#include <Python.h>

// c function

static PyObject *

demo_system(PyObject *self, PyObject *args) {

    const char *command;

    int sts;

    if (!PyArg_ParseTuple(args, "s", &command))

        return NULL;

    sts = system(command);

    return PyLong_FromLong(sts);

}

static PyObject *

demo_hello(PyObject *self, PyObject *args) {

    PyObject *name, *result;

    if (!PyArg_ParseTuple(args, "U:demo_hello", &name))

        return NULL;

    result = PyUnicode_FromFormat("Hello, %S!", name);

    return result;

}

static PyObject *

demo_chinese(PyObject *self, PyObject *args) {

    char *name;

    int age;

    if (!PyArg_ParseTuple(args, "si", &name, &age))

        return NULL;

    // printf("%d\n", age);

    char total[];

    memset(total, , sizeof(total));

    strcat(total, "strcat() 函数用来连接字符串：");

    strcat(total, "tset");

    PyObject *result = Py_BuildValue("s", total);

    return result;

}

// method table

static PyMethodDef DemoMethods[] = {

    {"system", // python method name

     demo_system, // matched c function name

     METH_VARARGS, /* a flag telling the interpreter the calling

                                convention to be used for the C function. */

     "I guess here is description." },

     {"hello", demo_hello,  METH_VARARGS, "I guess here is description." },

     {"chinese", demo_chinese, METH_VARARGS, NULL },

     {NULL, NULL, , NULL}        /* Sentinel */

};

// The method table must be referenced in the module definition structure.

static struct PyModuleDef demomodule = {

    PyModuleDef_HEAD_INIT,

    "demo",   /* name of module */

    NULL, /* module documentation, may be NULL */

    -,       /* size of per-interpreter state of the module,

                or -1 if the module keeps state in global variables. */

    DemoMethods

};

// The initialization function must be named PyInit_name()

PyMODINIT_FUNC

PyInit_demo(void)

{

    return PyModule_Create(&demomodule);

}

import demo

print("---------------------------")

status = demo.system("ls -l")

print("---------------------------")

hi = demo.hello("Sink")

print(hi)

print("---------------------------")

hi = demo.chinese("Sink", 2014)

print(hi)

print("---------------------------")

from distutils.core import setup, Extension

module1 = Extension('demo',

                    sources = ['demo.c'])

setup (name = 'Demo hello',

       version = '1.0',

       description = 'This is a demo package by Sink',

       ext_modules = [module1])