From dd41f933200637c4cf7575daa42ed08c369e97f6 Mon Sep 17 00:00:00 2001 From: "Miss Islington (bot)" <31488909+miss-islington@users.noreply.github.com> Date: Tue, 5 May 2026 17:25:23 +0200 Subject: [PATCH] [3.14] gh-149410: Test that `typing.NoDefault` is final (GH-149411) (#149419) gh-149410: Test that `typing.NoDefault` is final (GH-149411) (cherry picked from commit bad9296fb0424bc480fa0ecfd2d60f73c33358f5) Co-authored-by: sobolevn --- Lib/test/test_typing.py | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Lib/test/test_typing.py b/Lib/test/test_typing.py index 2c6a5c74660..2c99b221e52 100644 --- a/Lib/test/test_typing.py +++ b/Lib/test/test_typing.py @@ -10859,6 +10859,10 @@ class NoDefaultTests(BaseTestCase): with self.assertRaises(AttributeError): type(NoDefault).foo + def test_no_subclassing(self): + with self.assertRaises(TypeError): + class Test(type(NoDefault)): ... + class AllTests(BaseTestCase): """Tests for __all__."""