tornado event/driven demo

gistfile1.txt

import tornado.ioloop
import tornado.web

class MainHandler(tornado.web.RequestHandler):
    def get(self):
        def test1():
            print 'test1'
        def test2():
            print 'test2'
        tornado.ioloop.IOLoop.instance().add_listener('test', test1)
        tornado.ioloop.IOLoop.instance().add_listener('test', test2)
        tornado.ioloop.IOLoop.instance().emit('test')
        self.write("Hello, world")

application = tornado.web.Application([
    (r"/", MainHandler),
])

if __name__ == "__main__":
    application.listen(8001)
    tornado.ioloop.IOLoop.instance().start()