Python XMPP server library

I know there are several libraries to connect to XMPP serve开发者_如何学编程rs, but is there an XMPP server library somewhere written in Python?

A quick google search reveals:

• http://code.google.com/p/pretzel/

  An XMPP server written on the Twisted Python framework

• http://code.google.com/p/pjabberd/

  Jabber/XMPP Server in Python

Both seem a bit unmaintained, but you might be able to get them up and running.

It seems like that there is a new project on github:

python-xmpp-server

An XMPP Server written in Python. 

Personally I'm modifying it to provide an XMPP interface to the service I'm building, and I found it fairly easy to achieve this by modifying the "chat-server" example. You can write your own handlers for presence notification, roster requests, and other events.