Python extension, where am I going wrong

[John Vines (CISD/HPCD)]

All,
   I am trying to create an extension module and keep getting an error, 
"/usr/local/lib/python2.5/site-packages/mytest.so: undefined symbol: 
PyInitModule"

thanks in advance,

*Here is my source code and setup.py information:

*/* mytest.c */
#include <Python.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/types.h>

static PyObject *ErrorObject;

static char isEven__doc__[] = "Method to determine if number is odd or 
even\n";

static PyObject *isEven(PyObject *self, PyObject *args){
   int inputValue;
   int returnValue;
  
   if (!PyArg_ParseTuple(args, "i", &inputValue)){
   PyErr_SetString(PyExc_ValueError, "Argument parsing Error");
   return NULL;
   }
  
   if ( 0 == inputValue%2 ){
   returnValue = 1;
   } else {
   returnValue = 0;
   }
   return Py_BuildValue("i", returnValue);
}

static char getFactorial__doc__[] = "This module takes a number as a 
parameter \
   and returns the factorial of that number\n";

static PyObject *getFactorial(PyObject *self, PyObject *args){
   int inputValue;
   int resultValue;
  
   if (!PyArg_ParseTuple(args, "i", &inputValue)){
   PyErr_SetString(PyExc_ValueError, "Argument parsing error");
   return NULL;
   }
  
   resultValue = factorialHelper(inputValue);
   return PyInt_FromLong(resultValue);
}

int factorialHelper(int factor){
   if (factor <= 0){
   return 0;
   }
   if (factor == 1){
   return 1;
   }
   return factor*factorialHelper(factor-1);
}

static struct PyMethodDef mytest_methods[] = {
   {"isEven", isEven, METH_VARARGS, "Determine odd/even of a number"},
   {"getFactorial", getFactorial, METH_VARARGS, "Calc the factorial 
value of a number"},
   {NULL, NULL, 0, NULL}
};

void initmytest(){
   PyObject *m, *d;
  
   m = PyInitModule("mytest", mytest_methods);
   d = PyModule_GetDict(m);
  
   ErrorObject = PyBuildValue("s", "mytest module error");
   PyDict_SetItemString(d, "Error", ErrorObject);
  
   if (PyErr_Occurred())
   Py_FatalError("Can't initialize module mytest!");
}

*My setup.py code:*
#!/usr/bin/env python
from distutils.core import setup, Extension

setup(name="mytest", version="1.0",
     ext_modules=[Extension("mytest", ["mytest.c"])])
--
http://mail.python.org/mailman/listinfo/python-list