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

Groups > comp.lang.python > #26651

Re: looking for a neat solution to a nested loop problem

Path csiph.com!usenet.pasdenom.info!aioe.org!news.stack.nl!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 0.003
X-Spam-Evidence '*H*': 0.99; '*S*': 0.00; 'algorithm': 0.03; 'nested': 0.07; 'suppose': 0.07; 'tom': 0.07; 'iterate': 0.09; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'aug': 0.13; 'received:80.91.229.3': 0.16; 'received:plane.gmane.org': 0.16; 'mon,': 0.16; 'subject:problem': 0.22; 'values': 0.26; 'header:X -Complaints-To:1': 0.28; 'this?': 0.28; 'initial': 0.28; 'optional': 0.29; '+0200,': 0.33; 'url:home': 0.33; 'to:addr :python-list': 0.33; 'sequence': 0.35; 'there': 0.35; 'received:org': 0.36; 'but': 0.36; 'charset:us-ascii': 0.36; 'subject:: ': 0.38; 'some': 0.38; 'to:addr:python.org': 0.39; 'takes': 0.39; 'where': 0.40; 'header:Received:5': 0.40; '10,000': 0.65; '100': 0.78; 'dennis': 0.91; 'subject:looking': 0.91
X-Injected-Via-Gmane http://gmane.org/
To python-list@python.org
From Dennis Lee Bieber <wlfraed@ix.netcom.com>
Subject Re: looking for a neat solution to a nested loop problem
Date Mon, 06 Aug 2012 15:31:09 -0400
Organization > Bestiaria Support Staff <
References <a8a7hvF8crU1@mid.individual.net>
Mime-Version 1.0
Content-Type text/plain; charset=us-ascii
Content-Transfer-Encoding 7bit
X-Gmane-NNTP-Posting-Host adsl-76-249-23-211.dsl.klmzmi.sbcglobal.net
X-Newsreader Forte Agent 3.3/32.846
X-No-Archive YES
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.3025.1344281720.4697.python-list@python.org> (permalink)
Lines 27
NNTP-Posting-Host 2001:888:2000:d::a6
X-Trace 1344281720 news.xs4all.nl 6914 [2001:888:2000:d::a6]:34473
X-Complaints-To abuse@xs4all.nl
Xref csiph.com comp.lang.python:26651

Show key headers only | View raw

On Mon, 06 Aug 2012 17:52:31 +0200, Tom P <werotizy@freent.dd> declaimed
the following in gmane.comp.python.general:

> consider a nested loop algorithm -
> 
> for i in range(100):
>      for j in range(100):
>          do_something(i,j)
> 
> Now, suppose I don't want to use i = 0 and j = 0 as initial values, but 
> some other values i = N and j = M, and I want to iterate through all 

	range() takes an optional "start" and "increment"

	for i in range(istart, istart+ilength):
		for j in range(jstart, jstart+jlength):
			do_something(i, j)

where "istart" is N and "jstart" is M

> 10,000 values in sequence - is there a neat python-like way to this? I 

and ilength|jlength is 100
-- 
	Wulfraed                 Dennis Lee Bieber         AF6VN
        wlfraed@ix.netcom.com    HTTP://wlfraed.home.netcom.com/

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

Thread

looking for a neat solution to a nested loop problem Tom P <werotizy@freent.dd> - 2012-08-06 17:52 +0200
  Re: looking for a neat solution to a nested loop problem John Gordon <gordon@panix.com> - 2012-08-06 16:03 +0000
    Re: looking for a neat solution to a nested loop problem Tom P <werotizy@freent.dd> - 2012-08-06 19:16 +0200
      Re: looking for a neat solution to a nested loop problem Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-08-07 01:27 +0000
  Re: looking for a neat solution to a nested loop problem Ian Foote <ian@feete.org> - 2012-08-06 17:07 +0100
  Re: looking for a neat solution to a nested loop problem Ethan Furman <ethan@stoneleaf.us> - 2012-08-06 09:15 -0700
  Re: looking for a neat solution to a nested loop problem Nobody <nobody@nowhere.com> - 2012-08-06 17:18 +0100
    Re: looking for a neat solution to a nested loop problem Tom P <werotizy@freent.dd> - 2012-08-06 19:14 +0200
      Re: looking for a neat solution to a nested loop problem Emile van Sebille <emile@fenx.com> - 2012-08-06 11:11 -0700
        Re: looking for a neat solution to a nested loop problem Larry Hudson <orgnut@yahoo.com> - 2012-08-06 21:02 -0700
          Re: looking for a neat solution to a nested loop problem Nobody <nobody@nowhere.com> - 2012-08-07 16:32 +0100
            Re: looking for a neat solution to a nested loop problem 88888 Dihedral <dihedral88888@googlemail.com> - 2012-08-07 18:42 -0700
            Re: looking for a neat solution to a nested loop problem 88888 Dihedral <dihedral88888@googlemail.com> - 2012-08-09 11:46 -0700
            Re: looking for a neat solution to a nested loop problem 88888 Dihedral <dihedral88888@googlemail.com> - 2012-08-09 11:39 -0700
            Re: looking for a neat solution to a nested loop problem 88888 Dihedral <dihedral88888@googlemail.com> - 2012-08-14 14:08 -0700
      Re: looking for a neat solution to a nested loop problem Grant Edwards <invalid@invalid.invalid> - 2012-08-06 18:25 +0000
        Re: looking for a neat solution to a nested loop problem Grant Edwards <invalid@invalid.invalid> - 2012-08-06 18:29 +0000
          Re: looking for a neat solution to a nested loop problem Tom P <werotizy@freent.dd> - 2012-08-06 21:03 +0200
            Re: looking for a neat solution to a nested loop problem Grant Edwards <invalid@invalid.invalid> - 2012-08-06 19:22 +0000
              Re: looking for a neat solution to a nested loop problem Emile van Sebille <emile@fenx.com> - 2012-08-06 12:52 -0700
  Re: looking for a neat solution to a nested loop problem André Malo <ndparker@gmail.com> - 2012-08-06 20:19 +0200
  Re: looking for a neat solution to a nested loop problem Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2012-08-06 15:31 -0400
  Re: looking for a neat solution to a nested loop problem Arnaud Delobelle <arnodel@gmail.com> - 2012-08-06 21:14 +0100

csiph-web