The MSRP protocol stack implementation for clients written in python.

Message Session Relay Protocol (MSRP) is a protocol for transmitting a
series of related instant messages in the context of a session. Message
sessions are treated like any other media stream when set up via a
rendezvous or session creation protocol such as the Session Initiation
Protocol (SIP).

WWW:	http://sipsimpleclient.com/wiki/SipMSRPApi