Minimum xmpp connexion with twisted

twisted_xmpp_connect.py

from twisted.internet import reactor
from twisted.python.syslog import startLogging
from twisted.words.protocols.jabber.client import XMPPAuthenticator
from twisted.words.protocols.jabber.jid import JID
from twisted.words.protocols.jabber.xmlstream import XmlStreamFactory
from wokkel.subprotocols import StreamManager, XMPPHandler


startLogging()
factory = XmlStreamFactory(XMPPAuthenticator(JID('user@localhost'), u'pass123'))
manager = StreamManager(factory)
manager.logTraffic=True

class PresenceHandler(XMPPHandler):
    def connectionInitialized(self):
        self.send('<presence/>')


handler = PresenceHandler()
handler.setHandlerParent(manager)

reactor.connectTCP('localhost', 5222,  factory)
reactor.run()