inelegant2

import urllib2, json

STREAM_URL ="http://chirpstream.twitter.com/2b/user.json"
REST_URL = "http://api.twitter.com/1/"

class Client:
        def __init__(self):
                self.friends = []
                self.buffer = ""
                self.userid = None
                password_mgr = urllib2.HTTPPasswordMgrWithDefaultRealm()
                handler = urllib2.HTTPBasicAuthHandler(password_mgr)
                opener = urllib2.build_opener(handler, self.on_receive)
                urllib2.install_opener(opener)

        def authenticate(self, username, password):
                password_mgr.add_password(None, REST_URL + "account/verify_credentials.json", username, password)
                password_mgr.add_password(None, STREAM_URL, username, password)
                password_mgr.add_password(None, REST_URL, username, password)

                data = json.load(urlopen(REST_URL + "account/verify_credentials.json"))
                if "error" in data: return False
                self.userid = data["id"]
                return True

        def connect(self):
                urlopen(STREAM_URL, None, 45)

        def on_receive(self, data):
                self.buffer += data
                if data.endswith("\r\n") and self.buffer.strip():
                        content = json.loads(self.buffer)
                        self.buffer = ""

                if "friends" in content:
                        self.friends = content["friends"]

                elif "text" in content:
                        to = content["in_reply_to_user"]
                        if to and to != self.userid and to not in self.friends: return
                        if to == self.userid: print("(REPLY)"),
                        print (content["user_name"],": ", content["text"])


client = Client()
if client.authenticate("BLKress", "lycos.gsv"):
        client.connect()
else:
        print ("Login credentials are not valid!")