c语言如何调用python[抓取网页天气]

c语言调用python网上有很多范例，但是我在运行过程中发现找不到.py文件，后来试探着将.py文件中的class类去掉，只留下import module和def func语句，居然就能找到了！不行可以试下哈~~~

 

 

编译使用如下命令

 

gcc call_py.c -o getweather -I/usr/include/python2.5 -L/usr/lib/python2.5 -lpython2.5

.c文件代码如下

#include <stdio.h>
#include "/usr/include/python2.5/Python.h"

char *url = "";

int main()
{
    PyObject *pName, *pModule, *pDict, *pFunc, *pArgs, *pRetVal;

    Py_Initialize();
    if(!Py_IsInitialized())
    {
        printf("Initialize failed!\n");
        return -1;
    }
    PyRun_SimpleString("print 'Initialize successed!'");
    
    PyRun_SimpleString("import sys");
    PyRun_SimpleString("sys.path.append('./')");
    
    pName = PyString_FromString("getweather");
    pModule = PyImport_Import(pName);
    if(!pModule)
    {
        printf("Can't find getweather.py!\n");
        return -1;
    }
    PyRun_SimpleString("print 'Import web_1.py successed!'");
    
    pDict = PyModule_GetDict(pModule);
    if(!pDict )
    {
        return -1;
    }
    
    pFunc = PyDict_GetItemString(pDict, "getWeather");
    if(!pFunc || !PyCallable_Check(pFunc) )
    {
        printf("can't find function [getWeather]");
        return -1;
    }
    
    pArgs = PyTuple_New(1);
    PyTuple_SetItem(pArgs, 0, Py_BuildValue("s", url));
    pRetVal = PyObject_CallObject(pFunc, pArgs);
    printf("function return value : %s\n", PyString_AsString(pRetVal));
    
    Py_DECREF(pRetVal);
    Py_DECREF(pArgs);
    Py_DECREF(pFunc);
    Py_DECREF(pDict);
    Py_DECREF(pModule);
    Py_DECREF(pName);
    
    Py_Finalize();
    
    return 0;
}


.py文件代码如下

")
    weather = patternweather.findall(html)
    
    patterntemperature = re.compile("")
    temperature = patterntemperature.findall(html)

    return weather[0]

def getWeather(url):
    retval = htmlParser(getHtml(url))
    return retval

#!/usr/bin/env python # -*- coding:utf8 -*- import urllib2 import re      def getHtml(url):     req = urllib2.Request(url)     res = urllib2.urlopen(req)     html = res.read().decode("gb2312").encode("utf8")     res.close()          return html      def htmlParser(html):     patterndate = re.compile(">(\d{4}-\d{2}-\d{2} .+)<")     date = patterndate.findall(html)          patternweather = re.compile(" (.+)

([-]?\d{1,2}.+)