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bpo-46345: add a test case for implicit `Optional` class attribute by sobolevn · Pull Request #30535 · python/cpython · GitHub

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bpo-46345: add a test case for implicit Optional class attribute #30535

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Merged
gvanrossum merged 1 commit into from
Jan 12, 2022
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bpo-46345: add a test case for implicit Optional class attribute #30535

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6 changes: 6 additions & 0 deletions Lib/test/test_typing.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3116,6 +3116,12 @@ def test_get_type_hints_classes(self):
'my_inner_a2': mod_generics_cache.B.A,
'my_outer_a': mod_generics_cache.A})

def test_get_type_hints_classes_no_implicit_optional(self):
class WithNoneDefault:
field: int = None # most type-checkers won't be happy with it

self.assertEqual(gth(WithNoneDefault), {'field': int})

def test_respect_no_type_check(self):
@no_type_check
class NoTpCheck:
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