from __future__ import generators from twisted.flow import flow def render(req): req.write("<html><head><title>Delayed</title></head>") req.write("<body><h1>Delayed WebPage</h1>") yield flow.Cooperate(5) req.write("<p>Delayed Content</p></body></html>") if __name__=='__main__': from twisted.internet import reactor from twisted.web.server import Site from twisted.flow.web import Resource print "visit http://localhost:8081/ to view" reactor.listenTCP(8081,Site(Resource(render))) reactor.run()