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Issue #24931: Resolve __dict__ conflict in namedtuple subclasses.

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This commit is contained in:
Raymond Hettinger 2015-08-30 09:13:48 -07:00
parent 1a83746418
commit 7a3602e7cf
4 changed files with 19 additions and 14 deletions
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12
Lib/test/test_collections.py
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@ -225,7 +225,6 @@ class TestNamedTuple(unittest.TestCase):
self.assertEqual(p._fields, ('x', 'y')) # test _fields attribute
self.assertEqual(p._replace(x=1), (1, 22)) # test _replace method
self.assertEqual(p._asdict(), dict(x=11, y=22)) # test _asdict method
self.assertEqual(vars(p), p._asdict()) # verify that vars() works
try:
p._replace(x=1, error=2)
@ -380,6 +379,17 @@ class TestNamedTuple(unittest.TestCase):
globals().pop('NTColor', None) # clean-up after this test
def test_namedtuple_subclass_issue_24931(self):
class Point(namedtuple('_Point', ['x', 'y'])):
pass
a = Point(3, 4)
self.assertEqual(a._asdict(), OrderedDict([('x', 3), ('y', 4)]))
a.w = 5
self.assertEqual(a.__dict__, {'w': 5})
################################################################################
### Abstract Base Classes
################################################################################