Coherence is a framework written in Python enabling your application to participate in digital living networks, at the moment primarily the UPnP universe. The main component is a DLNA Media Server, extensible via plugins.

Its objective and demand is to relieve your application from all the membership/the UPnP related tasks as much as possible.

The core of Coherence provides a (hopefully complete) implementation of a SSDP server, a MSEARCH client, server and client for HTTP/SOAP requests, and server and client for Event Subscription and Notification (GENA).