gh-93910: [Enum] restore member.member restriction while keeping performance boost (GH-94913)

1 files changed, 6 insertions, 1 deletions

diff --git a/Lib/test/test_enum.py b/Lib/test/test_enum.py
index aec18c79f7..87d7c72501 100644
--- a/Lib/test/test_enum.py
+++ b/Lib/test/test_enum.py
@@ -2646,7 +2646,6 @@ class TestSpecial(unittest.TestCase):
         self.assertEqual(Private._Private__corporal, 'Radar')
         self.assertEqual(Private._Private__major_, 'Hoolihan')
 
-    @unittest.skip("Accessing all values retained for performance reasons, see GH-93910")
     def test_exception_for_member_from_member_access(self):
         with self.assertRaisesRegex(AttributeError, "<enum .Di.> member has no attribute .NO."):
             class Di(Enum):
@@ -2654,6 +2653,12 @@ class TestSpecial(unittest.TestCase):
                 NO = 0
             nope = Di.YES.NO
 
+    def test_no_exception_for_overridden_member_from_member_access(self):
+        class Di(Enum):
+            YES = 1
+            NO = 0
+        Di.YES.NO = Di.NO
+        nope = Di.YES.NO
 
     def test_dynamic_members_with_static_methods(self):
         #