Yes, I am aware of SWIG (and similar), but I am partial to (and biased towards) Boost.Python which I do use... My comment was that I am not confident it would be easy to assemble the toolset needed to compile extensions for the Python embeded within Poser 6. It is a nightmare as it is trying to play catchup whith the various incompatibilities between XCode 2.1, XCode 2.2 and the various Python distributions currently available for MacOS X (situation fast improving, though) to try to cater to that embeded version in addition, and stay (reasonably) sane. Well, as you point out, it's been done (I did purchase Poser Physics, but did not yet have the time to play with it :-( ), and there's a distutils for that Python so that's doable (if perhaps not pleasant). Tk is legacy, even for Python, but wxWindows (which wxPython wraps) is not top-notch standard C++ so... and the last time we did have a discution about doing a new C++ standard abiding GUI framework on Boost, I believe things faltered out... (R.L. is a b*tch!). We did get ourselves mired into the One-Only-Look vs Look-as-your-platform-does-but-do-not-code-to-it though... So there currently is no real happy middle ground. Anybody wants to contribute? Hubert Holin