Hello,
I've got a fairly simple class instance that I'm pickling. I'm using setstate
to update the instance when I unpickle. Although the setstate doesn't seem to
be called upon unpickling... here's an example, if anyone see's what I'm doing
wrong, please let me know. Thanks!
so I say start out with this class:
class dog:
def __init__(self):
self.num_legs = 4
then I pickle the instance of:
sparky = dog()
then I update my dog class to:
class dog:
def __init__(self):
self.hair_color = 'brown'
self.num_legs = 4
def __setstate__(self, d):
if 'hair_color' not in d:
d['hair_color'] = 'brown'
self.__dict__.update(d)
print 'did this work?'
Now when I unpickle the original pickled object sparky I would hope to see
'did this work' and I would also hope that sparky would have updated to have
the attribute 'hair_color' but nothing of the sort happens. if just unpickles
sparky without updating the attributes as I was hoping.
Thanks!
Jeff
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