Path: csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!aioe.org!feeder.news-service.com!feeds.phibee-telecom.net!dedekind.zen.co.uk!zen.net.uk!hamilton.zen.co.uk!reader02.news.zen.co.uk.POSTED!not-for-mail
From: Nobody <nobody@nowhere.com>
Subject: Re: os.popen command working differently on Windows
Date: Fri, 13 May 2011 09:48:52 +0100
User-Agent: Pan/0.14.2 (This is not a psychotic episode. It's a cleansing moment of clarity.)
Message-Id: <pan.2011.05.13.08.48.23.250000@nowhere.com>
Newsgroups: comp.lang.python
References: <21581D39FA3BDF40904D75AF9653CE26064FC6D1@blrex.prog.altair.com> <mailman.1469.1305210153.9059.python-list@python.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Lines: 12
Organization: Zen Internet
NNTP-Posting-Host: 9b973805.news.zen.co.uk
X-Trace: DXC=l;bBchdJI[@L2Ih^^87?RGYjZGX^207PK`<MJMoM3PFMQaY7232OWQJFJHPa[N739@KgCn=QFZ8O@GUK\SEnB<7A
X-Complaints-To: abuse@zen.co.uk
Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:5286

On Thu, 12 May 2011 15:21:41 +0100, Tim Golden wrote:

> os.popen returns a file-like object from which you can read any error
> messages generated.

The documentation doesn't say, but if it's anything like the Unix popen()
function, with mode='r' the returned file-like object will correspond to
the child's stdout, but error messages will normally be written to stderr.

In any case, os.popen() and similar are deprecated in favour of
subprocess.Popen().