Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.python > #72938

Re: try/except/finally

Path csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!feeds.phibee-telecom.net!newsfeed.xs4all.nl!newsfeed1a.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail
Return-Path <rosuav@gmail.com>
X-Original-To python-list@python.org
Delivered-To python-list@mail.python.org
X-Spam-Status OK 0.032
X-Spam-Evidence '*H*': 0.94; '*S*': 0.00; 'explicit': 0.07; 'exits': 0.09; 'cc:addr:python-list': 0.11; 'from:addr:rosuav': 0.16; 'from:name:chris angelico': 0.16; 'gotcha.': 0.16; 'ought': 0.16; 'raised.': 0.16; 'return,': 0.16; 'wrote:': 0.18; 'seems': 0.21; 'cc:addr:python.org': 0.22; 'error': 0.23; 'cc:2**0': 0.24; 'first,': 0.26; 'subject:/': 0.26; 'header:In-Reply-To:1': 0.27; 'am,': 0.29; 'statement': 0.30; 'message-id:@mail.gmail.com': 0.30; 'code': 0.31; "i'd": 0.34; 'but': 0.35; 'received:google.com': 0.35; 'little': 0.38; 'kind': 0.63; 'real': 0.63; 'finally': 0.65; 'ethan': 0.84; 'furman': 0.84; 'subject:try': 0.84; 'to:none': 0.92
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:cc :content-type; bh=gKUZv30KzYzdCgUlwbWoya90ZZrr0iThzoxnVtGljTQ=; b=y6dKuk0oiUHacCvXWbO5xAeAHXsYcsSvVOK99TYPyA3KT9bZqyvvikapZr0G9B54tu Tq3nh+q6s9gIUB81vX3XBBeuYZYoO3eSMVA3kaBrqw+T/IX9s7jklhPWxoZZGbJOeHOW I0QBFZO3MMKbw1AKRlM3TZgG4EAO14RWN577q6Ev/XmILo8v6ukETNdCJdQuldRrSr3h xtwId48x/61TAwTAQfJEBBHmiUVDYMfTNJ4PU+4/9I4+il8IFdqla5TjtASQ4LUOxsDA BcxVWEYu7W6fp7PpM5sx63s0uWjepwEjby9BmYVwYW+DbFYcbPVbA45ThAq7IUYocX/2 H3ow==
MIME-Version 1.0
X-Received by 10.220.59.65 with SMTP id k1mr16018995vch.22.1402184842136; Sat, 07 Jun 2014 16:47:22 -0700 (PDT)
In-Reply-To <539396F3.5090508@stoneleaf.us>
References <0a89c96d-de62-42ad-be48-6107ce10d215@googlegroups.com> <roy-04A043.13393106062014@news.panix.com> <e2f76f44-8e3f-4ba0-9530-0d9d1b2bfdb4@googlegroups.com> <lmt0tc$4di$1@ger.gmane.org> <539396F3.5090508@stoneleaf.us>
Date Sun, 8 Jun 2014 09:47:21 +1000
Subject Re: try/except/finally
From Chris Angelico <rosuav@gmail.com>
Cc "python-list@python.org" <python-list@python.org>
Content-Type text/plain; charset=UTF-8
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.10867.1402184850.18130.python-list@python.org> (permalink)
Lines 10
NNTP-Posting-Host 2001:888:2000:d::a6
X-Trace 1402184850 news.xs4all.nl 2893 [2001:888:2000:d::a6]:43060
X-Complaints-To abuse@xs4all.nl
Xref csiph.com comp.lang.python:72938

Show key headers only | View raw

On Sun, Jun 8, 2014 at 8:49 AM, Ethan Furman <ethan@stoneleaf.us> wrote:
> I don't remember if I almost had this in real code or if I learned about it
> first, but it can definitely be a gotcha. It seems to me that if the try
> block exits with an explicit return, and then the finally block exits with
> an explicit return, some kind of error ought to be raised.

I'd go a little simpler: A return statement inside a finally block is
code smell.

