pymsrpc is an attempt to develop a working library for communicating with remote Microsoft RPC endpoints. It includes an IDL parser and NDR data types for making requests.
I wanted to get this up here in case you haven’t heard that Cody Pierce and Aaron Portnoy have released PyMSRPC. I personally have been very excited for this to be released and I will post more information later once I get a chance to play with it. Cody also wrote a great article about NDR Types over on the DVLabs blog.