Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!news.stack.nl!newsfeed.xs4all.nl!newsfeed2.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 0.002 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'subject:Python': 0.06; 'none,': 0.07; 'false,': 0.09; 'from:addr:ethan': 0.09; 'from:addr:stoneleaf.us': 0.09; 'from:name:ethan furman': 0.09; 'message-id:@stoneleaf.us': 0.09; 'naturally': 0.09; '~ethan~': 0.09; 'awkward,': 0.16; 'reedy': 0.16; 'slice.': 0.16; 'index': 0.16; 'wrote:': 0.18; 'bit': 0.19; 'trying': 0.19; 'thu,': 0.19; '>>>': 0.22; 'example': 0.22; 'header:User-Agent:1': 0.23; 'header :In-Reply-To:1': 0.27; 'chris': 0.29; 'am,': 0.29; "i'm": 0.30; 'crash': 0.31; 'another': 0.32; 'maybe': 0.34; 'something': 0.35; 'but': 0.35; 'useful': 0.36; 'charset:us-ascii': 0.36; 'sometimes': 0.38; 'to:addr:python-list': 0.38; 'pm,': 0.38; 'to:addr:python.org': 0.39; 'received:173': 0.61; 'skip:n 10': 0.64; 'more': 0.64; 'received:69.56': 0.68; '2013': 0.98 Date: Thu, 10 Oct 2013 06:33:31 -0700 From: Ethan Furman User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:16.0) Gecko/20121010 Thunderbird/16.0.1 MIME-Version: 1.0 To: python-list@python.org Subject: Re: Python's and and Pythons or References: <91180c35-413f-4b65-a224-917d8d68b7ec@googlegroups.com> In-Reply-To: Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - gator3304.hostgator.com X-AntiAbuse: Original Domain - python.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - stoneleaf.us X-BWhitelist: no X-Source: X-Source-Args: X-Source-Dir: X-Source-Sender: ([173.12.184.233]) [173.12.184.233]:49849 X-Source-Auth: ethan+stoneleaf.us X-Email-Count: 1 X-Source-Cap: dG9idWs7dG9idWs7Z2F0b3IzMzA0Lmhvc3RnYXRvci5jb20= 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: 16 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1381415784 news.xs4all.nl 15896 [2001:888:2000:d::a6]:45165 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:56579 On 10/10/2013 12:43 AM, Terry Reedy wrote: > On 10/10/2013 2:45 AM, Chris Angelico wrote: >> On Thu, Oct 10, 2013 at 5:12 PM, Peter Cacioppi >> wrote: >>> I'm trying to think of a good example usage of echo-argument and. Maybe something like > >>> A bit awkward, echo-argument or is more naturally useful to me then echo-argument and. >> >> first_element = some_list[0] # Oops, may crash > > some_list[0:1] always works, and sometimes is usable, but you still cannot index the slice. Not if some_list is None, False, or another non-indexable type. -- ~Ethan~