At Wednesday 8/11/2006 05:26, George Sakkis wrote:
Or you may have this done automatically by hacking the Set class:
from sets import Set
import cPickle as pickle
Set.__reduce__ = lambda self: (set, (self._data,))
s = Set([1,2,3])
x = pickle.dumps(s)
print pickle.loads(x)
This doesn't work though if you have already pickled the Set before
replacing its __reduce__, so it may not necessarily be what you want.
If there is a way around it, I'd like to know it.
Perhaps registering a suitable reduce function in the copy_reg module.
If the sets were pickled alone, and it's not too much trouble, using:
a_set = set(a_set) just after unpickling may be enough.
And if they were instance attributes, __setstate__ on the class can
do the conversion.
--
Gabriel Genellina
Softlab SRL
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