one more

JelleZijlstra · JelleZijlstra · commit d9169745afaa · 2023-04-23T15:48:57.000-06:00
diff --git a/Lib/test/test_type_params.py b/Lib/test/test_type_params.py
@@ -240,11 +240,10 @@ class ClassA[T](Generic[T]): ...
             exec(code, {})
 
     def test_traditional_02(self):
-        # This does not generate a runtime error, but it should be
-        # flagged as an error by type checkers.
         from typing import TypeVar
         S = TypeVar("S")
-        class ClassA[T](dict[T, S]): ...
+        with self.assertRaises(TypeError):
+            class ClassA[T](dict[T, S]): ...
 
     def test_traditional_03(self):
         # This does not generate a runtime error, but it should be
