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[3.10] bpo-44468: Never skip base classes in typing.get_type_hints(), even with invalid .__module__. (GH-26862) (GH-26920)

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(cherry picked from commit 7569c0fe91)


Co-authored-by: will-ca <willchencontact@gmail.com>

Automerge-Triggered-By: GH:gvanrossum
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Miss Islington (bot) 2021-06-26 16:52:28 -07:00 • committed by GitHub
parent 6cd369c48f
commit 3df23b5199
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3 changed files with 21 additions and 11 deletions
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25
Lib/test/test_typing.py
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@ -2276,13 +2276,6 @@ class ClassVarTests(BaseTestCase):
with self.assertRaises(TypeError):
issubclass(int, ClassVar)
def test_bad_module(self):
# bpo-41515
class BadModule:
pass
BadModule.__module__ = 'bad' # Something not in sys.modules
self.assertEqual(get_type_hints(BadModule), {})
class FinalTests(BaseTestCase):
def test_basics(self):
@ -3032,6 +3025,24 @@ class GetTypeHintTests(BaseTestCase):
# This previously raised an error under PEP 563.
self.assertEqual(get_type_hints(Foo), {'x': str})
def test_get_type_hints_bad_module(self):
# bpo-41515
class BadModule:
pass
BadModule.__module__ = 'bad' # Something not in sys.modules
self.assertNotIn('bad', sys.modules)
self.assertEqual(get_type_hints(BadModule), {})
def test_get_type_hints_annotated_bad_module(self):
# See https://bugs.python.org/issue44468
class BadBase:
foo: tuple
class BadType(BadBase):
bar: list
BadType.__module__ = BadBase.__module__ = 'bad'
self.assertNotIn('bad', sys.modules)
self.assertEqual(get_type_hints(BadType), {'foo': tuple, 'bar': list})
class GetUtilitiesTestCase(TestCase):
def test_get_origin(self):