Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!us.feeder.erje.net!feeder.erje.net!eu.feeder.erje.net!newsfeed.xs4all.nl!newsfeed1.news.xs4all.nl!xs4all!post.news.xs4all.nl!not-for-mail
Return-Path: <python-python-list@m.gmane.org>
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; 'clause': 0.09; 'false,': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'second.': 0.09; 'jan': 0.12; 'computes': 0.16; 'received:80.91.229.3': 0.16; 'received:plane.gmane.org': 0.16; 'reedy': 0.16; 'subject:bit': 0.16; 'sure.': 0.16; 'wrote:': 0.18; 'header:User-Agent:1': 0.23; 'header:X-Complaints-To:1': 0.27; 'header:In-Reply-To:1': 0.27; 'but': 0.35; 'there': 0.35; 'doing': 0.36; 'to:addr:python-list': 0.38; 'pm,': 0.38; 'to:addr:python.org': 0.39; 'received:org': 0.40; 'received:173': 0.61; 'further': 0.61; 'first': 0.61; 'email addr:gmail.com': 0.63; 'obvious': 0.74; 'received:fios.verizon.net': 0.84
X-Injected-Via-Gmane: http://gmane.org/
To: python-list@python.org
From: Terry Reedy <tjreedy@udel.edu>
Subject: Re: A curious bit of code...
Date: Thu, 13 Feb 2014 19:29:33 -0500
References: <4cc09129-43ee-4205-a24c-03f92b594abc@googlegroups.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
X-Gmane-NNTP-Posting-Host: pool-173-75-254-207.phlapa.fios.verizon.net
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.3.0
In-Reply-To: <4cc09129-43ee-4205-a24c-03f92b594abc@googlegroups.com>
X-BeenThere: python-list@python.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe: <https://mail.python.org/mailman/options/python-list>, <mailto:python-list-request@python.org?subject=unsubscribe>
List-Archive: <http://mail.python.org/pipermail/python-list/>
List-Post: <mailto:python-list@python.org>
List-Help: <mailto:python-list-request@python.org?subject=help>
List-Subscribe: <https://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Newsgroups: comp.lang.python
Message-ID: <mailman.6903.1392337808.18130.python-list@python.org>
Lines: 12
NNTP-Posting-Host: 2001:888:2000:d::a6
X-Trace: 1392337808 news.xs4all.nl 2958 [2001:888:2000:d::a6]:33965
X-Complaints-To: abuse@xs4all.nl
Xref: csiph.com comp.lang.python:66272

On 2/13/2014 1:37 PM, forman.simon@gmail.com wrote:
> I ran across this and I thought there must be a better way of doing it, but then after further consideration I wasn't so sure.
>
>    if key[:1] + key[-1:] == '<>': ...

if key[:1] == '<' and key[-1:] == '>: ...
is the obvious choice to me. If the first clause is false, it never 
computes the second.

-- 
Terry Jan Reedy