[Twisted-Python] Noob alert - Looking for a framework for creating a long polling service

Hi guys, I am a front-end developer, starting with django with some php in the belt. I am looking for a framework for doing a long polling service where : clients would connect to a soecific 'channel' and wait for a response Where a client admin would push a response only to clients connected to the same channel It's a bit like a chat where everyone listening and only one is talking with multiple channels I am a bit lost in the twisted doc, I know that twisted do a LOT of thing, and was wondering, if twisted is appropriate for this task, and do you have a book to recommend for people like me (by that I mean that I will not be using low level api's) Thank you!