calc.c
#include <stdio.h> #include <Python.h> int add(int x, int y){ // C 函数 return x + y; } static PyObject *calc_add(PyObject *self, PyObject *args){ int x, y; // Python传入参数 // "ii" 表示传入参数为2个int型参数,将其解析到x, y变量中 if(!PyArg_ParseTuple(args, "ii", &x, &y)) return NULL; return PyLong_FromLong(add(x, y)); } // 模块的方法列表 static PyMethodDef CalcMethods[] = { {"add", calc_add, METH_VARARGS, "函数描述"}, {NULL, NULL, 0, NULL} }; // 模块 static struct PyModuleDef calcmodule = { PyModuleDef_HEAD_INIT, "calc", // 模块名 NULL, // 模块文档 -1, /* size of per-interpreter state of the module, or -1 if the module keeps state in global variables. */ CalcMethods }; // 初始化 PyMODINIT_FUNC PyInit_calc(void) { return PyModule_Create(&calcmodule); }
setup.py from distutils.core import setup, Extension module1 = Extension('calc', sources=['calc.c']) setup(name='calc_model', version='1.0', description='Hello ?', ext_modules=[module1] )
PS C:\Users\Desktop\my_file\pythonC> C:\python39\python.exe .\setup.py build running build running build_ext
用C写的python库现在已经安装成功,进入build下lib的文件夹里会看到一个.pyd的文件
进入到.pyd文件所在目录,就可以成功导入我们用C写的python了.
PS C:\Users\Desktop\my_file\pythonC\build\lib.win-amd64-3.9> C:\python39\python.exe Python 3.9.0 (tags/v3.9.0:9cf6752, Oct 5 2020, 15:34:40) [MSC v.1927 64 bit (AMD64)] on win32 Type "help", "copyright", "credits" or "license" for more information. >>> import calc >>> calc.add(7,9) 16
如果你想在任何目录下都可以导入,就把这个.pyd copy到C:\python39\Lib\site-packages下即可.
参考: http://www.manongjc.com/detail/51-trghapdrxbmnqvh.html
标签:NULL,python,扩展,C语言,int,add,build,calc From: https://www.cnblogs.com/pfeiliu/p/16888944.html