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Date: Wed, 23 Sep 2015 20:00:41 +1000
From: Cameron Simpson <cs@zip.com.au>
To: python-list@python.org
Subject: Re: Modify environment variable for subprocess
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Xref: csiph.com comp.lang.python:97032

On 23Sep2015 02:51, loial <jldunn2000@gmail.com> wrote:
>I need to modify the LIBPATH environment variable when running a process via subprocess, but otherwise retain the existing environment.
>
>Whats the best way to do that?

Make a copy of os.environ, modify the copy, pass it via the env=parameter of 
subprocess.Popen. That is the most direct and controllable method.

Cheers,
Cameron Simpson <cs@zip.com.au>

Tachyon: A gluon that's not completely dry.