simple UnZip

[Chris]

On Jul 2, 3:39 pm, noydb <jenn.du... at gmail.com> wrote:
> Can someone help me with this script, which I found posted elsewhere?
> I'm trying to figure out what is going on here so that I can alter it
> for my needs, but the lack of descriptive names is making it
> difficult.  And, the script doesn't quite do anything worthwhile -- it
> unzips one file from a zipfile, not all files in a zipfile.
>
> ***
> import zipfile, os, sys, glob
>
> os.chdir("C:\\Temp")
> zips = glob.glob('*.zip')
>
> for fzip in zips:
>     if zipfile.is_zipfile(fzip):
>         print fzip," is a zip"
>         z = zipfile.ZipFile(fzip,'r')
>         lstName = z.namelist()
>         sHgt = lstName[0]
>         print "Unpacking",sHgt
>         hgt = z.read(sHgt)
>         fHgt = open(sHgt,'wb')
>         fHgt.write(hgt)
>         # fHgt.flush
>         fHgt.close
> print "Finished"
> ***
>
> I changed it somewhat to
> &&&
> import zipfile, os, sys
>
> event_zip = ("C:\\Temp\\data4event.zip")
>
> z = zipfile.ZipFile(event_zip, 'r')
>
> zList = z.namelist()
>
> for zItem in zList:
>     print "Unpacking",zItem
>     zRead = z.read(zItem)
>     z1File = open(zItem,'wb')
>     z1File.write(zRead)
>     z1File.close
> print "Finished"
> &&&
>
> This works, but I want to be able to specify a different output
> location.
>
> The scenario is that the zip file will always be the same (gets copied
> over daily), but it needs to be unzipped to a specific different
> directory.
>
> Can anyone help?
>
> Thanks!

Well, how is the output directory different ?  Is it just a timestamp
like 'YYYYMMDD' that obviously changes every day or is it named after
the file used ?  If it is timestamp style you can do

import zipfile, os, sys, time

folder_name = time.strftime("%Y%m%d", time.localtime(time.time()))
event_zip = ("C:\\Temp\\data4event.zip")

z = zipfile.ZipFile(event_zip, 'r')

zList = z.namelist()

for zItem in zList:
    print "Unpacking",zItem
    zRead = z.read(zItem)
    z1File = open(os.path.join(folder_name, zItem),'wb')
    z1File.write(zRead)
    z1File.close
print "Finished"

That will create a folder in your current working directory with the
name of todays date and unzip it there.  This is just one example
route.