Tornado sever that responds after a given delay

tornado_delay.py

import logging
import tornado.web
import tornado.ioloop
from tornado.options import options, define, parse_command_line


define('port', default=8888, type=int, metavar='PORT', help='port to listen on')
define('timeout', default=20.0, type=float, metavar='SECONDS', help='number of seconds to timeout calls after')

class MainHandler(tornado.web.RequestHandler):
    @tornado.web.asynchronous
    def get(self): 
        tornado.gen.sleep(options.timeout).add_done_callback(lambda *a, **k: self.finish())

    post = get
    

if __name__ == "__main__":
    parse_command_line()
    logging.info('listening on port %d', options.port)
    tornado.web.Application([(r".*", MainHandler)]).listen(options.port)
    tornado.ioloop.IOLoop.current().start()