catch invisible friends on gtalk

gchat.py

 #gtalk.py

import xmpp

# Google Talk constants
FROM_GMAIL_ID = "username@gmail.com"
GMAIL_PASS = "secret passwd"
GTALK_SERVER = "gmail.com"

jid=xmpp.protocol.JID(FROM_GMAIL_ID)
C=xmpp.Client(jid.getDomain(),debug=[])

if not C.connect((GTALK_SERVER,5222)):
   raise IOError('Can not connect to server.')
if not C.auth(jid.getNode(),GMAIL_PASS):
   raise IOError('Can not auth with server.')

C.sendInitPresence(requestRoster=1)

def myPresenceHandler(con, event):
  if event.getType() == 'unavailable':
    print event.getFrom().getStripped()

C.RegisterHandler('presence', myPresenceHandler)
while C.Process(1):
 pass