From 7e55730e3f0a0c8c1b73037011e4b00dd7bd7f69 Mon Sep 17 00:00:00 2001 From: "Miss Islington (bot)" <31488909+miss-islington@users.noreply.github.com> Date: Mon, 2 May 2022 18:05:49 -0700 Subject: gh-92106: Add test that subscription works on arbitrary TypedDicts (GH-92176) (cherry picked from commit 81fb3548be5a18bf40a6f4505a02cc7fb72c9c34) Co-authored-by: Serhiy Storchaka --- Lib/test/test_typing.py | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/Lib/test/test_typing.py b/Lib/test/test_typing.py index 08eddb0..3fec59a 100644 --- a/Lib/test/test_typing.py +++ b/Lib/test/test_typing.py @@ -4076,6 +4076,19 @@ class TypedDictTests(BaseTestCase): {'a': typing.Optional[int], 'b': int} ) + def test_non_generic_subscript(self): + # For backward compatibility, subscription works + # on arbitrary TypedDict types. + class TD(TypedDict): + a: T + A = TD[int] + self.assertEqual(A.__origin__, TD) + self.assertEqual(A.__parameters__, ()) + self.assertEqual(A.__args__, (int,)) + a = A(a = 1) + self.assertIs(type(a), dict) + self.assertEqual(a, {'a': 1}) + class IOTests(BaseTestCase): -- cgit v0.12