可python脚本坚持更改Windows环境变量？ （高雅） [英] Can a python script persistently change a Windows environment variable? (elegantly)

问题描述

从我的<一继href=\"http://stackoverflow.com/questions/488294/how-can-i-make-a-windows-batch-file-which-changes-an-environment-variable\">$p$pvious问题，是有可能使一个Python脚本坚持更改了Windows环境变量？

Following on from my previous question, is it possible to make a Python script which persistently changes a Windows environment variable?

更改os.environ一旦蟒蛇间preTER终止不会持续存在。如果我是在UNIX脚本这一点，我可能会做这样的事情：

Changes to os.environ do not persist once the python interpreter terminates. If I were scripting this on UNIX, I might do something like:

set foo=`myscript.py`

但是，唉，CMD.EXE没有任何就像SH的后台剔行为。我看到一个非常冗长的解决方案...这AINT pretty所以我们肯定可以改善这一点：

But alas, cmd.exe does not have anything that works like sh's back-tick behavior. I have seen a very long-winded solution... it 'aint pretty so surely we can improve on this:

for /f "tokens=1* delims=" %%a in ('python  ..\myscript.py') do set path=%path%;%%a

当然，在微软心目中有比这更好的解决办法！

Surely the minds at Microsoft have a better solution than this!

注意：精确复制的<一个href=\"http://stackoverflow.com/questions/488366/how-do-i-make-environment-variable-changes-stick-in-python\">this问题。

推荐答案

您啰嗦的解决方案可能是最好的办法;我不相信这是可能在Python直接。本文提出的另一种方法，使用临时批处理文件：

Your long-winded solution is probably the best idea; I don't believe this is possible from Python directly. This article suggests another way, using a temporary batch file:

的http：//$c$c.activestate.com/recipes/159462/

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