{"title": "C\u7a0b\u5e8f\u8c03\u7528Python\u811a\u672c", "update_time": "2014-03-26 20:38:32", "tags": "c python", "pid": "292", "icon": "python.png"}
## 一般调用步骤 * Py_Initialize(); //初始化Python环境 * PyImport_ImportModule("test"); // 载入python模块 * PyObject_GetAttrString(g_pModule,"test1"); //获得相应Python函数的PyObject * PyObject_CallFunction(test1,"i,s",2,e); //调用Python相应的函数 * Py_Finalize(); //结束 ## C语言的示例代码 ``` #include
int main(){ PyObject * g_pModule = NULL; Py_Initialize(); //使用python之前,要调用Py_Initialize();这个函数进行初始化 if (!Py_IsInitialized()) { printf("init error\n"); return -1; } PyRun_SimpleString("import sys"); PyRun_SimpleString("sys.path.append('./')"); g_pModule =PyImport_ImportModule("mytest");//这里是要调用的文件名,我们这里是当前目录下test.py if (!g_pModule) { printf("Cant open python file!\n"); return -2; } PyObject * test1 = PyObject_GetAttrString(g_pModule,"test1");//这里是要调用的函数名 PyObject *objResult = PyObject_CallFunction(test1,"i,s",2,e);//调用函数 if (!objResult){ printf("invoke function fail\n"); } PyObject * test2= PyObject_GetAttrString(g_pModule,"test2");//这里是要调用的函数名 objResult = PyObject_CallFunction(test2,"i",2);//调用函数 char * x = PyString_AsString(objResult); printf("%s\n",x); Py_Finalize();//调用Py_Finalize,这个跟Py_Initialize相对应的。 } ``` ## Python程序mytest.py ``` def test1(s,str): print s+str return 0 def test2(s): return s ``` ## C程序的编译方法 ``` #假设我们的python编译的时候安装在/opt/python里,那么我们可以用这样的命令来编译程序 $gcc -I/opt/python/include -L/opt/python/lib/ -lpython2.7 test.c ``` 注意: 这里要求python编译的时候,需要有动态链接库即加上--enable-shared ``` ./configure --prefix=/opt/python --enable-shared ```