import socket, time
SERVER_IP = "127.0.0.1"
CLIENT_IP = "127.0.0.1"
SERVER_PORT = 15000
CLIENT_PORT = 15001

while(1):
    sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    sock.settimeout(5)
    sock.bind(("0.0.0.0",SERVER_PORT))
    sock.sendto(str(time.time()), (CLIENT_IP, CLIENT_PORT))
    try:
        (inMessage, address) = sock.recvfrom(1024)
    except socket.timeout:
        inMessage = None
    except socket.error:
        print "Socket error!"
        inMessage = None
    time.sleep(1)