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From: Ian Kelly <ian.g.kelly@gmail.com>
Date: Sun, 9 Aug 2015 11:52:13 -0600
Subject: Re: Pipes
To: Python <python-list@python.org>
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On Sun, Aug 9, 2015 at 11:39 AM,  <rogerh906@gmail.com> wrote:
> Where can I find out about this? It's not mentioned in my "Introduction to Python" book.

The Python documentation at docs.python.org are an important resource,
and in particular the subprocess module is covered at
https://docs.python.org/3/library/subprocess.html.