Groups > comp.lang.python > #19667

Re: except clause syntax question

Path	csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!gegeweb.org!de-l.enfer-du-nord.net!feeder1.enfer-du-nord.net!tudelft.nl!txtfeed1.tudelft.nl!multikabel.net!newsfeed10.multikabel.net!xlned.com!feeder5.xlned.com!newsfeed.xs4all.nl!newsfeed6.news.xs4all.nl!xs4all!post.news.xs4all.nl!not-for-mail
Return-Path	<charles@declareSub.com>
X-Original-To	python-list@python.org
Delivered-To	python-list@mail.python.org
X-Spam-Status	OK 0.036
X-Spam-Evidence	'H': 0.93; 'S': 0.00; 'terry': 0.07; 'python': 0.08; 'tuple': 0.09; 'am,': 0.12; 'syntax': 0.15; '(read': 0.16; 'places.': 0.16; 'reedy': 0.16; 'subject:syntax': 0.16; 'subject:question': 0.16; 'wrote:': 0.16; 'jan': 0.19; 'header:In- Reply-To:1': 0.22; 'thanks.': 0.25; 'pm,': 0.26; 'lists': 0.28; 'problem': 0.29; 'objects.': 0.30; 'tuples': 0.30; 'x-mailer:apple mail (2.1084)': 0.30; 'objects': 0.32; 'to:addr:python-list': 0.33; 'object': 0.33; 'creates': 0.34; 'rather': 0.34; "i'll": 0.35; 'uses': 0.36; 'post': 0.36; 'charset:us-ascii': 0.36; 'somewhat': 0.38; 'allows': 0.38; 'several': 0.38; 'hoping': 0.38; 'think': 0.38; 'that.': 0.39; 'subject:: ': 0.39; 'to:addr:python.org': 0.40; 'your': 0.61; 'header:Message-Id:1': 0.62; '1.5': 0.64; '31,': 0.64; 'charles': 0.67; 'collection': 0.68; 'viewed': 0.82; '2012,': 0.84
Content-Type	text/plain; charset=us-ascii
Mime-Version	1.0 (Apple Message framework v1084)
Subject	Re: except clause syntax question
From	Charles Yeomans <charles@declareSub.com>
In-Reply-To	<jga01o$sbm$1@dough.gmane.org>
Date	Tue, 31 Jan 2012 19:27:38 -0500
Content-Transfer-Encoding	quoted-printable
References	<mailman.5218.1327946109.27778.python-list@python.org> <4f272f1f$0$29989$c3e8da3$5496439d@news.astraweb.com> <C481C0BC-63EF-45F9-B11F-A25D217249A6@declareSub.com> <jga01o$sbm$1@dough.gmane.org>
To	Python <python-list@python.org>
X-Mailer	Apple Mail (2.1084)
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.5268.1328056061.27778.python-list@python.org> (permalink)
Lines	29
NNTP-Posting-Host	2001:888:2000:d::a6
X-Trace	1328056061 news.xs4all.nl 6898 [2001:888:2000:d::a6]:47837
X-Complaints-To	abuse@xs4all.nl
Xref	x330-a1.tempe.blueboxinc.net comp.lang.python:19667

Show key headers only | View raw

On Jan 31, 2012, at 7:12 PM, Terry Reedy wrote:

> On 1/31/2012 8:57 AM, Charles Yeomans wrote:
> 
>> In any case, though I appreciate your attempt at a post hoc justification,
> > I was hoping for a positive explanation.
> 
> I think the best you are going to get is that Python somewhat consistently*, for both practical and historical reasons#, uses tuples when the syntax allows an object or collection of objects.
> 
> * except, isinstance, isubclass, ''%x, perhaps other places.
> 
> In the last case, that creates a problem when one wants to interpolate a tuple as an object rather than having it viewed as a container of several objects to be interpolated. That was on
> 
> # Python once treated tuples as different from lists in ways that is not true now. (Read the 1.5 docs if really interested.)
> 


I'll do that.  Thanks.


Charles Yeomans

Thread

except clause syntax question Charles Yeomans <charles@declareSub.com> - 2012-01-30 12:41 -0500
  Re: except clause syntax question Mel Wilson <mwilson@the-wire.com> - 2012-01-30 14:15 -0500
  Re: except clause syntax question Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-01-31 00:00 +0000
    Re: except clause syntax question Devin Jeanpierre <jeanpierreda@gmail.com> - 2012-01-30 19:25 -0500
    Re: except clause syntax question Charles Yeomans <charles@declareSub.com> - 2012-01-31 08:57 -0500
      Re: except clause syntax question Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-01-31 14:51 +0000
        Re: except clause syntax question Charles Yeomans <charles@declareSub.com> - 2012-01-31 11:23 -0500
        Re: except clause syntax question Devin Jeanpierre <jeanpierreda@gmail.com> - 2012-01-31 11:38 -0500
        Re: except clause syntax question Charles Yeomans <charles@declaresub.com> - 2012-01-31 12:29 -0500
        Re: except clause syntax question Ethan Furman <ethan@stoneleaf.us> - 2012-01-31 08:56 -0800
    Re: except clause syntax question Terry Reedy <tjreedy@udel.edu> - 2012-01-31 19:12 -0500
    Re: except clause syntax question Charles Yeomans <charles@declareSub.com> - 2012-01-31 19:27 -0500
  Re: except clause syntax question Mel Wilson <mwilson@the-wire.com> - 2012-01-31 08:24 -0500
    Re: except clause syntax question Charles Yeomans <charles@declareSub.com> - 2012-01-31 13:04 -0500
  Re: except clause syntax question Duncan Booth <duncan.booth@invalid.invalid> - 2012-01-31 22:03 +0000
    Re: except clause syntax question Chris Angelico <rosuav@gmail.com> - 2012-02-01 11:53 +1100
      Re: except clause syntax question Mel Wilson <mwilson@the-wire.com> - 2012-01-31 23:39 -0500
    Re: except clause syntax question Ian Kelly <ian.g.kelly@gmail.com> - 2012-01-31 18:09 -0700
    Re: except clause syntax question Ian Kelly <ian.g.kelly@gmail.com> - 2012-01-31 18:12 -0700
    Re: except clause syntax question Chris Angelico <rosuav@gmail.com> - 2012-02-01 13:46 +1100

csiph-web