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

Groups > comp.lang.python > #26132

Re: from future import pass_function

Path csiph.com!usenet.pasdenom.info!weretis.net!feeder4.news.weretis.net!feeder2.ecngs.de!ecngs!feeder.ecngs.de!xlned.com!feeder1.xlned.com!newsfeed.xs4all.nl!newsfeed5.news.xs4all.nl!xs4all!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 0.001
X-Spam-Evidence '*H*': 1.00; '*S*': 0.00; 'argument': 0.04; 'context': 0.05; 'none:': 0.05; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'terry': 0.09; 'def': 0.10; 'languages.': 0.15; 'message-id:@dough.gmane.org': 0.16; 'received:80.91.229.3': 0.16; 'received:plane.gmane.org': 0.16; 'reedy': 0.16; 'subject:import': 0.16; 'wrote:': 0.17; 'jan': 0.18; 'code.': 0.20; 'posted': 0.22; 'statement': 0.23; 'idea': 0.24; 'pass': 0.25; 'header:In-Reply-To:1': 0.25; 'header:User-Agent:1': 0.26; '---': 0.26; 'wrote': 0.26; 'see,': 0.27; 'thoughts': 0.27; 'header:X-Complaints-To:1': 0.28; "i'm": 0.29; 'function': 0.30; 'url:python': 0.32; 'could': 0.32; 'to:addr:python-list': 0.33; 'pm,': 0.35; 'similar': 0.35; 'received:org': 0.36; 'but': 0.36; 'should': 0.36; 'rather': 0.37; 'subject:: ': 0.38; 'nothing': 0.38; 'science': 0.38; 'to:addr:python.org': 0.39; 'header:Received:5': 0.40; 'john': 0.60; 'here:': 0.62; 'more': 0.63; 'eight': 0.71; 'received:fios.verizon.net': 0.84; 'url:lang': 0.84
X-Injected-Via-Gmane http://gmane.org/
To python-list@python.org
From Terry Reedy <tjreedy@udel.edu>
Subject Re: from future import pass_function
Date Fri, 27 Jul 2012 00:21:56 -0400
References <d1o4e9-tlr.ln1@satorlaser.homedns.org> <5571fa66-edf7-4fb4-8ae4-87ad70c32abc@googlegroups.com>
Mime-Version 1.0
Content-Type text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding 7bit
X-Gmane-NNTP-Posting-Host pool-173-75-251-66.phlapa.fios.verizon.net
User-Agent Mozilla/5.0 (Windows NT 6.1; WOW64; rv:13.0) Gecko/20120614 Thunderbird/13.0.1
In-Reply-To <5571fa66-edf7-4fb4-8ae4-87ad70c32abc@googlegroups.com>
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.2647.1343362953.4697.python-list@python.org> (permalink)
Lines 27
NNTP-Posting-Host 2001:888:2000:d::a6
X-Trace 1343362953 news.xs4all.nl 6884 [2001:888:2000:d::a6]:33433
X-Complaints-To abuse@xs4all.nl
Xref csiph.com comp.lang.python:26132

Show key headers only | View raw

On 7/26/2012 4:48 PM, John Ladasky wrote:

> I had very similar thoughts about eight months ago, and posted them
> here:
>
> https://groups.google.com/forum/?fromgroups#!topic/comp.lang.python/CB_5fek2b8A
>
>  I'm no computer science guru, but the idea that pass should be a
> function rather than a statement continues to appeal to me.

A do nothing statement is standard in statement based languages. It is 
not going away.

> can see, I actually wrote just such a function so that I could use it
> as an argument in my code.

For one time use: lambda:None

For multiple use: def none: pass  # same as return None in this context

A function needs a lot more meat than that to be added as a builtin.

