[issue5794] pickle/cPickle of recursive tuples create pickles that cPickle can't load
Collin Winter
report at bugs.python.org
Fri Apr 24 18:51:25 CEST 2009
Collin Winter <collinw at gmail.com> added the comment:
Interestingly, it only fails with protocol 0:
>>> v = ([],)
>>> v[0].append(v)
>>> import pickle,cPickle
>>> cPickle.loads(pickle.dumps(v, 0))
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
cPickle.UnpicklingError: unpickling stack underflow
>>> cPickle.loads(pickle.dumps(v, 1))
([([...],)],)
>>> cPickle.loads(pickle.dumps(v, 2))
([([...],)],)
>>>
I'll see if I can come up with a fix.
----------
assignee: -> collinwinter
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<http://bugs.python.org/issue5794>
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