编写python扩展

代码：

#include <Python.h>

static PyObject *

spam_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 PyMethodDef SpamMethods[] = {

{"system",  spam_system, METH_VARARGS,

"Execute a shell command."},

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

};

static struct PyModuleDef spammodule = {

    PyModuleDef_HEAD_INIT,

    "spam",   /* 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. */

    SpamMethods

};

PyMODINIT_FUNC

PyInit_spam(void)

{

    return PyModule_Create(&spammodule);

}

编译选项：

releaee版

dll名字必须为spam.pyd

测试：

>>> import spam
>>> dir(spam)
['__doc__', '__file__', '__loader__', '__name__', '__package__', '__spec__', 'system']
>>> spam.system('dir')
驱动器 G 中的卷是 ll6_za
卷的序列号是 C0F5-30DE

G:\temp\ConsoleApplication1\Release 的目录

2018/03/19 00:38 <DIR> .
2018/03/19 00:38 <DIR> ..
2018/03/19 00:36 746 ConsoleApplication1.exp
2018/03/19 00:36 27,307 ConsoleApplication1.iobj
2018/03/19 00:36 33,648 ConsoleApplication1.ipdb
2018/03/19 00:36 1,942 ConsoleApplication1.lib
2018/03/19 00:36 512,000 ConsoleApplication1.pdb

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编写python扩展

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