如何在Python脚本中将PATH =％PATH％设置为环境? [英] how to set PATH=%PATH% as environment in Python script?

问题描述

我正在尝试从python程序启动exe文件(该exe文件是用Visual Studio编译的c ++项目的输出).在此c ++项目的属性(配置-> properties->调试->环境)中，

I'am trying to start an exe file (the exe file is the output of c++ project compiled with visual studio) from a python program. In the properties of this c++ project (configuration ->properties-> debugging-> environment) the following setting in the

     (PATH = %PATH%;lib\testfolder1;lib\testfolder2) 

给出

.
有什么方法可以将路径环境变量设置为

is given.
is there any way to set path environment variable to

1. PATH =％PATH％
2. lib \ testfolder1
3. lib \ testfolder2

在python程序中?

in a python program?

预先感谢您的重播

推荐答案

您可以使用以下几种方法来更新PATH:

You can update PATH using several methods:

import sys
sys.path += ["c:\\new\\path"]
print sys.path

或

import os
os.environ["PATH"] += os.pathsep + os.pathsep.join(["c:\\new\\path"])
print os.environ["PATH"]

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