下面是一個例子：

首先是python的一個簡單函式

class Hello:

def __init__(self, x):

self.a = x

def print(self, x=None):

print(x)

def xprint():

print("hello world")

if __name__ == "__main__":

xprint()

h = Hello(5)

h.print()1

下面是C語言

#include <python3.4m/Python.h>

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

int main()

{

Py_Initialize();

// 將當前目錄加入sys.path

PyRun_SimpleString("import sys");

PyRun_SimpleString("sys.path.append("./")");

// 匯入hello.py模組

PyObject *pmodule = PyImport_ImportModule("hello");

// 獲得函式xprint物件，並呼叫，輸出“hello world\n”

PyObject *pfunc = PyObject_GetAttrString(pmodule, "xprint");

PyObject_CallFunction(pfunc, NULL);

// 獲得類Hello並生成例項pinstance，並呼叫print成員函式，輸出“5 6\n”

PyObject *pclass = PyObject_GetAttrString(pmodule, "Hello");

PyObject *arg = Py_BuildValue("(i)", 5);

PyObject *pinstance = PyObject_Call(pclass, arg, NULL);

PyObject_CallMethod(pinstance, "print", "i", 6);

Py_Finalize();

return 0;

}

編譯命令如下：

gcc pyapi.c -lpython3.4m -o pyapi