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Issue #27366: Implement PEP 487

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- __init_subclass__ called when new subclasses defined
- __set_name__ called when descriptors are part of a
  class definition
This commit is contained in:
Nick Coghlan 2016-07-30 16:26:03 +10:00
parent f6daa690e4
commit d78448e912
9 changed files with 411 additions and 24 deletions
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20
Lib/test/test_builtin.py
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@ -1699,21 +1699,11 @@ class TestType(unittest.TestCase):
self.assertEqual(x.spam(), 'spam42')
self.assertEqual(x.to_bytes(2, 'little'), b'\x2a\x00')
def test_type_new_keywords(self):
class B:
def ham(self):
return 'ham%d' % self
C = type.__new__(type,
name='C',
bases=(B, int),
dict={'spam': lambda self: 'spam%s' % self})
self.assertEqual(C.__name__, 'C')
self.assertEqual(C.__qualname__, 'C')
self.assertEqual(C.__module__, __name__)
self.assertEqual(C.__bases__, (B, int))
self.assertIs(C.__base__, int)
self.assertIn('spam', C.__dict__)
self.assertNotIn('ham', C.__dict__)
def test_type_nokwargs(self):
with self.assertRaises(TypeError):
type('a', (), {}, x=5)
with self.assertRaises(TypeError):
type('a', (), dict={})
def test_type_name(self):
for name in 'A', '\xc4', '\U0001f40d', 'B.A', '42', '':