That's the reason I am using SWIG http://www.swig.org
For C++ classes, you can get a working Python module autmatically. It also has advanced features, like "directors", enablig subclassing from Python (to be used in de C++ side). However, I should warn you SWIG is not as friendly as Pyrex. But I used it to wrap nontrivial libraries written in C and C++. -- http://mail.python.org/mailman/listinfo/python-list
