An example of using Jabber/XMPP communication with Python

jabtest.py

import sleekxmpp

class Jabber(sleekxmpp.ClientXMPP):
    def __init__(self, username, password, instance_name=None):
        jid = "%s/%s" % (username, instance_name) if instance_name else username
        super(Jabber, self).__init__(jid, password)

        self.instance_name = instance_name
        self.add_event_handler('session_start', self.start, threaded=False, disposable=True)
        self.add_event_handler('message', self.receive, threaded=True, disposable=False)

        if self.connect(('talk.google.com', '5222')):
            print "Opened XMPP Connection"
            self.process(block=False)
        else:
            raise Exception("Unable to connect to Google Jabber server")

    def __del__(self):
        self.close()

    def close(self):
        print "Closing XMPP Connection"
        self.disconnect(wait=False)

    def start(self, event):
        self.send_presence()
        self.get_roster()

    def send_msg(self, recipient, body):
        message = self.Message()
        message['to'] = recipient
        message['type'] = 'chat'
        message['body'] = body

        print "Sending message: %s" % message
        message.send()

    def receive(self, message):
        if message['type'] in ('chat', 'normal'):
            print "XMPP Message: %s" % message
            from_account = "%s@%s" % (message['from'].user, message['from'].domain)
            print "%s received message from %s" % (self.instance_name, from_account)

            if self.instance_name in message['body'].lower():
                print "Caught test message: %s" % message
                message.reply("%s was listening!" % self.instance_name).send()
            else:
                print "Uncaught command from %s: %s" % (from_account, message['body'])