Path: csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!aioe.org!feeder.news-service.com!news2.euro.net!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail
Return-Path: <sahil@FreeBSD.org>
X-Original-To: python-list@python.org
Delivered-To: python-list@mail.python.org
X-Spam-Status: OK 0.025
X-Spam-Evidence: '*H*': 0.95; '*S*': 0.00; 'subject:while': 0.07; 'none:': 0.09; 'parsing': 0.09; '"none"': 0.16; 'bieber': 0.16; 'input,': 0.16; 'question.': 0.16; 'wrote:': 0.16; 'discussion': 0.22; 'header:In-Reply-To:1': 0.22; 'sep': 0.23; 'input': 0.24; 'preferred': 0.25; 'lee': 0.28; 'thu,': 0.28; 'exit': 0.29; 'print': 0.29; 'thanks': 0.30; 'there': 0.33; 'to:addr:python- list': 0.33; 'header:User-Agent:1': 0.34; 'focus': 0.34; 'things': 0.34; 'object': 0.35; 'received:76': 0.37; 'received:org': 0.38; 'subject:: ': 0.39; 'to:addr:python.org': 0.39; 'interest': 0.65; 'note:': 0.68; 'dennis': 0.77; 'excluded': 0.91
X-Virus-Scanned: by ClamAV at spartan.hamla.org
Date: Fri, 02 Sep 2011 15:56:46 -0400
From: Sahil Tandon <sahil@FreeBSD.org>
User-Agent: Postbox Express 1.0.1 (Macintosh/20100705)
MIME-Version: 1.0
To: python-list@python.org
Subject: Re: idiomatic analogue of Perl's: while (<>) { ... }
References: <20110901045650.GA3466@magic.hamla.org> <j3pp0q$6n4$1@dough.gmane.org>
In-Reply-To: <j3pp0q$6n4$1@dough.gmane.org>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
X-BeenThere: python-list@python.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe: <http://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: <http://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Newsgroups: comp.lang.python
Message-ID: <mailman.716.1314993413.27778.python-list@python.org>
Lines: 21
NNTP-Posting-Host: 2001:888:2000:d::a6
X-Trace: 1314993413 news.xs4all.nl 2461 [2001:888:2000:d::a6]:38339
X-Complaints-To: abuse@xs4all.nl
Xref: x330-a1.tempe.blueboxinc.net comp.lang.python:12668

Dennis Lee Bieber wrote:
> On Thu, 1 Sep 2011 00:56:50 -0400, Sahil Tandon<sahil@FreeBSD.org>
>> # process input, line-by-line, and print responses after parsing input
>> while 1:
>>    rval = parse(raw_input())
>>    if rval == None:
>
> 	There is only ONE "None" object so the preferred method is
>
> 	if rval is None:

Understood; thanks for that enlightenment.

> 	Note: I don't see any exit handler/condition...

Indeed.  I excluded such things in the interest of brevity, to focus the 
discussion on my question. :)

-- 
Sahil Tandon <sahil@FreeBSD.org>