ChrisA

Back to comp.lang.python | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

try/except/finally Frank B <fbicknel@gmail.com> - 2014-06-06 10:30 -0700
  Re: try/except/finally Roy Smith <roy@panix.com> - 2014-06-06 13:39 -0400
    Re: try/except/finally Frank B <fbicknel@gmail.com> - 2014-06-06 10:47 -0700
      Re: try/except/finally Ned Batchelder <ned@nedbatchelder.com> - 2014-06-06 14:22 -0400
      Re: try/except/finally Ethan Furman <ethan@stoneleaf.us> - 2014-06-07 15:49 -0700
      Re: try/except/finally Chris Angelico <rosuav@gmail.com> - 2014-06-08 09:47 +1000
        Re: try/except/finally Roy Smith <roy@panix.com> - 2014-06-07 20:12 -0400
          Re: try/except/finally Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-06-08 02:10 +0100
            Re: try/except/finally Roy Smith <roy@panix.com> - 2014-06-07 21:32 -0400
            Re: try/except/finally Marko Rauhamaa <marko@pacujo.net> - 2014-06-08 10:12 +0300
              Re: try/except/finally Joshua Landau <joshua@landau.ws> - 2014-06-08 18:57 +0100
              Re: try/except/finally Ian Kelly <ian.g.kelly@gmail.com> - 2014-06-08 12:07 -0600
              Re: try/except/finally Ian Kelly <ian.g.kelly@gmail.com> - 2014-06-08 12:02 -0600
        Re: try/except/finally Rustom Mody <rustompmody@gmail.com> - 2014-06-07 20:58 -0700
          Re: try/except/finally Thomas Rachel <nutznetz-0c1b6768-bfa9-48d5-a470-7603bd3aa915@spamschutz.glglgl.de> - 2014-06-10 09:27 +0200
            Re: try/except/finally Marko Rauhamaa <marko@pacujo.net> - 2014-06-10 12:07 +0300
            Re: try/except/finally Rustom Mody <rustompmody@gmail.com> - 2014-06-10 05:06 -0700
              Re: try/except/finally Skip Montanaro <skip@pobox.com> - 2014-06-10 13:11 -0500
                Re: try/except/finally Rustom Mody <rustompmody@gmail.com> - 2014-06-10 19:01 -0700
            Re: try/except/finally Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-06-10 19:14 +0100
              Re: try/except/finally Grant Edwards <invalid@invalid.invalid> - 2014-06-10 18:48 +0000
                Re: try/except/finally Chris Angelico <rosuav@gmail.com> - 2014-06-11 06:37 +1000
                Re: try/except/finally Roy Smith <roy@panix.com> - 2014-06-10 16:38 -0400
                Re: try/except/finally Chris Angelico <rosuav@gmail.com> - 2014-06-11 06:43 +1000
                Re: try/except/finally Ethan Furman <ethan@stoneleaf.us> - 2014-06-10 13:43 -0700
                Re: try/except/finally Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-06-10 22:59 +0100
                Re: try/except/finally Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-06-11 00:00 +0000
                Re: try/except/finally Chris Angelico <rosuav@gmail.com> - 2014-06-11 10:12 +1000
                Re: try/except/finally Roy Smith <roy@panix.com> - 2014-06-10 20:22 -0400
                Re: try/except/finally Tim Delaney <timothy.c.delaney@gmail.com> - 2014-06-11 10:40 +1000
                Re: try/except/finally Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-06-11 01:53 +0100
                Re: try/except/finally Chris Angelico <rosuav@gmail.com> - 2014-06-11 11:00 +1000
                Re: try/except/finally Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-06-11 02:06 +0100
                Re: try/except/finally alister <alister.nospam.ware@ntlworld.com> - 2014-06-11 08:35 +0000
                Re: try/except/finally Roy Smith <roy@panix.com> - 2014-06-11 08:50 -0400
              Re: try/except/finally alister <alister.nospam.ware@ntlworld.com> - 2014-06-10 19:02 +0000
    Re: try/except/finally Joshua Landau <joshua@landau.ws> - 2014-06-08 19:05 +0100
  Re:try/except/finally Dave Angel <davea@davea.name> - 2014-06-07 21:59 -0500
    Re: try/except/finally Philip Shaw <jnufcvyvuc@tznvy.pbz> - 2014-06-09 09:13 +0000
      Re: try/except/finally Marko Rauhamaa <marko@pacujo.net> - 2014-06-09 12:40 +0300
        Re: try/except/finally Shiyao Ma <i@introo.me> - 2014-06-10 00:23 +0800
        Re: try/except/finally Skip Montanaro <skip@pobox.com> - 2014-06-09 11:56 -0500

csiph-web