cerr wrote:
> Hi,
>
> Can I somehow use pickle.dump() to store a dictionary of lists to a file?
> I tried this:
>
> >>> import pickle
> >>> mylist = []
> >>> mydict = {}
> >>> mylist = '1','2'
> >>> mydict['3'] = mylist
> >>> fhg = open ("test", 'w')
> >>> pickle.dump(fhg,mydict)
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> File "/usr/lib/python2.7/pickle.py", line 1370, in dump
> Pickler(file, protocol).dump(obj)
> File "/usr/lib/python2.7/pickle.py", line 203, in __init__
> self.write = file.write
> AttributeError: 'dict' object has no attribute 'write'
> >>> print mydict
> {'3': ('1', '2')}
>
> or should I just write my own dump function that can hanle thiS?
>
> Please advise!
>
> Thanks,
> Ron
I think you have the parameters for dump backwards.
According to API http://docs.python.org/2/library/pickle.html#pickle.dump
the format is: pickle.dump(obj, file, protocol=None)
Which means you need to use: pickle.dump(mydict, fhg)
Ramit
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