1.C++库代码

#include <Python.h>

int Add(int x, int y)
{
        return x + y;
}

int Del(int x, int y)
{
        return x - y;
}

PyObject *WrappAdd(PyObject *self, PyObject *args)
{
        int x, y;

        if(!PyArg_ParseTuple(args, "ii", &x, &y))
        {
                return NULL;
        }

        return Py_BuildValue("i", Add(x, y));
}

PyObject *WrappDel(PyObject *self, PyObject *args)
{
        int x, y;

        if(!PyArg_ParseTuple(args, "ii", &x, &y))
        {
                return NULL;
        }

        return Py_BuildValue("i", Del(x, y));
}

static PyMethodDef test_methods[] = {
        {"Add", WrappAdd, METH_VARARGS, "something"},
        {"Del", WrappDel, METH_VARARGS, "something"},
        {NULL,NULL}
};

extern "C"
void inittest1()
{
        Py_InitModule("test1", test_methods);
}

2.编译C++库

$ g++ -fPIC -shared -o test1.so test.cpp -I$HOME/local/include/python2.7

3.python代码

import sys
import binascii
sys.path.append(".")
import test1

print test1.Add(1, 1)

4.运行程序

$ python example.py

5.运行结果

2