From b430e1db5f26d1de3a5cd0d6eae18603070fdab4 Mon Sep 17 00:00:00 2001 From: Ian Clelland Date: Fri, 28 Sep 2012 12:57:38 -0700 Subject: [PATCH] [1.5.x] Properly support pickling of LazyObjects in Python 3.3 Backport of 836cd26d7f3394452f1f5196eb26c99fef128a1a from master --- django/utils/functional.py | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/django/utils/functional.py b/django/utils/functional.py index 085a8fce59..505931e158 100644 --- a/django/utils/functional.py +++ b/django/utils/functional.py @@ -293,6 +293,16 @@ class SimpleLazyObject(LazyObject): self._setup() return self._wrapped.__dict__ + # Python 3.3 will call __reduce__ when pickling; these methods are needed + # to serialize and deserialize correctly. They are not called in earlier + # versions of Python. + @classmethod + def __newobj__(cls, *args): + return cls.__new__(cls, *args) + + def __reduce__(self): + return (self.__newobj__, (self.__class__,), self.__getstate__()) + # Need to pretend to be the wrapped class, for the sake of objects that care # about this (especially in equality tests) __class__ = property(new_method_proxy(operator.attrgetter("__class__")))