第二十一章、 扩展Python

/* D:\Python27\Lib\Extest-1.0\Extest2.c */

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include "Python.h"

int fac(int n)

{

    if (n < 2) return(1);

    return (n)*fac(n-1);

}

static PyObject *

Extest_fac(PyObject *self, PyObject *args)

{

    int num;

    if (!PyArg_ParseTuple(args, "i", &num))

        return NULL;

    return (PyObject*)Py_BuildValue("i", fac(num));

}

static PyMethodDef

ExtestMethods[] =

{

    { "fac", Extest_fac, METH_VARARGS },

    { NULL, NULL },

};

void initExtest()

{

    Py_InitModule("Extest", ExtestMethods);

} 

#!/usr/bin/env python

# D:\Python27\Lib\Extest-1.0\setup.py

from distutils.core import setup, Extension

MOD = 'Extest'

setup(name=MOD, ext_modules=[

Extension(MOD, sources=['Extest2.c'])])

将Extest2.c和setup.py放入 Extest-1.0目录下
安装MinGW编译环境(mingw-get-inst-20110530.exe)
下载http://sourceforge.net/projects/mingw/

D:\Python27\Lib\Extest-1.0>python setup.py install build --compiler=mingw32

测试一下

>>> import Extest

>>> Extest.fac(10)

3628800

>>>