from cookielib import CookieJar

from twisted.internet import reactor
from twisted.python import log
from twisted.web.client import Agent, CookieAgent

def displayCookies(response, cookieJar):
    print 'Received response'
    print response
    print 'Cookies:', len(cookieJar)
    for cookie in cookieJar:
        print cookie

def main():
    cookieJar = CookieJar()
    agent = CookieAgent(Agent(reactor), cookieJar)

    d = agent.request('GET', 'http://www.google.com/')
    d.addCallback(displayCookies, cookieJar)
    d.addErrback(log.err)
    d.addCallback(lambda ignored: reactor.stop())
    reactor.run()

if __name__ == "__main__":
    main()