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gh-119180: Fix annotations lookup on classes with custom metaclasses #120719

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JelleZijlstra wants to merge 12 commits into from
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gh-119180: Fix annotations lookup on classes with custom metaclasses #120719

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6f71f30
gh-119180: Fix annotations lookup on classes with custom metaclasses
JelleZijlstra Jun 19, 2024
e468ce7
basic annotations descriptor
JelleZijlstra Jun 19, 2024
dfcb071
Expand prototype
JelleZijlstra Jun 19, 2024
1f1ec57
Merge remote-tracking branch 'upstream/main' into pep649-meta
JelleZijlstra Jun 20, 2024
c0a2668
add get/set
JelleZijlstra Jun 21, 2024
7f9d3ee
Merge remote-tracking branch 'upstream/main' into pep649-meta
JelleZijlstra Jun 21, 2024
20fb144
no more __annotations_cache__
JelleZijlstra Jun 21, 2024
832f6f3
Don't add __set__
JelleZijlstra Jun 21, 2024
1d3abff
fix leak
JelleZijlstra Jun 21, 2024
9969e99
fix test_descr
JelleZijlstra Jun 21, 2024
b845c0e
fix tests
JelleZijlstra Jun 21, 2024
73eb018
fix smelly
JelleZijlstra Jun 21, 2024
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no more __annotations_cache__
  • Loading branch information
@JelleZijlstra
JelleZijlstra committed Jun 21, 2024
commit 20fb1445b975f44a78f51ab43aaa5e7aa644d79d
16 changes: 8 additions & 8 deletions Lib/test/test_type_annotations.py
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Original file line number Diff line number Diff line change
Expand Up @@ -17,22 +17,22 @@ def test_lazy_create_annotations(self):
# a freshly created type shouldn't have an annotations dict yet.
foo = type("Foo", (), {})
for i in range(3):
self.assertFalse("__annotations_cache__" in foo.__dict__)
self.assertFalse("__annotations__" in foo.__dict__)
d = foo.__annotations__
self.assertTrue("__annotations_cache__" in foo.__dict__)
self.assertTrue("__annotations__" in foo.__dict__)
self.assertEqual(foo.__annotations__, d)
self.assertEqual(foo.__dict__['__annotations_cache__'], d)
self.assertEqual(foo.__dict__['__annotations__'], d)
del foo.__annotations__

def test_setting_annotations(self):
foo = type("Foo", (), {})
for i in range(3):
self.assertFalse("__annotations_cache__" in foo.__dict__)
self.assertFalse("__annotations__" in foo.__dict__)
d = {'a': int}
foo.__annotations__ = d
self.assertTrue("__annotations_cache__" in foo.__dict__)
self.assertTrue("__annotations__" in foo.__dict__)
self.assertEqual(foo.__annotations__, d)
self.assertEqual(foo.__dict__['__annotations_cache__'], d)
self.assertEqual(foo.__dict__['__annotations__'], d)
del foo.__annotations__

def test_annotations_getset_raises(self):
Expand All @@ -56,9 +56,9 @@ class C:
a:int=3
b:str=4
self.assertEqual(C.__annotations__, {"a": int, "b": str})
self.assertTrue("__annotations_cache__" in C.__dict__)
self.assertTrue("__annotations__" in C.__dict__)
del C.__annotations__
self.assertFalse("__annotations_cache__" in C.__dict__)
self.assertFalse("__annotations__" in C.__dict__)

def test_descriptor_still_works(self):
class C:
Expand Down