sockets.py

#!/usr/bin/env python

import socket, threading, sys

class ClientThread(threading.Thread):

    def __init__(self, ip, port, socket, thread_id):
        threading.Thread.__init__(self)
        self.ip = ip
        self.port = port
        self.socket = socket
        self.thread_id = thread_id
        print self.tid() + "New thread started for "+ip+":"+str(port)

    def run(self):
        print self.tid() + "Connection from : "+ip+":"+str(port)

        clientsock.send("\nWelcome to the server, " + self.tid() + "\n")

        data = "dummydata"

        while len(data):
            data = clientsock.recv(2048)
            print self.tid() + "Client sent: " + data,
            clientsock.send("You sent me: "+data)

        print self.tid() + "Client disconnected..."

    def tid(self):
        return "[" + str(self.thread_id) + "] "


host = "0.0.0.0"
port = 2003


tcpsock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
tcpsock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

tcpsock.bind((host,port))
tcpsock.listen(5)

lastid = 1


try:
    while True:
        print "listening..."
        (clientsock, (ip, port)) = tcpsock.accept()
        ct = ClientThread(ip, port, clientsock, lastid)
        ct.daemon=True
        ct.start()
        lastid = lastid+1
except:
    tcpsock.close()
    sys.exit()