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Fixed #20212 - __reduce__ should only be defined for Py3+.

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This commit is contained in:
Daniel Lindsley 2013-05-20 22:17:56 -07:00
parent 4ba1c2e785
commit e24d486fbc
2 changed files with 40 additions and 5 deletions
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22
tests/utils_tests/test_simplelazyobject.py
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@ -161,3 +161,25 @@ class TestUtilsSimpleLazyObject(TestCase):
self.assertNotEqual(lazy1, lazy3)
self.assertTrue(lazy1 != lazy3)
self.assertFalse(lazy1 != lazy2)
def test_pickle_py2_regression(self):
from django.contrib.auth.models import User
# See ticket #20212
user = User.objects.create_user('johndoe', 'john@example.com', 'pass')
x = SimpleLazyObject(lambda: user)
# This would fail with "TypeError: can't pickle instancemethod objects",
# only on Python 2.X.
pickled = pickle.dumps(x)
# Try the variant protocol levels.
pickled = pickle.dumps(x, 0)
pickled = pickle.dumps(x, 1)
pickled = pickle.dumps(x, 2)
if not six.PY3:
import cPickle
# This would fail with "TypeError: expected string or Unicode object, NoneType found".
pickled = cPickle.dumps(x)