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

Groups > comp.lang.python > #78555

Re: Clearing globals in CPython

Path csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!fdn.fr!usenet-fr.net!nerim.net!novso.com!newsfeed.xs4all.nl!newsfeed2.news.xs4all.nl!xs4all!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 0.011
X-Spam-Evidence '*H*': 0.98; '*S*': 0.00; 'exit': 0.09; 'restart': 0.09; 'throws': 0.09; 'cc:addr:python-list': 0.11; 'python': 0.11; 'backtrace,': 0.16; 'from:addr:rosuav': 0.16; 'from:name:chris angelico': 0.16; 'mode,': 0.16; 'old-style': 0.16; 'subject:Clearing': 0.16; 'wrote:': 0.18; 'obviously': 0.18; 'thu,': 0.19; 'cc:addr:python.org': 0.22; 'cc:2**0': 0.24; 'define': 0.26; 'header:In-Reply-To:1': 0.27; 'am,': 0.29; 'raise': 0.29; 'errors': 0.30; 'message-id:@mail.gmail.com': 0.30; "i'm": 0.30; 'that.': 0.31; 'breaking': 0.31; 'bunch': 0.31; "d'aprano": 0.31; 'restricted': 0.31; 'steven': 0.31; 'class': 0.32; 'there.': 0.32; 'entirely': 0.33; 'skip:_ 10': 0.34; 'but': 0.35; 'received:google.com': 0.35; 'there': 0.35; 'really': 0.36; 'easiest': 0.38; 'sure': 0.39; 'how': 0.40; 'experts': 0.60; 'here': 0.66; 'removal': 0.74; 'recover': 0.91; '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=5KWApR+4mhwAS26TLVwId7nIwN5ys0FGLIgd4mMxAAM=; b=OX9BlZJlvbbkCOPTr3S5uD5Fc9c6IEtXPUKo4N2CJ21rfuY4ByeDMG1v1A4SC1GMtC 2yGJLIAAE3I8OMC5uQpTnlQdiI+UzO9jEm6puuFlA6P15VJ0CRBoXd277UGyt8FFKlE+ BK30XPSUIAGsDQnOC4iMY/tXN5E2XtdeSZJTkFz+vo4qCYafmgzbzRodaIAfjdqfysyZ e3+8fPOlkJ4ecnSW8pIALh15hjd7SB3IXPl/yMs9Qtdg8xpd2IfRa95ajuyBOm93Hjc+ kwht4qWH/w/4Retifh5sqZyv6fhE6dSJf7L9HpAjy2yluEp9A9X5SwuJ0/IiR3EkHSqC h8lg==
MIME-Version 1.0
X-Received by 10.51.17.2 with SMTP id ga2mr21516825igd.2.1412180043890; Wed, 01 Oct 2014 09:14:03 -0700 (PDT)
In-Reply-To <542c2527$0$13013$c3e8da3$5496439d@news.astraweb.com>
References <542c2527$0$13013$c3e8da3$5496439d@news.astraweb.com>
Date Thu, 2 Oct 2014 02:14:03 +1000
Subject Re: Clearing globals in CPython
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.14522.1412180046.18130.python-list@python.org> (permalink)
Lines 14
NNTP-Posting-Host 2001:888:2000:d::a6
X-Trace 1412180046 news.xs4all.nl 2861 [2001:888:2000:d::a6]:44352
X-Complaints-To abuse@xs4all.nl
Xref csiph.com comp.lang.python:78555

Show key headers only | View raw

On Thu, Oct 2, 2014 at 2:00 AM, Steven D'Aprano
<steve+comp.lang.python@pearwood.info> wrote:
> Obviously the easiest way to recover is to exit the current session and
> restart it, but as a challenge, can we recover from this state?

Oooh interesting. This is kinda like breaking out of a sandbox, and I
know there are people here who are experts at that. However... I'm not
entirely sure how to get a backtrace, when you don't have any built-in
exceptions! In Python 2, I can define an old-style class and raise
that. However, with the removal of __builtins__, Python throws a bunch
of errors about restricted mode, so I'm really not sure where to go
from there.

ChrisA

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

Thread

Clearing globals in CPython Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-10-02 02:00 +1000
  Re: Clearing globals in CPython Chris Angelico <rosuav@gmail.com> - 2014-10-02 02:14 +1000
  Re: Clearing globals in CPython Chris Kaynor <ckaynor@zindagigames.com> - 2014-10-01 10:08 -0700
  Re: Clearing globals in CPython Peter Otten <__peter__@web.de> - 2014-10-01 19:24 +0200
    Re: Clearing globals in CPython Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2014-10-02 18:11 +1000
      Re: Clearing globals in CPython Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-10-02 09:30 +0100
    Re: Clearing globals in CPython jakubo <jakubo@example.org> - 2014-10-06 09:05 +0000
      Re: Clearing globals in CPython Steven D'Aprano <steve@pearwood.info> - 2014-10-06 09:08 +0000
        Re: Clearing globals in CPython Chris Angelico <rosuav@gmail.com> - 2014-10-06 20:30 +1100
  Re: Clearing globals in CPython Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-10-01 19:17 +0100
  Re: Clearing globals in CPython Terry Reedy <tjreedy@udel.edu> - 2014-10-01 14:44 -0400
  Re: Clearing globals in CPython Marco Buttu <marco.buttu@gmail.com> - 2014-10-01 18:39 +0200
  Re: Clearing globals in CPython Grant Edwards <invalid@invalid.invalid> - 2014-10-02 14:07 +0000
    Re: Clearing globals in CPython Chris Angelico <rosuav@gmail.com> - 2014-10-03 00:12 +1000
    Re: Clearing globals in CPython Stefan Behnel <stefan_ml@behnel.de> - 2014-10-03 07:26 +0200

csiph-web