---
Terry Jan Reedy

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

Thread

from future import pass_function Ulrich Eckhardt <ulrich.eckhardt@dominolaser.com> - 2012-07-25 10:40 +0200
  Re: from future import pass_function Philipp Hagemeister <phihag@phihag.de> - 2012-07-25 12:30 +0200
  Re: from future import pass_function Nicholas Cole <nicholas.cole@gmail.com> - 2012-07-25 11:33 +0100
  Re: from future import pass_function Devin Jeanpierre <jeanpierreda@gmail.com> - 2012-07-25 07:02 -0400
  Re: from future import pass_function Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-07-25 11:33 +0000
    Re: from future import pass_function Ross Ridge <rridge@csclub.uwaterloo.ca> - 2012-07-25 21:42 -0400
      Re: from future import pass_function Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-07-26 02:38 +0000
        Re: from future import pass_function Ross Ridge <rridge@csclub.uwaterloo.ca> - 2012-07-25 23:30 -0400
          Re: from future import pass_function Chris Angelico <rosuav@gmail.com> - 2012-07-26 13:53 +1000
            Re: from future import pass_function Ross Ridge <rridge@csclub.uwaterloo.ca> - 2012-07-26 00:03 -0400
              Re: from future import pass_function Ethan Furman <ethan@stoneleaf.us> - 2012-07-25 21:32 -0700
                Re: from future import pass_function John Ladasky <john_ladasky@sbcglobal.net> - 2012-07-26 13:55 -0700
                Re: from future import pass_function Ethan Furman <ethan@stoneleaf.us> - 2012-07-26 14:23 -0700
                Re: from future import pass_function John Ladasky <john_ladasky@sbcglobal.net> - 2012-07-26 15:20 -0700
                Re: from future import pass_function John Ladasky <john_ladasky@sbcglobal.net> - 2012-07-26 15:20 -0700
                Re: from future import pass_function John Ladasky <john_ladasky@sbcglobal.net> - 2012-07-26 13:55 -0700
              Re: from future import pass_function Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-07-26 08:43 +0100
          Re: from future import pass_function alex23 <wuwei23@gmail.com> - 2012-07-25 21:20 -0700
        Re: from future import pass_function Rusi <rustompmody@gmail.com> - 2012-07-25 22:09 -0700
        Re: from future import pass_function Ulrich Eckhardt <ulrich.eckhardt@dominolaser.com> - 2012-07-26 08:59 +0200
          Re: from future import pass_function Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-07-26 09:26 +0000
            Re: from future import pass_function Ulrich Eckhardt <ulrich.eckhardt@dominolaser.com> - 2012-07-26 13:45 +0200
              Re: from future import pass_function Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-07-26 15:21 +0000
                Re: from future import pass_function Joel Goldstick <joel.goldstick@gmail.com> - 2012-07-26 12:55 -0400
                RE: from future import pass_function "Prasad, Ramit" <ramit.prasad@jpmorgan.com> - 2012-07-26 17:19 +0000
                Re: from future import pass_function Chris Angelico <rosuav@gmail.com> - 2012-07-27 03:33 +1000
                Re: from future import pass_function Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-07-27 00:25 +0100
                Re: from future import pass_function Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-07-27 00:23 +0100
      Re: from future import pass_function alex23 <wuwei23@gmail.com> - 2012-07-25 21:17 -0700
  Re: from future import pass_function Chris Angelico <rosuav@gmail.com> - 2012-07-26 02:05 +1000
    Re: from future import pass_function Ulrich Eckhardt <ulrich.eckhardt@dominolaser.com> - 2012-07-26 08:39 +0200
      Re: from future import pass_function Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-07-26 08:36 +0000
      Re: from future import pass_function Terry Reedy <tjreedy@udel.edu> - 2012-07-26 10:38 -0400
  Re: from future import pass_function Ethan Furman <ethan@stoneleaf.us> - 2012-07-25 09:28 -0700
  Re: from future import pass_function Devin Jeanpierre <jeanpierreda@gmail.com> - 2012-07-25 12:48 -0400
  Re: from future import pass_function Devin Jeanpierre <jeanpierreda@gmail.com> - 2012-07-25 14:17 -0400
  Re: from future import pass_function Michael Hrivnak <mhrivnak@hrivnak.org> - 2012-07-26 01:20 -0400
    Re: from future import pass_function Ulrich Eckhardt <ulrich.eckhardt@dominolaser.com> - 2012-07-26 08:42 +0200
      Re: from future import pass_function Michael Hrivnak <mhrivnak@hrivnak.org> - 2012-07-26 17:15 -0400
  Re: from future import pass_function Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-07-26 08:50 +0100
    Re: from future import pass_function Ulrich Eckhardt <ulrich.eckhardt@dominolaser.com> - 2012-07-27 08:39 +0200
  Re: from future import pass_function Devin Jeanpierre <jeanpierreda@gmail.com> - 2012-07-26 05:16 -0400
  Re: from future import pass_function Chris Angelico <rosuav@gmail.com> - 2012-07-26 19:42 +1000
  Re: from future import pass_function Devin Jeanpierre <jeanpierreda@gmail.com> - 2012-07-26 06:00 -0400
  Re: from future import pass_function rusi <rustompmody@gmail.com> - 2012-07-26 08:01 -0700
  Re: from future import pass_function Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2012-07-26 14:01 -0400
  Re: from future import pass_function Chris Angelico <rosuav@gmail.com> - 2012-07-27 04:14 +1000
  Re: from future import pass_function John Ladasky <john_ladasky@sbcglobal.net> - 2012-07-26 13:48 -0700
    Re: from future import pass_function Ian Kelly <ian.g.kelly@gmail.com> - 2012-07-26 15:18 -0600
    Re: from future import pass_function Ethan Furman <ethan@stoneleaf.us> - 2012-07-26 15:35 -0700
    Re: from future import pass_function Terry Reedy <tjreedy@udel.edu> - 2012-07-27 00:21 -0400
  Re: from future import pass_function Michael Hrivnak <mhrivnak@hrivnak.org> - 2012-07-26 17:20 -0400

csiph-web