Hello All,
I subclassed dict and overrode __setitem__. When instances are
unpickled, the __setstate__ is not called before the keys are assigned
via __setitem__ in the unpickling protocol.
I googled a bit and found that this a bug filed in 2003:
http://bugs.python.org/issue826897
It is still "open" with "normal" priority.
Am I missing something? Is there a workaround for this bug that makes
fixing it pointless or has it just fallen through the cracks for the
last 5 years?
Here is an example:
class DictPlus(dict):
def __init__(self, *args, **kwargs):
self.extra_thing = ExtraThingClass()
dict.__init__(self, *args, **kwargs)
def __setitem__(self, k, v):
do_something_with(self.extra_thing, k, v)
dict.__setitem__(self, k, v)
Upon unpickling, the error would be:
AttributeError: 'DictPlus' object has no attribute 'extra_thing'
I'm still using python 2.5.1.
James
--
James Stroud
UCLA-DOE Institute for Genomics and Proteomics
Box 951570
Los Angeles, CA 90095
http://www.jamesstroud.com
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http://mail.python.org/mailman/listinfo/python-list
