Server Chat Test

import socket, thread
def runcon(client, addr):
    global CONNECTION_LIST
    global SOCKET_LIST
    while True:
        try:
            message = client.recv(1024)
            if message == "/list":
                for listip in CONNECTION_LIST:
                        client.send(listip)
            else:
                for clientsocket in SOCKET_LIST:
                    if clientsocket != client:
                        clientsocket.send(message)
        except:
            CONNECTION_LIST.remove(addr[0])
            SOCKET_LIST.remove(client)
            print addr[0], "Closed!"
            break
if __name__ == '__main__':
    CONNECTION_LIST = []
    SOCKET_LIST = []
    mysocket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    mysocket.bind(("0.0.0.0", 8287))
    mysocket.listen(10)
    while True:
        try:
            client,addr = mysocket.accept()
        except KeyboardInterrupt:
            mysocket.close()
            exit("Socket server closed.")
        print addr[0], "connected!"
        CONNECTION_LIST.append(addr[0])
        SOCKET_LIST.append(client)
        try:
            thread.start_new_thread(runcon,(client,addr,))
        except:
            "Error =>", addr[0]