distinction between unzipping bytes and unzipping a file

[webcomm]

On Jan 9, 2:49 pm, webcomm <rya... at gmail.com> wrote:
> decoded = base64.b64decode(datum)
> #datum is a base64 encoded string of data downloaded from a web
> service
> f = open('data.zip', 'wb')
> f.write(decoded)
> f.close()
> x = zipfile.ZipFile('data.zip', 'r')

Sorry, that code is not what I mean to paste.  This is what I
intended...

decoded = base64.b64decode(datum)
#datum is a base64 encoded string of data downloaded from a web
service
f = open('data.zip', 'wb')
f.write(decoded)
f.close()
x = popen("unzip data.zip")