Re: redirecting stdout and stderr to /dev/null

From	Chris Angelico <rosuav@gmail.com>
Newsgroups	comp.lang.python
Subject	Re: redirecting stdout and stderr to /dev/null
Date	2016-05-08 10:10 +1000
Message-ID	<mailman.484.1462666215.32212.python-list@python.org> (permalink)
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On Sun, May 8, 2016 at 9:54 AM, Jim Dodgen <jim@dodgen.us> wrote:
> The empty token is needed but useless, it is arg[0] most people just repeat
> the program name

Far from useless. It's how a process learns its own name, and yes,
repeating the image name is the most common way to provide that.

> One other observation it looks as Popen behaves the same way as my fork
> exec would

Indeed. In fact, I would strongly recommend never using an explicit
fork/exec from Python - always use subprocess or equivalent. On
non-Unix platforms, fork/exec may not be available, but subprocess can
use other methods of invoking programs.

ChrisA

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Re: redirecting stdout and stderr to /dev/null Chris Angelico <rosuav@gmail.com> - 2016-05-08 10:10 +1000

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