from socket import *
def main():
    s = socket(AF_INET, SOCK_STREAM)
    s.bind(('', 50007))   # port number
    s.listen(1)
    conn, (remotehost, remoteport) = s.accept()
    print 'connected by', remotehost, remoteport
    while 1:
        data = conn.recv(1024)   # buffer size
        if not data: break
        conn.send(data)
    conn.close()

main()