bpo-41780: Fix __dir__ of types.GenericAlias (GH-22262)
Automerge-Triggered-By: @gvanrossum
(cherry picked from commit 2e87774df1a0eaf2a1fe8cc4d958df60f7125b6e)
Co-authored-by: Batuhan Taskaya <isidentical@gmail.com>
diff --git a/Lib/test/test_genericalias.py b/Lib/test/test_genericalias.py
index 4f3798e..ec1acd4 100644
--- a/Lib/test/test_genericalias.py
+++ b/Lib/test/test_genericalias.py
@@ -283,6 +283,11 @@
self.assertEqual(a.__args__, (list[T], tuple[T, ...]))
self.assertEqual(a.__parameters__, (T,))
+ def test_dir(self):
+ dir_of_gen_alias = set(dir(list[int]))
+ self.assertTrue(dir_of_gen_alias.issuperset(dir(list)))
+ for generic_alias_property in ("__origin__", "__args__", "__parameters__"):
+ self.assertIn(generic_alias_property, dir_of_gen_alias)
if __name__ == "__main__":
unittest.main()