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


Groups > comp.lang.python > #94049

Re: Proposed keyword to transfer control to another function

Path csiph.com!optima2.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!1.eu.feeder.erje.net!newsfeed.xs4all.nl!newsfeed8.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 0.006
X-Spam-Evidence '*H*': 0.99; '*S*': 0.00; 'repeated': 0.07; 'stack.': 0.07; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'thread': 0.10; 'stack': 0.13; 'interest,': 0.16; 'received:80.91.229.3': 0.16; 'received:plane.gmane.org': 0.16; 'thread.': 0.16; 'wrote:': 0.16; 'debugging': 0.18; 'explicit': 0.22; 'unix': 0.24; 'header:In- Reply-To:1': 0.24; 'header:User-Agent:1': 0.26; 'header:X -Complaints-To:1': 0.26; 'chris': 0.26; 'feature,': 0.29; 'tail': 0.29; "i'm": 0.30; 'hopefully': 0.33; 'replace': 0.35; 'but': 0.36; 'there': 0.36; 'to:addr:python-list': 0.36; 'subject:: ': 0.37; 'received:org': 0.37; 'to:addr:python.org': 0.40; 'chance': 0.60; 'charset:windows-1252': 0.62; 'family': 0.68; 'disappears': 0.84; 'difficult,': 0.91; 'proposition': 0.93
X-Injected-Via-Gmane http://gmane.org/
To python-list@python.org
From Serhiy Storchaka <storchaka@gmail.com>
Subject Re: Proposed keyword to transfer control to another function
Date Sat, 18 Jul 2015 06:48:13 +0300
References <CAPTjJmq7_sG+HmMCBPWq2A3GQFPix-OjUTCu+yAmWiJmEFy6PA@mail.gmail.com>
Mime-Version 1.0
Content-Type text/plain; charset=windows-1252; format=flowed
Content-Transfer-Encoding 7bit
X-Gmane-NNTP-Posting-Host 193.202.118.165
User-Agent Mozilla/5.0 (X11; Linux i686; rv:31.0) Gecko/20100101 Thunderbird/31.7.0
In-Reply-To <CAPTjJmq7_sG+HmMCBPWq2A3GQFPix-OjUTCu+yAmWiJmEFy6PA@mail.gmail.com>
X-BeenThere python-list@python.org
X-Mailman-Version 2.1.20+
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.672.1437191299.3674.python-list@python.org> (permalink)
Lines 16
NNTP-Posting-Host 2001:888:2000:d::a6
X-Trace 1437191299 news.xs4all.nl 2852 [2001:888:2000:d::a6]:41144
X-Complaints-To abuse@xs4all.nl
Xref csiph.com comp.lang.python:94049

Show key headers only | View raw


On 17.07.15 02:46, Chris Angelico wrote:
> Out of the lengthy thread on tail call optimization has come one broad
> theory that might be of interest, so I'm spinning it off into its own
> thread.
>
> The concept is like the Unix exec[vlpe] family of functions: replace
> the current stack frame with a new one. This can be used for explicit
> tail recursion without repeated stack frames, or for a pre-check that
> then disappears out of the stack. Like any other feature, it can be
> misused to make debugging difficult, but among consenting adults,
> hopefully it can be used sensibly.

I think there is no chance that this proposition will be accepted by 
Guido, because it makes debugging harder.

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


Thread

Re: Proposed keyword to transfer control to another function Serhiy Storchaka <storchaka@gmail.com> - 2015-07-18 06:48 +0300
  Re: Proposed keyword to transfer control to another function Rustom Mody <rustompmody@gmail.com> - 2015-07-18 20:06 -0700

csiph-web