[Python-checkins] gh-92106: Add test that subscription works on arbitrary TypedDicts (#92176)
JelleZijlstra
webhook-mailer at python.org
Mon May 2 18:38:49 EDT 2022
https://github.com/python/cpython/commit/81fb3548be5a18bf40a6f4505a02cc7fb72c9c34
commit: 81fb3548be5a18bf40a6f4505a02cc7fb72c9c34
branch: main
author: Serhiy Storchaka <storchaka at gmail.com>
committer: JelleZijlstra <jelle.zijlstra at gmail.com>
date: 2022-05-02T16:38:39-06:00
summary:
gh-92106: Add test that subscription works on arbitrary TypedDicts (#92176)
files:
M Lib/test/test_typing.py
diff --git a/Lib/test/test_typing.py b/Lib/test/test_typing.py
index 88be2850acb1c..cb7ca3610b06a 100644
--- a/Lib/test/test_typing.py
+++ b/Lib/test/test_typing.py
@@ -6024,6 +6024,19 @@ def test_get_type_hints(self):
{'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 RequiredTests(BaseTestCase):
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