python文件支持中文

# -*- coding: utf-8 -*-

執(zhí)行shell命令

from subprocess import popen, pipe

def run_cmd(cmd):

#popen call wrapper.return (code, stdout, stderr)

child = popen(cmd, stdin = pipe, stdout = pipe, stderr = pipe, shell = true)

out, err = child.communicate()

ret = child.wait()

return (ret, out, err)

獲取當(dāng)前python腳本文件所在路徑

import os

os.path.split(os.path.realpath(__file__))[0]

json模塊 import的問(wèn)題

try :

import json

except :

import simplejson as json

使用json工具格式化json

#python 2.7以下

echo ＼'{＼hello＼:1}＼' | python -m simplejson.tool

#python 2.7及以上

echo ＼'{＼hello＼:1}＼' | python -m json.tool

一般調(diào)用步驟

py_initialize(); //初始化python環(huán)境

pyimport_importmodule(test); // 載入python模塊

pyobject_getattrstring(g_pmodule,test1); //獲得相應(yīng)python函數(shù)的pyobject

pyobject_callfunction(test1,i,s,2,e); //調(diào)用python相應(yīng)的函數(shù)

py_finalize(); //結(jié)束

c語(yǔ)言的示例代碼

#include <python2.7/python.h>

int main(){

pyobject * g_pmodule = null;

py_initialize(); //使用python之前，要調(diào)用py_initialize();這個(gè)函數(shù)進(jìn)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);//這里是要調(diào)用的文件名,我們這里是當(dāng)前目錄下test.py

if (!g_pmodule) {

printf(cant open python file!＼n);

return -2;

}

pyobject * test1 = pyobject_getattrstring(g_pmodule,test1);//這里是要調(diào)用的函數(shù)名

pyobject *objresult = pyobject_callfunction(test1,i,s,2,e);//調(diào)用函數(shù)

if (!objresult){

printf(invoke function fail＼n);

}

pyobject * test2= pyobject_getattrstring(g_pmodule,test2);//這里是要調(diào)用的函數(shù)名

objresult = pyobject_callfunction(test2,i,2);//調(diào)用函數(shù)

char * x = pystring_asstring(objresult);

printf(%s＼n,x);

py_finalize();//調(diào)用py_finalize，這個(gè)跟py_initialize相對(duì)應(yīng)的。

}

python程序mytest.py

def test1(s,str):

print s+str

return 0

def test2(s):

return s

c程序的編譯方法

#假設(shè)我們的python編譯的時(shí)候安裝在/opt/python里，那么我們可以用這樣的命令來(lái)編譯程序

$gcc -i/opt/python/include -l/opt/python/lib/ -lpython2.7 test.c

注意: 這里要求python編譯的時(shí)候，需要有動(dòng)態(tài)鏈接庫(kù)即加上--enable-shared

./configure --prefix=/opt/python --enable-shared

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