Path: csiph.com!fu-berlin.de!uni-berlin.de!not-for-mail From: Chris Angelico Newsgroups: comp.lang.python Subject: Re: Ignore error with non-zero exit status (was: How to ignore error with anon-zero exit status) Date: Mon, 21 Dec 2015 08:56:34 +1100 Lines: 25 Message-ID: References: <3883651.fOIMIIEhYO@PointedEars.de> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Trace: news.uni-berlin.de w01FEwQLRKSv4HWlNR8iFgfteQY3NkZl3szuerwpjDfw== Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.002 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'operator': 0.03; 'received:209.85.223': 0.03; '21,': 0.07; 'formatting': 0.07; 'cc:addr:python-list': 0.09; 'subject:How': 0.09; 'subject:ignore': 0.09; 'python': 0.10; 'subject:error': 0.11; 'subject: \n ': 0.15; 'cmd,': 0.16; 'err,': 0.16; 'formatting.': 0.16; 'from:addr:rosuav': 0.16; 'from:name:chris angelico': 0.16; 'received:io': 0.16; 'received:psf.io': 0.16; 'subject:non': 0.16; '{0};': 0.16; 'wrote:': 0.16; 'string': 0.17; '2015': 0.20; 'cc:2**0': 0.20; 'cc:addr:python.org': 0.20; 'minor': 0.22; 'am,': 0.23; 'dec': 0.23; 'header:In-Reply-To:1': 0.24; 'feature': 0.24; 'mon,': 0.24; 'message-id:@mail.gmail.com': 0.27; '2.6': 0.27; "skip:' 10": 0.28; 'skip:( 20': 0.28; 'away.': 0.29; 'another': 0.32; 'run': 0.33; 'url:python': 0.33; 'received:google.com': 0.35; "isn't": 0.35; 'should': 0.36; 'instead': 0.36; 'url:org': 0.36; 'received:209.85': 0.36; 'url:library': 0.36; 'subject:: ': 0.37; 'received:209': 0.38; 'format': 0.39; 'subject:-': 0.39; 'subject:with': 0.40; 'hang': 0.60; 'thomas': 0.63; 'oldest': 0.66; 'percent': 0.66; 'url:6': 0.66; '(why': 0.84; 'abandon': 0.84; 'chrisa': 0.84; 'subject:status': 0.84; 'to:none': 0.91; 'favour': 0.93; 'hand,': 0.97 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:cc :content-type:content-transfer-encoding; bh=H4ubtPn9vflP/jUi/7Tq9MYs2U4/4L4WwT9y5URUg4U=; b=C5Nl+7GogK8tjrCUpzH8yZpuNXGCQflnAwsjM9M8OtxIzFiQ+0ZfP4P/2dSCJtGnxh fsgBgqYnhgzxlhDFjMPMo8zsrgsZvwIsmiFqZBjL24vuPGuHC72usBXVvLk+datrvQkA Sn6R6KkY0Td1jP6mDDOFqB6+I2iHBwdFiE5dUhgTtD3v3OHrfGSO1jkFnTqQC38QJdbd RxadbyfxXSEAqzRhL4IeOktpwlRL2mymzDJUpcbf+JV0J1N9QoL0cKnhHmMQYbq88Yxo 8IyVqjw4ItnQL9eeRykEhqveAn12AsE84pWqNe5niC75H8d1PWi9YvKqvQ1fvzDx56ln mdnQ== X-Received: by 10.107.163.146 with SMTP id m140mr14902634ioe.19.1450648594884; Sun, 20 Dec 2015 13:56:34 -0800 (PST) In-Reply-To: <3883651.fOIMIIEhYO@PointedEars.de> X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.20+ Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Xref: csiph.com comp.lang.python:100636 On Mon, Dec 21, 2015 at 8:22 AM, Thomas 'PointedEars' Lahn wrote: > Python 2.6 (why are you using the oldest Python minor version?) introduce= d > string.format(), so you should use that instead of the old string format > operator (=E2=80=9C%=E2=80=9D): > > logging.error("Can't run {0}; got {1} ({2:d})!".format(cmd, err, ret)) > > Percent formatting isn't going away. There's no need to tell people to abandon it in favour of .format(), unless they actually need a feature of .format(). > On the other hand, you do not need the format operator to begin with: > > logging.error("Can't run %s; got %s (%d)!", cmd, err, ret) > > > See? Another good reason to hang onto percent formatting. ChrisA