Hi, I'm having a little Problem that might be trivial. I'm trying to use a nupmy array within a c++ method and having some trouble. The PyArray is not parsed correctly and PyArg_ParseTuple returns 0. Appreciate any help. #include "Python.h" #include void fromMatrix(PyObject *args){ _import_array(); PyArrayObject* A; PyArrayObject* B; if (!PyArg_ParseTuple(args, "O!O!", &PyArray_Type,&A, &PyArray_Type,&B)) return; int m = PyArray_DIM(A,0); int n = PyArray_DIM(A,1); .... and so on.