I am new to numpy extension writing, and am trying to call some of the functions defined in Numeric-21.3/Src/multiarraymodule.c, eg extern PyObject *PyArray_Correlate(PyObject *op1, PyObject *op2, int mode) in a Numeric extension module that I am writing. Are these functions available via the C API, and if so, how should I go about accessing them? Or are the only array functions defined in Include/arrayobject.h available in the C API? Below is my prototype module. I am defining a function 'xcorr' that just does what cross_correlate does, as a test case to see if I can access the multiarray C API: /* jdhscipy.c -- Wed Oct 2 2002 */ #include "Python.h" #include "Numeric/arrayobject.h" #include "stdio.h" static PyObject *ErrorObject; extern PyObject *PyArray_Correlate(PyObject*, PyObject*, int); static char xcorr__doc__[] = ""; static PyObject * xcorr(PyObject *self, PyObject *args) { PyObject *shape, *a0; int mode=0; if (!PyArg_ParseTuple(args, "OO|i", &a0, &shape, &mode)) return NULL; return PyArray_Correlate(a0, shape, mode); } static struct PyMethodDef jdhscipy_methods[] = { {"xcorr", xcorr, 1, xcorr__doc__}, {NULL, NULL} /* sentinel */ }; /* Initialization function for the module (*must* be called initjdhscipy) */ static char jdhscipy_module_documentation[] = "My first scipy extension" ; DL_EXPORT(void) initjdhscipy(void) { PyObject *m, *d; /* Create the module and add the functions */ m = Py_InitModule4("jdhscipy", jdhscipy_methods, jdhscipy_module_documentation, (PyObject*)NULL,PYTHON_API_VERSION); /* Import the array object */ import_array(); /* Add some symbolic constants to the module */ d = PyModule_GetDict(m); ErrorObject = PyString_FromString("jdhscipy.error"); PyDict_SetItemString(d, "error", ErrorObject); /* XXXX Add constants here */ /* Check for errors */ if (PyErr_Occurred()) Py_FatalError("can't initialize module jdhscipy"); }