gistfile1.py

#!/usr/bin/env python
from twisted.internet import reactor
from twisted.web import client
import urllib2

def printPage(data):
    print data
    reactor.stop()

def printError(failure):
    print 'Error: %s' % failure.getErrorMessage()
    reactor.stop()

def get(callbackfunc,errfunc = printError):

    u = urllib2.HTTPPasswordMgr()
    u.add_password('Twitter API', 'http://twitter.com/', 'user', 'pass')
    d = client.getPage('http://twitter.com/statuses/friends_timeline.json', passwdMgr=u)
    #d = client.getPage('http://twitter.com/statuses/public_timeline.json')
    d.addCallback(callbackfunc)
    d.addErrback(errfunc)
    reactor.run()

def main():
    get(printPage)

if __name__ == "__main__":
    main()