mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-09-26 10:19:53 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 8

[3.14] gh-133701: Fix incorrect __annotations__ on TypedDict defined under PEP 563 (GH-133772) (#134003)

Browse source 
gh-133701: Fix incorrect `__annotations__` on TypedDict defined under PEP 563 (GH-133772)
(cherry picked from commit 9836503b48)

Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
This commit is contained in:
Miss Islington (bot) 2025-05-14 15:54:29 +02:00 • committed by GitHub
parent a962934106
commit d6cb8fa86e
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
4 changed files with 41 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

30
Lib/test/test_typing.py
View file

@ -8538,6 +8538,36 @@ class TypedDictTests(BaseTestCase):
self.assertEqual(Child.__required_keys__, frozenset(['a']))
self.assertEqual(Child.__optional_keys__, frozenset())
def test_inheritance_pep563(self):
def _make_td(future, class_name, annos, base, extra_names=None):
lines = []
if future:
lines.append('from __future__ import annotations')
lines.append('from typing import TypedDict')
lines.append(f'class {class_name}({base}):')
for name, anno in annos.items():
lines.append(f' {name}: {anno}')
code = '\n'.join(lines)
ns = run_code(code, extra_names)
return ns[class_name]
for base_future in (True, False):
for child_future in (True, False):
with self.subTest(base_future=base_future, child_future=child_future):
base = _make_td(
base_future, "Base", {"base": "int"}, "TypedDict"
)
self.assertIsNotNone(base.__annotate__)
child = _make_td(
child_future, "Child", {"child": "int"}, "Base", {"Base": base}
)
base_anno = ForwardRef("int", module="builtins") if base_future else int
child_anno = ForwardRef("int", module="builtins") if child_future else int
self.assertEqual(base.__annotations__, {'base': base_anno})
self.assertEqual(
child.__annotations__, {'child': child_anno, 'base': base_anno}
)
def test_required_notrequired_keys(self):
self.assertEqual(NontotalMovie.__required_keys__,
frozenset({"title"}))