pequeña demo de websockets en python con Tornado web... bastante incompleta por cierto

Tornado_websocket.py

import logging
import tornado.auth
import tornado.escape
import tornado.httpserver
import tornado.ioloop
import tornado.options
import tornado.web
import os.path
import uuid
from tornado import websocket

from tornado.options import define, options

define("port", default=8888, help="run on the given port", type=int)
websockets = []

class webapp(websocket.WebSocketHandler):
    def open(self):
        print "WebSocket opened"
        if self not in websockets:
            websockets.append(self)

    def on_message(self, message):
        self.write_message("Me: " + message)
        print "WebSocket message="+message
        for websock in websockets:
            if websock != self:
                websock.write_message("other:" + message)

    def on_close(self):
        print "WebSocket closed"

class Application(tornado.web.Application):
    def __init__(self):
        handlers = [
            (r"/", webapp),
        ]
        settings = dict(
            cookie_secret="43oETzKXQAGaYdkL5gEmGeJJFuYh7EQnp2XdTP1o/Vo=",
            xsrf_cookies=True,
        )
        tornado.web.Application.__init__(self, handlers, **settings)


def main():
    tornado.options.parse_command_line()
    app = Application()
    app.listen(options.port)
    tornado.ioloop.IOLoop.instance().start()


if __name__ == "__main__":
    main()