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

Groups > comp.lang.python > #74167

Re: open() and EOFError

Path csiph.com!usenet.pasdenom.info!aioe.org!news.stack.nl!newsfeed.xs4all.nl!newsfeed1a.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!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 0.000
X-Spam-Evidence '*H*': 1.00; '*S*': 0.00; '(at': 0.04; 'e.g.,': 0.09; 'lawrence': 0.09; 'pep': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'windows': 0.15; 'cleaner': 0.16; 'command.': 0.16; 'eof': 0.16; 'finer': 0.16; 'guarded': 0.16; 'ioerror:': 0.16; 'open()': 0.16; 'received:80.91.229.3': 0.16; 'received:plane.gmane.org': 0.16; 'wrote:': 0.18; 'code.': 0.18; 'bit': 0.19; '>>>': 0.22; 'header:User-Agent:1': 0.23; 'handling': 0.26; 'least': 0.26; 'header:X-Complaints-To:1': 0.27; 'header:In- Reply-To:1': 0.27; 'ignored.': 0.30; 'usually': 0.31; 'exceptions': 0.31; 'file': 0.32; 'another': 0.32; 'maybe': 0.34; 'could': 0.34; 'except': 0.35; 'but': 0.35; 'revert': 0.36; 'to:addr:python-list': 0.38; 'pm,': 0.38; 'to:addr:python.org': 0.39; 'received:org': 0.40; 'providing': 0.61; 'within': 0.65; 'home.': 0.72
X-Injected-Via-Gmane http://gmane.org/
To python-list@python.org
From "Neil D. Cerutti" <neilc@norwich.edu>
Subject Re: open() and EOFError
Date Tue, 08 Jul 2014 10:29:18 -0400
References <53ba11fc$0$29985$c3e8da3$5496439d@news.astraweb.com> <c1uo2eF60gfU1@mid.individual.net> <53ba538d$0$2926$c3e8da3$76491128@news.astraweb.com> <CAPTjJmos00xjJVMZFKY1F9Z8L+ByusHD-ciuats5FYbwQ6RF+g@mail.gmail.com> <mailman.11603.1404753981.18130.python-list@python.org> <87wqbp9it2.fsf@elektro.pacujo.net> <c20k45Fijs1U1@mid.individual.net> <lpf9ca$jgm$1@ger.gmane.org>
Mime-Version 1.0
Content-Type text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding 7bit
X-Gmane-NNTP-Posting-Host jackman.norwich.edu
User-Agent Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0
In-Reply-To <lpf9ca$jgm$1@ger.gmane.org>
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.11625.1404829781.18130.python-list@python.org> (permalink)
Lines 35
NNTP-Posting-Host 2001:888:2000:d::a6
X-Trace 1404829781 news.xs4all.nl 2929 [2001:888:2000:d::a6]:36598
X-Complaints-To abuse@xs4all.nl
Xref csiph.com comp.lang.python:74167

Show key headers only | View raw

On 7/7/2014 7:10 PM, Mark Lawrence wrote:
> On 07/07/2014 23:09, Gregory Ewing wrote:
>> Marko Rauhamaa wrote:
>>>     with open(path) as f:
>>>         ...
>>>
>>> If the open() call is guarded against exceptions (as it usually should),
>>> one must revert to the classic syntax:
>>
>> Hmmm, maybe we could do with a with-except statement:
>>
>>     with open(path) as f:
>>        ...
>>     except IOError:
>>        # Catches exceptions in the with-expression only
>>        ...
>>
>> Although that would be a bit confusing.
>
> I wrap the with inside a try/except, the other file handling parts
> within another try/except and use the finer grained exceptions from PEP
> 3151 to write (at least to my eye) cleaner looking code.  Somehow I
> think we'll get agreement on the best way to do this when the cows come
> home.

On Windows it's my experience that EOF from interactive sessions is 
ignored. Programs keep going as best they can, providing some other 
means of exit, e.g., an 'exit' command.

But maybe that's just the shell.

