Python - Simple TCP chatting Server/Client

cli.py

#!/usr/bin/python
# -*- coding: utf-8 -*-

'''
Created on 2013. 8. 5.

@author: kangstar
'''

from socket import *
import thread, time
import msvcrt as m

def recvMsg(sock):
    while True:
        recvmsg = sock.recv(1024)
        print '<Server>>> ' + recvmsg

if __name__ == '__main__':
    host = raw_input('HOST(default:localhost): ')
    port = raw_input('PORT(default:8008): ')
    
    host = host if (len(host) > 0) else 'localhost'
    port = int(port) if (len(port) > 0) else 8008
    
    try:
        s = socket(AF_INET, SOCK_STREAM) 
        s.connect((host, port))
        
        thread.start_new_thread(recvMsg, (s, )) 
        
        time.sleep(1)
        nickmsg = raw_input('My Nickname: ')
        s.send(nickmsg)
        
        time.sleep(2)
        print 'Wait!...'
        
        while True:
            if m.getch() != '\r':
                continue
            sendmsg = raw_input(' - Send: ')
            if sendmsg == 'exit()':
                break
            s.send(sendmsg)
        
        s.close()
    except:
        print 'Wrong address!'

    raw_input('Exit client (Press any key!)')

srv.py

#!/usr/bin/python
# -*- coding: utf-8 -*-

'''
Created on 2013. 8. 5.

@author: kangstar
'''

from time import *
from SocketServer import *

HOST = ''
PORT = 8008
userlist = []
namelist = []
addr = (HOST, PORT)

def now():
    return ctime(time())

def welcome():
    return '''Welcome Kangstar Server
    Local time is %s, %i user(s) online:%s
    ''' %(now(), len(userlist), repr(namelist))
    

class ClientHandler(BaseRequestHandler):
    def handle(self):
        userlist.append(self.request)
        self.setnick()
        sleep(3)
        print self.connection()
        self.request.send(welcome())
        self.broadcast(self.connection())
        
        print '[%i users online]\n' % len(userlist)
        
        while True:
            try:
                data = self.request.recv(1024)
                print '%s(%s): "%s"' % (self.nickname, self.client_address[0], data)
                outgoing = '%s: %s' % (self.nickname, data)
                self.broadcast(outgoing)
                
            except:
                print self.disconnection()
                userlist.remove(self.request)
                namelist.remove(self.nickname)
                self.broadcast(self.disconnection())
                self.request.close()
                print '[%i user(s) online]\n' % len(userlist)
                
                return
        
    def broadcast(self, data):
        for user in userlist:
            user.send(data)
    
    def disconnection(self):
        return '(%s)%s disconnected at %s\n' % (self.nickname, self.client_address[0], now())
    
    def connection(self):
        return '(%s)%s connected at %s\n' % (self.client_address[0], self.nickname, now())
    
    def setnick(self):
        self.request.send('Send your nickname!')
        self.nickname = self.request.recv(1024)
        self.request.send('Welcome, %s!\n' % self.nickname)
        namelist.append(self.nickname)

server = ThreadingTCPServer(addr, ClientHandler)

if __name__ == '__main__':
    print welcome()
    print 'Server started. Listening for connections on port %i...\n' % PORT
    server.serve_forever()