Nice! I wrote a .NET wrapper myself, never got around to a Python extension though. One question - did you experience any memory leak issues with the CLD? Said, .NET wrapper DLL seems to leak and I never really checked if it was the C++/CLI I added on top or the actual CLD native C++ code. I doubt the latter since (according to my basic understanding) nothing is created in the original code which needs to be cleaned up manually. Before I start debugging mixed-mode .NET applications I just wanted to be sure.