Path: csiph.com!usenet.pasdenom.info!weretis.net!feeder1.news.weretis.net!feeder.erje.net!eu.feeder.erje.net!newsfeed.freenet.ag!news2.euro.net!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 0.027
X-Spam-Evidence: '*H*': 0.95; '*S*': 0.00; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'subject:create': 0.09; '"n"': 0.16; 'brackets,': 0.16; 'brackets:': 0.16; 'did.': 0.16; 'goebel': 0.16; 'patience': 0.16; 'received:80.91.229.3': 0.16; 'received:plane.gmane.org': 0.16; 'shorthand': 0.16; 'wrote:': 0.18; 'thu,': 0.19; 'url:home': 0.24; 'versions': 0.24; 'second': 0.26; 'header:X-Complaints-To:1': 0.27; 'didnt': 0.31; 'beginning': 0.33; 'subject:lists': 0.35; 'but': 0.35; '+0200,': 0.36; "didn't": 0.36; 'charset:us-ascii': 0.36; 'list': 0.37; 'thank': 0.38; 'to:addr:python-list': 0.38; 'pm,': 0.38; 'moving': 0.39; 'to:addr:python.org': 0.39; 'received:org': 0.40; 'expression': 0.60; 'first': 0.61; 'thomas': 0.65; 'miss': 0.74; 'square': 0.74; 'as:': 0.81; 'hand,': 0.93; 'received:108': 0.93; '2013': 0.98
X-Injected-Via-Gmane: http://gmane.org/
To: python-list@python.org
From: Dennis Lee Bieber <wlfraed@ix.netcom.com>
Subject: Re: use a loop to create lists
Date: Thu, 11 Apr 2013 18:17:32 -0400
Organization: > Bestiaria Support Staff <
References: <4c47da9e-c632-4855-98a7-0506d8013046@googlegroups.com> <51656F6A.5040103@th-nuernberg.de> <CAOjpqbPmjO1YS2N+931Q6+0NkHALnFocBydBtnhRxjHDf_d-DQ@mail.gmail.com> <5166A297.70104@th-nuernberg.de> <CAOjpqbM80RTXQsxgLJ9R_5X8uezWZQKcZ3F_fN8_vuq1D7_JoA@mail.gmail.com> <CAOjpqbMnZ_17iDj12qFqKU8sTEm7-QdYQAgi5T21R7k6kXFHgg@mail.gmail.com> <5166B345.8080200@th-nuernberg.de> <CAOjpqbOVME8dUXus9zBSLYCa+fJ8QsQYXd7sYw9RArfPHnHhKQ@mail.gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
X-Gmane-NNTP-Posting-Host: adsl-108-73-118-117.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: 2.1.15
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.492.1365718661.3114.python-list@python.org>
Lines: 33
NNTP-Posting-Host: 2001:888:2000:d::a6
X-Trace: 1365718661 news.xs4all.nl 2685 [2001:888:2000:d::a6]:49451
X-Complaints-To: abuse@xs4all.nl
Xref: csiph.com comp.lang.python:43404

On Thu, 11 Apr 2013 16:11:13 +0200, Franz Kelnreiter
<kelnreiter@gmail.com> declaimed the following in
gmane.comp.python.general:

> On Thu, Apr 11, 2013 at 2:57 PM, Thomas Goebel <
> Thomas.Goebel@ohm-hochschule.de> wrote:
> 
> > ...
> > Which is the same as:
> > f = {'list_' + str(n):[m for m in range(3)] for n in range(3)}
> >
> 
> Thomas, thank you for your patience and your long explanation! Now I
> understand better this shorthand expression of one single 'pythonic' ;)
> line.
> But didnt you miss square brackets:
> 
> f = {'list_' + str(n):[[m for m in range(3)] for n in range(3)]}
> 
	Without the second set of square brackets, the result is a generator
expression/comprehension -- which came in a few versions after list
comprehensions did.

	However, your position in locking the "n" inside the right hand, but
you need "n" on the left too...

	Try moving the first [ to the beginning -- {["list....

	(NO PROMISES -- I DIDN'T TEST}
-- 
	Wulfraed                 Dennis Lee Bieber         AF6VN
        wlfraed@ix.netcom.com    HTTP://wlfraed.home.netcom.com/