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|---|---|
| From | John Gordon <gordon@panix.com> |
| Newsgroups | comp.lang.python |
| Subject | Re: dump a multi dimensional dictionary |
| Date | Fri, 26 Jul 2013 21:00:24 +0000 (UTC) |
| Organization | PANIX Public Access Internet and UNIX, NYC |
| Lines | 32 |
| Message-ID | <ksuo18$g5u$1@reader1.panix.com> (permalink) |
| References | <efdc6f6b-c061-4d3d-9d02-c397f8953d93@googlegroups.com> |
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In <efdc6f6b-c061-4d3d-9d02-c397f8953d93@googlegroups.com> cerr <ron.eggler@gmail.com> writes:
> 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?
I think you have the arguments to pickle.dump() in the wrong order.
The data to be dumped should come first, then the file object.
--
John Gordon A is for Amy, who fell down the stairs
gordon@panix.com B is for Basil, assaulted by bears
-- Edward Gorey, "The Gashlycrumb Tinies"
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dump a multi dimensional dictionary cerr <ron.eggler@gmail.com> - 2013-07-26 13:21 -0700 Re: dump a multi dimensional dictionary John Gordon <gordon@panix.com> - 2013-07-26 21:00 +0000 RE: dump a multi dimensional dictionary "Prasad, Ramit" <ramit.prasad@jpmorgan.com> - 2013-07-26 20:40 +0000 Re: dump a multi dimensional dictionary Chris Angelico <rosuav@gmail.com> - 2013-07-27 00:33 +0100 Re: dump a multi dimensional dictionary Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2013-07-27 02:54 +0000
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