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Refs #28389 -- Added release note and test for pickling of LazyObject when wrapped object doesn't have __reduce__().
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@ -15,3 +15,6 @@ Bugfixes
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* Fixed ``QuerySet.union()`` and ``difference()`` when combining with
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a queryset raising ``EmptyResultSet`` (:ticket:`28378`).
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* Fixed a regression in pickling of ``LazyObject`` on Python 2 when the wrapped
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object doesn't have ``__reduce__()`` (:ticket:`28389`).
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@ -184,11 +184,13 @@ class LazyObjectTestCase(TestCase):
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def test_pickle(self):
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# See ticket #16563
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obj = self.lazy_wrap(Foo())
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obj.bar = 'baz'
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pickled = pickle.dumps(obj)
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unpickled = pickle.loads(pickled)
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self.assertIsInstance(unpickled, Foo)
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self.assertEqual(unpickled, obj)
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self.assertEqual(unpickled.foo, obj.foo)
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self.assertEqual(unpickled.bar, obj.bar)
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# Test copying lazy objects wrapping both builtin types and user-defined
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# classes since a lot of the relevant code does __dict__ manipulation and
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