tornado websocket server

websocket_server.py

import tornado
import tornado.websocket

class EchoWebSocket(tornado.websocket.WebSocketHandler):

    def open(self):
        print("WebSocket opened")

    def on_message(self, message):
        print message
        self.write_message(u"You said: " + message)

    def on_close(self):
        print("WebSocket closed")


if __name__=='__main__':
    app = tornado.web.Application([
        (r'/', EchoWebSocket),
    ])
    app.listen(8000)
    tornado.ioloop.IOLoop.current().start()