skeleton Python C++ interface

hello.c

#include <Python.h>
#include <string.h>

#include "hello_world.h"

static PyObject *
hello_func(PyObject *self, PyObject *args)
{
    const char* str;

    if (!PyArg_ParseTuple(args, "s", &str))
            return NULL;

    hello_world(str);

    return Py_BuildValue("i", strlen(str));
}

static PyMethodDef helloMethods[] = {
    {"func", hello_func, METH_VARARGS, "Prints a string."},
    {NULL, NULL, 0, NULL} 
};

PyMODINIT_FUNC
inithello(void)
{
    PyObject *m;
    m = Py_InitModule("hello", helloMethods);
    
    if (m == NULL)
        return;
}

hello_world.cpp

#include <iostream>

using namespace std;

#ifdef __cplusplus
extern "C"
{
#endif

void hello_world(const char* c_string)
{
    cout << string(c_string) << endl;
}

#ifdef __cplusplus
}
#endif

hello_world.h

#ifndef __HELLO_WORLD
#define __HELLO_WORLD

void hello_world(const char* c_string);

#endif

Makefile

default:
	python setup.py build
	ln -fs build/lib.linux-x86_64-2.7/hello.so hello.so	
	python -c 'import hello; hello.func("it is workingses!")'

test_hello:
	g++ test_main.cpp \
		hello_world.cpp \
		-o test_main

clean:
	rm -rf hello.so build test_main

setup.py

#!/usr/bin/env python

from distutils.core import setup, Extension

module = Extension('hello',
                   sources = ['hello.c', 'hello_world.cpp'])


setup (name  = 'Hello',
       version = '1.0',
       description = 'This is a demo package.',
       ext_modules = [module])