simple chat server

[Burakk]

Hi,

I am using ubuntu lucid and i have started to learn python(vrs 3.1). I
am trying to make a tutorial code(see below) work but when i run the
code, open a terminal window and connect as client with telnet and
type somethings and hit enter, give me error below...(the terminal
says connection closed by foreign host)

if someone can help i will be glad...

thanx

-- error: uncaptured python exception, closing channel
<__main__.ChatSession connected 127.0.0.1:46654 at 0xb71cce8c> (<class
'TypeError'>:expected an object with the buffer interface [/usr/lib/
python3.1/asyncore.py|read|75] [/usr/lib/python3.1/asyncore.py|
handle_read_event|420] [/usr/lib/python3.1/asynchat.py|handle_read|
170]) --

code

from asyncore import dispatcher
from asynchat import async_chat
import asyncore
import socket

PORT = 5005
NAME = 'TestChat'

class ChatSession(async_chat):

     def __init__(self, sock):
         async_chat.__init__(self, sock)
         self.set_terminator("xx")
         self.data = []


     def collect_incoming_data(self, data):
         self.data.append(data)


     def found_terminator(self):
         line = ''.join(self.data)
         self.data = []
         self.push(line)

class ChatServer(dispatcher):
      def __init__(self, port):
          dispatcher.__init__(self)
          self.create_socket(socket.AF_INET, socket.SOCK_STREAM)
          self.set_reuse_addr()
          self.bind(('', PORT))
          self.listen(5)
          self.sessions = []


      def handle_accept(self):
          conn, addr = self.accept()
          self.sessions.append(ChatSession(conn))

if __name__== '__main__':
    s = ChatServer(PORT)
    try: asyncore.loop()
    except KeyboardInterrupt : print