Path: csiph.com!usenet.pasdenom.info!dedibox.gegeweb.org!gegeweb.eu!nntpfeed.proxad.net!proxad.net!feeder1-2.proxad.net!usenet-fr.net!nerim.net!novso.com!newsfeed.xs4all.nl!newsfeed1.news.xs4all.nl!xs4all!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 0.000
X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'operator': 0.03; 'win32': 0.03; 'syntax': 0.04; 'subject:Python': 0.06; 'indices': 0.07; 'received:80.91': 0.09; 'received:80.91.229': 0.09; 'received:gmane.org': 0.09; 'received:list': 0.09; 'way:': 0.09; 'python': 0.11; 'creates': 0.14; 'igor': 0.16; 'index.': 0.16; 'integers,': 0.16; 'itemgetter': 0.16; 'received:80.91.229.3': 0.16; 'received:dip0.t-ipconnect.de': 0.16; 'received:plane.gmane.org': 0.16; 'received:t-ipconnect.de': 0.16; 'sliced': 0.16; 'tuple': 0.16; 'tuple,': 0.16; 'typeerror:': 0.16; 'alpha': 0.16; 'elements': 0.16; 'wrote:': 0.18; 'variable': 0.18; 'bit': 0.19; 'split': 0.19; '>>>': 0.22; 'example': 0.22; 'import': 0.22; 'print': 0.22; 'creating': 0.23; 'header:User- Agent:1': 0.23; 'delta': 0.24; 'skip:" 20': 0.27; 'values': 0.27; 'header:X-Complaints-To:1': 0.27; '"",': 0.31; '>>>>': 0.31; 'perl': 0.31; 'file': 0.32; 'probably': 0.32; '(most': 0.33; 'test': 0.35; 'but': 0.35; 'picking': 0.36; 'doing': 0.36; 'subject:?': 0.36; 'list': 0.37; 'skip:o 20': 0.38; 'to:addr :python-list': 0.38; 'recent': 0.39; 'does': 0.39; 'to:addr:python.org': 0.39; 'received:org': 0.40; 'skip:n 10': 0.64; 'more': 0.64; '2013,': 0.91; 'why?': 0.91
X-Injected-Via-Gmane: http://gmane.org/
To: python-list@python.org
From: Peter Otten <__peter__@web.de>
Subject: Re: What's correct Python syntax?
Date: Tue, 14 Jan 2014 12:33:26 +0100
Organization: None
References: <mailman.5437.1389689219.18130.python-list@python.org> <cfd7f2f1-c8cb-4901-a6d7-630674ab20d4@googlegroups.com> <mailman.5439.1389691509.18130.python-list@python.org> <41a71031-be78-475f-bab2-822e35f909b7@googlegroups.com> <CA+FnnTxQ3kq_RWzAuDsaEXxPMmTWtYR_RMT-ShtzBRLKfrJ72w@mail.gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="ISO-8859-1"
Content-Transfer-Encoding: 7Bit
X-Gmane-NNTP-Posting-Host: p508498d1.dip0.t-ipconnect.de
User-Agent: KNode/4.7.3
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.5451.1389699222.18130.python-list@python.org>
Lines: 43
NNTP-Posting-Host: 2001:888:2000:d::a6
X-Trace: 1389699222 news.xs4all.nl 2930 [2001:888:2000:d::a6]:49309
X-Complaints-To: abuse@xs4all.nl
Xref: csiph.com comp.lang.python:63892

Igor Korot wrote:

> I am actually looking for a way to get a result from split which is
> sliced the way I want. Like in my example above.
> I mean I can probably make more variable by creating a tuple, but why?
> What is the purpose if I want only couple elements out of split.
> Doing it Perl way does not help:
> 
> C:\Documents and Settings\Igor.FORDANWORK\Desktop\winpdb>python
> Python 2.7.5 (default, May 15 2013, 22:43:36) [MSC v.1500 32 bit
> (Intel)] on win32
> Type "help", "copyright", "credits" or "license" for more information.
>>>> test = "I,like,my,chocolate"
>>>> print test.split(',')[2,3]
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> TypeError: list indices must be integers, not tuple
> 
> I can do it this way:
> 
>>>> testlist = test.split(',')
>>>> print testlist[2]
> my
> 
> but it will needlessly creates a list on which I will access by the index.
> 
> Why? All I need is couple of values out of n-dimensional list (array).

Python has no dedicated syntax for picking arbitrary items from a list 
If you are only concerned about printing use format():

>>> items = ["alpha", "beta", "gamma", "delta"]
>>> print "{1} {3} {0}".format(*items)
beta delta alpha

If you want to work with the values use operator.itemgetter():

>>> from operator import itemgetter
>>> itemgetter(1, 0, -1)(items)
('beta', 'alpha', 'delta')