-- 
Neil Cerutti

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

Thread

open() and EOFError Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-07-07 03:20 +0000
  Re: open() and EOFError Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2014-07-07 17:04 +1200
    Re: open() and EOFError Steven D'Aprano <steve@pearwood.info> - 2014-07-07 08:00 +0000
      Re: open() and EOFError Chris Angelico <rosuav@gmail.com> - 2014-07-07 18:09 +1000
      Re: open() and EOFError Dave Angel <davea@davea.name> - 2014-07-07 08:14 -0400
      Re: open() and EOFError Chris Angelico <rosuav@gmail.com> - 2014-07-07 22:19 +1000
        Re: open() and EOFError Roy Smith <roy@panix.com> - 2014-07-07 08:46 -0400
          Re: open() and EOFError Chris Angelico <rosuav@gmail.com> - 2014-07-07 22:58 +1000
            Re: open() and EOFError Roy Smith <roy@panix.com> - 2014-07-07 20:26 -0400
          Re: open() and EOFError Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2014-07-08 09:50 +1200
        Re: open() and EOFError Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-07-07 15:45 +0000
          Re: open() and EOFError Chris Angelico <rosuav@gmail.com> - 2014-07-08 01:53 +1000
          Re: open() and EOFError Marko Rauhamaa <marko@pacujo.net> - 2014-07-07 19:08 +0300
            Re: open() and EOFError Marko Rauhamaa <marko@pacujo.net> - 2014-07-07 19:12 +0300
      Re: open() and EOFError Roy Smith <roy@panix.com> - 2014-07-07 08:39 -0400
        Re: open() and EOFError Chris Angelico <rosuav@gmail.com> - 2014-07-07 22:55 +1000
          Re: open() and EOFError Roy Smith <roy@panix.com> - 2014-07-07 20:28 -0400
        Re: open() and EOFError Terry Reedy <tjreedy@udel.edu> - 2014-07-07 14:49 -0400
          Re: open() and EOFError Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2014-07-08 10:04 +1200
            Re: open() and EOFError Grant Edwards <invalid@invalid.invalid> - 2014-07-08 14:19 +0000
              Re: open() and EOFError Terry Reedy <tjreedy@udel.edu> - 2014-07-08 11:08 -0400
              Re: open() and EOFError Tim Chase <python.list@tim.thechases.com> - 2014-07-08 10:20 -0500
              Re: open() and EOFError Chris Angelico <rosuav@gmail.com> - 2014-07-09 01:24 +1000
              Re: open() and EOFError Tim Chase <python.list@tim.thechases.com> - 2014-07-08 10:46 -0500
                Re: open() and EOFError Roy Smith <roy@panix.com> - 2014-07-08 21:05 -0400
                Re: open() and EOFError Anssi Saari <as@sci.fi> - 2014-07-10 22:40 +0300
              Re: open() and EOFError Chris Angelico <rosuav@gmail.com> - 2014-07-09 01:49 +1000
              Re: ^D vs ^Z as EOF and DOS dinosaurs talking (was: open() and EOFError) Tim Chase <python.list@tim.thechases.com> - 2014-07-08 10:57 -0500
                Re: ^D vs ^Z as EOF and DOS dinosaurs talking (was: open() and EOFError) Jan van den Broek <balglaas@xs4all.nl> - 2014-07-08 16:38 +0000
              Re: ^D vs ^Z as EOF and DOS dinosaurs talking (was: open() and EOFError) Chris Angelico <rosuav@gmail.com> - 2014-07-09 02:20 +1000
              Re: open() and EOFError Tim Chase <python.list@tim.thechases.com> - 2014-07-08 11:40 -0500
              Re: open() and EOFError Chris Angelico <rosuav@gmail.com> - 2014-07-09 02:50 +1000
          Re: open() and EOFError Steven D'Aprano <steve@pearwood.info> - 2014-07-08 09:03 +0000
            Re: open() and EOFError Chris Angelico <rosuav@gmail.com> - 2014-07-08 20:29 +1000
      Re: open() and EOFError Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-07-07 14:06 +0100
      Re: open() and EOFError Chris Angelico <rosuav@gmail.com> - 2014-07-07 23:27 +1000
      Re: open() and EOFError Chris Angelico <rosuav@gmail.com> - 2014-07-07 23:29 +1000
      Re: open() and EOFError Dan Stromberg <drsalists@gmail.com> - 2014-07-07 09:07 -0700
      Re: open() and EOFError Ian Kelly <ian.g.kelly@gmail.com> - 2014-07-07 11:25 -0600
        Re: open() and EOFError Marko Rauhamaa <marko@pacujo.net> - 2014-07-07 20:31 +0300
          Re: open() and EOFError Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-07-07 18:07 +0000
            Re: open() and EOFError Marko Rauhamaa <marko@pacujo.net> - 2014-07-07 21:42 +0300
            Re: open() and EOFError Roy Smith <roy@panix.com> - 2014-07-07 20:22 -0400
          Re: open() and EOFError Gregory Ewing <greg.ewing@canterbury.ac.nz> - 2014-07-08 10:09 +1200
            Re: open() and EOFError Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-07-08 00:10 +0100
            Re: open() and EOFError "Neil D. Cerutti" <neilc@norwich.edu> - 2014-07-08 10:29 -0400
      Re: open() and EOFError Chris Angelico <rosuav@gmail.com> - 2014-07-08 03:29 +1000
        Re: open() and EOFError Marko Rauhamaa <marko@pacujo.net> - 2014-07-07 20:40 +0300
          Re: open() and EOFError Chris Angelico <rosuav@gmail.com> - 2014-07-08 10:55 +1000
      Re: open() and EOFError Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2014-07-07 18:54 -0400

csiph-web