Path: csiph.com!usenet.pasdenom.info!dedibox.gegeweb.org!gegeweb.eu!nntpfeed.proxad.net!proxad.net!feeder1-2.proxad.net!usenet-fr.net!nerim.net!novso.com!newsfeed.xs4all.nl!newsfeed6.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.006 X-Spam-Evidence: '*H*': 0.99; '*S*': 0.00; 'received:209.85.223': 0.03; 'syntax': 0.03; 'subject:skip:s 10': 0.05; 'python': 0.09; 'etc.),': 0.09; 'subject:language': 0.09; 'sat,': 0.15; "'hello": 0.16; 'cryptic.': 0.16; 'gpg': 0.16; 'imo,': 0.16; 'subject:joining': 0.16; 'syntax,': 0.16; 'useless.': 0.16; 'worse.': 0.16; 'wrote:': 0.17; 'exists': 0.17; 'skip:{ 20': 0.17; 'meant': 0.21; "python's": 0.23; 'idea': 0.24; 'second': 0.24; 'paul': 0.24; 'header:In-Reply-To:1': 0.25; '---': 0.26; 'converting': 0.27; 'message-id:@mail.gmail.com': 0.27; 'subject:list': 0.28; 'consult': 0.29; "skip:' 10": 0.30; 'docs': 0.33; 'to:addr:python-list': 0.33; 'changed': 0.34; 'received:google.com': 0.34; 'nov': 0.35; 'said,': 0.35; 'community': 0.35; 'so,': 0.35; 'pm,': 0.35; 'received:209.85': 0.35; 'but': 0.36; 'received:209': 0.37; 'subject:: ': 0.38; 'to:addr:python.org': 0.39; 'subject:-': 0.40; 'header:Received:5': 0.40; 'your': 0.60; 'first': 0.61; 'more': 0.63; 'opt': 0.78; 'it\xe2\x80\x99s': 0.84; 'you\xe2\x80\x99re': 0.91; 'hate': 0.93; 'proposition': 0.93; 'url:tk': 0.93; 'old.': 0.95 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:to :content-type:content-transfer-encoding; bh=fJalT35jhXu4IUe3nM22tKHP94nI9KVkfF9Frb1C4yI=; b=kk2vUXYOWGiAfd4JZsndlLKGUb6sxP2JFqShW+VOH6BfHXctsk/4PSnJIpX7z0Tn88 JdNLpybTgjjIvSgTNVfbk5aUFBSzfzSGjbedoVCQcpDPJQ4Pt/T1usCL77kEeCNkT8Ak j4PD+H/PwSAAYop+viPlOA5MsofrECv0/eW9hJSJ0FTSBAUoRVk6ShxdJnB+cAVc1HpL n3NERQlj1P5c1HZgRCfYYdEAaGW/GUkW8qgm4gJBC9QdpGHFoaOTXH6yyhSoB90IR5UH xyIZyufgECCYy1eWmUKkDoO10ZjZ4SS31lqpVTNANiNPLH6pyvdI7U89gn1eB50PyP3M GSPg== MIME-Version: 1.0 In-Reply-To: <7xwqxt765m.fsf@ruckus.brouhaha.com> References: <92ada057-5a72-4186-bd22-4ccb600b8e45@googlegroups.com> <7xwqxt765m.fsf@ruckus.brouhaha.com> Date: Sat, 10 Nov 2012 18:13:47 +0100 Subject: Re: Format specification mini-language for list joining From: Kwpolska To: python-list@python.org Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Newsgroups: comp.lang.python Message-ID: Lines: 33 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1352567636 news.xs4all.nl 6987 [2001:888:2000:d::a6]:38208 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:33094 On Sat, Nov 10, 2012 at 5:51 PM, Paul Rubin wrote= : > [=E2=80=A6] Python's format strings are pretty much the same as C's forma= t strings [=E2=80=A6] You=E2=80=99re thinking about the old % syntax, 'Hello %s!' % 'world'. The= OP meant the new str.format syntax ('Hello {}!'.format('world')). --- IMO, the idea is useless. First of, format() exists since 2.6, which was released in 2008. So, it would be hard to use it anyways. Second of, which is more readable: out =3D 'Temperatures: {0:", ":.1f} Celsius'.format(temps) or out =3D 'Temperatures: {} Celsius'.format(', '.join(temps)) 101% of the Python community would opt for the second format. Because your format is cryptic. The current thing is already not-quite-easy-to-understand when you use magic (aligning, type converting etc.), but your proposition is much worse. And I hate to consult the docs while working on something. As I said, it=E2=80=99s hard = to even get this one changed because str.format is 4 years old. --=20 Kwpolska stop html mail | always bottom-post www.asciiribbon.org | www.netmeister.org/news/learn2quote.html GPG KEY: 5EAAEA16