#include "Python.h"
#include "stdio.h"

int main() {
    // Start Python.
    Py_Initialize();

    // Get the builtins module.
    PyObject* builtins = PyImport_ImportModule("__builtin__");
    if (builtins == NULL) {
        fprintf(stderr, "Could not load the built-ins module.\n");
        return -1;
    }                        

    // Invoke execfile with one argument.
    fprintf(stdout, "Call execfile with one argument...\n");
    PyObject* result = PyObject_CallMethod(builtins, "execfile", "s", "foo.py"); 
    fprintf(stdout, "Call has finished.\n");

    // clean-up
    Py_XDECREF(builtins);
    if (result != NULL) {
        fprintf(stdout, "The call to execfile with one argument succeeded.\n");
        Py_DECREF(result);
    }

    // Stop Python.
    Py_Finalize();
    return 0;
}