#include <Python.h>

void PrintMyDef()
{
  PyObject* mydef = PyImport_ImportModule("scripts.my_def");

  if(mydef) {
    PyObject* printHello = PyObject_GetAttrString(mydef, "PrintMyDef");

    if(printHello) {
      PyObject *r = PyObject_CallFunction(printHello, NULL);

      if (r == Py_None) {
        printf("None is returned.\n");
        Py_XDECREF(r);
      }

      Py_XDECREF(printHello);
    }
    Py_XDECREF(mydef);
  }
}

int Multiply(int x, int y)
{
  PyObject* mydef = PyImport_ImportModule("scripts.my_def");
  int result;

  if(mydef) {
    PyObject* multiply = PyObject_GetAttrString(mydef, "Multiply");
    
    if(multiply) {
      PyObject *r = PyObject_CallFunction(multiply, "ii", x, y);

      if(r) {
        result = (int)PyInt_AS_LONG(r);
        Py_XDECREF(r);        
      }
      Py_XDECREF(multiply);
    }
    Py_XDECREF(mydef);
  }

  return result;
}

void SysPath()
{
  printf("sys.path:");
  PyRun_SimpleString("import sys\nprint sys.path\nprint\n");
}

int main(int argc, char** argv)
{
  Py_SetProgramName(argv[0]);
  Py_Initialize();
  printf("GetProgramName: %s\n\n", Py_GetProgramName());

  if (Py_IsInitialized()) {    
    PySys_SetArg(argc, argv);
    printf("GetPath: %s\n\n", Py_GetPath());
    SysPath();
    PrintMyDef(); // Calling python functions
    printf("%d * %d = %d\n", 10, 15, Multiply(10, 15));
    Py_Finalize();
  }
  return 0;
}