[Tutor] extracting a cPickle/pickle file from inside a zip file

[diliup gabadamudalige]

http://stackoverflow.com/questions/3006727/load-a-pickle-file-from-a-zipfile

zf = czipfile.ZipFile(r"cpickletest.zip")
pyfromzip = zf.read ("cPickletest.py", pwd="python")
print pyfromzip, type(pyfromzip)

this prints the following to the console

(dp1
S'kola.jpg'
p2
S'CSVTQq#w. at lm'
p3
sS'p2.jpg'
p4
S'CSVT$S. at lm'
p5
sS'p1.jpg'
p6
S'CSVT3S. at lm'
p7
s. <type 'str'>

most probably this is the dictionary file written to disk as the keys and
values are all there.

now if i do this

outfile = cStringIO.StringIO()
outfile.write(pyfromzip)
z=cPickle.load(outfile)
it returns -> EOFError:



I tried various experiments and the code below worked.

filenames # this is a dictionary
with open(p + "\\coded\\" + name_py,"wb") as outfile:
            cPickle.dump(str(filenames), outfile) # pickled dumped the
dictionary as a string

now the file is locked up in a pwd prtected zipfile using winrar

zf = czipfile.ZipFile(r"cpickletest.zip")
pyfromzip = zf.read ("cPickletest.py", pwd="password")
c = pyfromzip.partition('"')[-1].rpartition('"')[0]
c = eval(c)
print c, type(c) # this gave back the original dictionary

can someone think of a better way?




On Fri, Aug 29, 2014 at 6:25 PM, diliup gabadamudalige <diliupg at gmail.com>
wrote:

> Alan, thanks for the reply.
> nope. I tried both ways. Btw I am using Python 2.7.8.
> This seem to be a problem with python itself.
>
>
> http://stackoverflow.com/questions/3006727/load-a-pickle-file-from-a-zipfile
>
> zf = czipfile.ZipFile(r"cpickletest.zip")
> pyfromzip = zf.read ("cPickletest.py", pwd="python")
> print pyfromzip, type(pyfromzip)
>
> this prints the following to the console
>
> (dp1
> S'kola.jpg'
> p2
> S'CSVTQq#w. at lm'
> p3
> sS'p2.jpg'
> p4
> S'CSVT$S. at lm'
> p5
> sS'p1.jpg'
> p6
> S'CSVT3S. at lm'
> p7
> s. <type 'str'>
>
> most probably this is the dictionary file written to disk as the keys and
> values are all there.
>
> now if i do this
>
> outfile = cStringIO.StringIO()
> outfile.write(pyfromzip)
> z=cPickle.load(outfile)
> it returns -> EOFError:
>
>
>
> On Fri, Aug 29, 2014 at 5:01 PM, Alan Gauld <alan.gauld at btinternet.com>
> wrote:
>
>> On 29/08/14 10:00, diliup gabadamudalige wrote:
>>
>>  pload = cPickle.load(zf.open("my.py",pwd=password))
>>> this gives an EOF
>>>
>>> . Does any body know why?
>>>
>>
>> I've never used zipfile so I don't know, but could it be
>> related to the fact that your pickle file is binary?
>> Do you need any flags to tell zipfile that you're
>> extracting a binary file?
>>
>> Just a thought,
>>
>> --
>> Alan G
>> Author of the Learn to Program web site
>> http://www.alan-g.me.uk/
>> http://www.flickr.com/photos/alangauldphotos
>>
>> _______________________________________________
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>>
>
>
>
> --
> Diliup Gabadamudalige
>
> http://www.diliupg.com
> http://soft.diliupg.com/
>
>
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-- 
Diliup Gabadamudalige

http://www.diliupg.com
http://soft.diliupg.com/

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