Add __slots__ to typing._NotIterable (GH-92570)

miss-islington · AlexWaygood · web-flow · commit 8a2b3edcdc4e · 2022-05-10T02:45:17.000-07:00
(cherry picked from commit eef47d5) Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
diff --git a/Lib/typing.py b/Lib/typing.py
@@ -417,6 +417,7 @@ def __iter__(self): raise TypeError()
     is treated specially.
     """
 
+    __slots__ = ()
     __iter__ = None
 
 
