from __future__ import generators from twisted.flow import flow def render(req): req.write("Delayed") req.write("

Delayed WebPage

") yield flow.Cooperate(5) req.write("

Delayed Content

") 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()