1 files changed, 12 insertions, 0 deletions
diff --git a/Lib/test/test_module.py b/Lib/test/test_module.py
index 6608dbc..619348e 100644
--- a/Lib/test/test_module.py
+++ b/Lib/test/test_module.py
@@ -332,6 +332,18 @@ a = A(destroyed)"""
         self.assertFalse("__annotations__" in ann_module4.__dict__)
 
 
+    def test_repeated_attribute_pops(self):
+        # Repeated accesses to module attribute will be specialized
+        # Check that popping the attribute doesn't break it
+        m = ModuleType("test")
+        d = m.__dict__
+        count = 0
+        for _ in range(100):
+            m.attr = 1
+            count += m.attr # Might be specialized
+            d.pop("attr")
+        self.assertEqual(count, 100)
+
     # frozen and namespace module reprs are tested in importlib.