cPickle works in standard interpreter, but not in IPython #29
Description
Original Launchpad bug 363115: https://bugs.launchpad.net/ipython/+bug/363115
Reported by: reckoner (reckoner).
For example in IPython:
class Mylist(list):
def __init__(self,x=[]):
list.__init__(self,x)
from cPickle import dumps
w=Mylist([1,2,3])
dumps(w)
PicklingError: Can't pickle <class '__main__.Mylist'>: attribute
lookup __main__.Mylist failed
However, using the standard Python interpreter:
Python 2.5.2 (r252:60911, Feb 21 2008, 13:11:45) [MSC v.1310 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> from cPickle import dumps
>>> class Mylist(list):
... def __init__(self,x=[]):
... list.__init__(self,x)
...
>>> w=Mylist([1,2,3])
>>> dumps(w)
'ccopy_reg\n_reconstructor\np1\n(c__main__\nMylist\np2\nc__builtin__\nlist\np3\n
(lp4\nI1\naI2\naI3\natRp5\n.'
>>>