Erhan Ekici <erhan at uzem.itu.edu.tr> writes: > What is problem ? and to use C or C++ in python, what should I do except Weave ? Weave is a cool tool. If it works for you, go for it! Lots of people have had success with Boost.Python for numerics: http://www.boost.org/libs/python Regards, -- Dave Abrahams Boost Consulting www.boost-consulting.com