There is also a project called Autobahn but it is not integrated with
twisted.web (so one cannot serve
standard HTTP and websockets from the same service out of the box) and was
No, you can use Autobahn with Twisted Web https://github.com/tavendo/AutobahnPython/tree/master/examples/ => websocket/echo_site and with WSGI (i.e. Flask) https://github.com/tavendo/AutobahnPython/tree/master/examples/ => websocket/echo_wsgi Both does work with TLS and also supports not only Hybi-10+, RFC6455, but also Hixie-76 variants of WebSocket.
designed first to be a test suite for the development of the protocol.
No, the testsuite is a side project for Autobahn. Autobahn was designed to provide first-class WebSocket client and server support for Twisted. The testsuite has evolved into a "quasi industry standard": most projects use it to test for protocol compliance. Autobahn also provides RPC and PubSub on top of WebSocket: http://wamp.ws/. This is an officially registered WebSocket subprotocol and has implementations outside Twisted .. including 3rd party ones. Cheers, Tobias