import websocket

try:
    import thread
except ImportError:
    import _thread as thread
import time

def on_message (ws, message):
    print (message)

def on_error (ws, error):
    print (error)

def on_close (ws):
    print ("### closed ###")

def on_open (ws):
    def run (*args):
        for i in range (3):
            time.sleep (1)
            ws.send ("Hello %d" % i, 2)
        time.sleep (1)
        ws.close ()
        print ("thread terminating...")
    thread.start_new_thread (run, ())


if __name__ == "__main__":
    ws = websocket.WebSocketApp ("ws://127.0.0.1:80/",
                                 on_message = on_message,
                                 on_error = on_error,
                                 on_close = on_close)
    ws.on_open = on_open
    ws.run_forever ()