linux c内嵌执行python

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下载python，安装

编写代码test1.c

#include <Python.h>int main(int argc, char* argv[]) {    Py_Initialize();    PyRun_SimpleString("print 'aaaaaaaaaaa'");    Py_Finalize();    return 0;}

编译：

gcc -g test1.c /root/python/lib/libpython2.7.a -I/root/python/include/python2.7 -L/root/python/lib/python2.7/lib-dynload -lm -ldl -pthread -lutil -o test1

执行：./test1

输出：

aaaaaaaaaaa

很多情况下，linux已经默认安装了python，编译命令为：

gcc -g test1.c -I/usr/include/python2.6 -lpython2.6 -lm -ldl -pthread -lutil -o test11

上面时直接在c中硬编码python代码执行，那么怎么执行Python脚本呢：

test2.c

#include <Python.h>intmain(int argc, char *argv[]){    PyObject *pName, *pModule, *pDict, *pFunc;    PyObject *pArgs, *pValue;    int i;    if (argc < 3) {        fprintf(stderr,"Usage: call pythonfile funcname [args]\n");        return 1;    }    Py_Initialize();    pName = PyString_FromString(argv[1]);    /* Error checking of pName left out */    pModule = PyImport_Import(pName);    Py_DECREF(pName);    if (pModule != NULL) {        pFunc = PyObject_GetAttrString(pModule, argv[2]);        /* pFunc is a new reference */        if (pFunc && PyCallable_Check(pFunc)) {            pArgs = PyTuple_New(argc - 3);            for (i = 0; i < argc - 3; ++i) {                pValue = PyInt_FromLong(atoi(argv[i + 3]));                if (!pValue) {                    Py_DECREF(pArgs);                    Py_DECREF(pModule);                    fprintf(stderr, "Cannot convert argument\n");                    return 1;                }                /* pValue reference stolen here: */                PyTuple_SetItem(pArgs, i, pValue);            }            pValue = PyObject_CallObject(pFunc, pArgs);            Py_DECREF(pArgs);            if (pValue != NULL) {                printf("Result of call: %ld\n", PyInt_AsLong(pValue));                Py_DECREF(pValue);            }    else {                Py_DECREF(pFunc);                Py_DECREF(pModule);                PyErr_Print();                fprintf(stderr,"Call failed\n");                return 1;            }        }        else {            if (PyErr_Occurred())                PyErr_Print();            fprintf(stderr, "Cannot find function \"%s\"\n", argv[2]);        }        Py_XDECREF(pFunc);        Py_DECREF(pModule);    }    else {        PyErr_Print();        fprintf(stderr, "Failed to load \"%s\"\n", argv[1]);        return 1;    }    Py_Finalize();    return 0;}

multiply.py

#!/usr/bin/python#Filename: multiply.pydef multiply(a,b):    print "Will compute"    c=0   # for i in range(0,a)   #     c=c+b    return cmultiply(3,2)

编译：

gcc -g test2.c -I/usr/include/python2.6 -lpython2.6 -lm -ldl -pthread -lutil -o test2

把multiply.py脚本放到系统目录下/usr/lib/python2.6

执行：./test2 multiply multiply