[Tutor] I sure do love cookies.

Liam Clarke cyresse at gmail.com
Tue Jul 5 03:41:52 CEST 2005


Denise, if you're handling cookies client side, then this is how to do it 
(code snippets taken from 
http://www.voidspace.org.uk/python/articles/cookielib.shtml as I'm at work.)

import os.path
import urllib2
import cookielib

COOKIEFILE = 'cookies.lwp'
# the path and filename to save your cookies in

urlopen = urllib2.urlopen
Request = urllib2.Request
cj = cookielib.LWPCookieJar()
# This is a subclass of FileCookieJar
# that has useful load and save methods

if os.path.isfile(COOKIEFILE):
# if we have a cookie file already saved
# then load the cookies into the Cookie Jar

opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cj))

#The above two lines initialise a opener which can handle cookies, and will 
use our cookie jar

theurl = 'http://www.google.co.uk/search?hl=en&ie=UTF-8&q=voidspace&meta='
# an example url that sets a cookie,
# try different urls here and see the cookie collection you can make !

txdata = None
# if we were making a POST type request,
# we could encode a dictionary of values here,
# using urllib.urlencode(somedict)

txheaders = {'User-agent' : 'Mozilla/4.0 (compatible; MSIE 5.5; Windows NT)'
# fake a user agent, some websites (like google) don't like automated 

req = Request(theurl, txdata, txheaders)
# create a request object

handle = urlopen(req)
# and open it to return a handle on the url

except IOError, e:
print 'We failed to open "%s".' % theurl
if hasattr(e, 'code'):
print 'We failed with error code - %s.' % e.code
elif hasattr(e, 'reason'):
print "The error object has the following 'reason' attribute :"
print e.reason
print "This usually means the server doesn't exist,',
print "is down, or we don't have an internet connection."

print 'Here are the headers of the page :'
print handle.info()
# handle.read() returns the page
 # handle.geturl() returns the true url of the page fetched
 # (in case urlopen has followed any redirects, which it sometimes does)

if cj is None:
print "We don't have a cookie library available - sorry."
print "I can't show you any cookies."
print 'These are the cookies we have received so far :'
for index, cookie in enumerate(cj):
print index, ' : ', cookie


Phew! A bit of code, but that shows a simple usage(!) of it.

Good luck.

On 7/5/05, Kent Johnson <kent37 at tds.net> wrote:
> Danny Yoo wrote:
> > To make cookies, in the examples of the Cookie module will probably help
> > the most:
> >
> > http://www.python.org/doc/lib/cookie-example.html
> >
> >>From the documentation, it sounds like Cookie.SimpleCookie is what 
> you're
> > looking for:
> My understanding is that the Cookie module is for server-side cookie 
> handling. cookielib.Cookie integrates with cookielib.CookieJar for 
> client-side cookie handling which is what Denise is looking for. Though 
> possibly I am missing something...
> Kent
> _______________________________________________
> Tutor maillist - Tutor at python.org
> http://mail.python.org/mailman/listinfo/tutor

'There is only one basic human right, and that is to do as you damn well 
And with it comes the only basic human duty, to take the consequences.'
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