hash should equal that of Union

Author: JelleZijlstra

Lib/test/test_typing.py

@@ -10669,7 +10669,7 @@ def test_eq(self):
             self.assertNotEqual(int, typing._UnionGenericAlias)
 
     def test_hashable(self):
-        self.assertIsInstance(hash(typing._UnionGenericAlias), int)
+        self.assertEqual(hash(typing._UnionGenericAlias), hash(Union))
 
 
 def load_tests(loader, tests, pattern):

Lib/typing.py

@@ -1650,7 +1650,7 @@ def __eq__(self, other):
         return NotImplemented
 
     def __hash__(self):
-        return super().__hash__()
+        return hash(Union)
 
 
 class _UnionGenericAlias(metaclass=_UnionGenericAliasMeta):