diff --git a/Lib/test/test_typing.py b/Lib/test/test_typing.py index 1da65162a0b300..2e59c5874383cc 100644 --- a/Lib/test/test_typing.py +++ b/Lib/test/test_typing.py @@ -4838,6 +4838,18 @@ class C(B[int]): x = pickle.loads(z) self.assertEqual(s, x) + # Test ParamSpec args and kwargs + global PP + PP = ParamSpec('PP') + for thing in [PP.args, PP.kwargs]: + for proto in range(pickle.HIGHEST_PROTOCOL + 1): + with self.subTest(thing=thing, proto=proto): + self.assertEqual( + pickle.loads(pickle.dumps(thing, proto)), + thing, + ) + del PP + def test_copy_and_deepcopy(self): T = TypeVar('T') class Node(Generic[T]): ...