist at runtime)
-    @final
-    class NoneType:
-        def __bool__(self) -> Literal[False]: ...
+# Used by type checkers for checks involving None (does not exist at runtime)
+@final
+class NoneType:
+    def __bool__(self) -> Literal[False]: ...
 
 # This is an internal CPython type that is like, but subtly different from, a NamedTuple
 # Subclasses of this type are found in multiple modules.

stdlib/types.pyi

@@ -654,10 +654,8 @@ if sys.version_info >= (3, 9):
         def __getattr__(self, name: str) -> Any: ...  # incomplete
 
 if sys.version_info >= (3, 10):
-    @final
-    class NoneType:
-        def __bool__(self) -> Literal[False]: ...
-    EllipsisType = ellipsis  # noqa: F821 from builtins
+    NoneType = type(None)
+    EllipsisType = ellipsis  # noqa: F811 from builtins
     from builtins import _NotImplementedType
 
     NotImplementedType = _NotImplementedType