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!newsfeed1a.news.xs4all.nl!xs4all!post.news.xs4all.nl!not-for-mail
Return-Path: <cameron@cskk.homeip.net>
X-Original-To: python-list@python.org
Delivered-To: python-list@mail.python.org
X-Spam-Status: OK 0.023
X-Spam-Evidence: '*H*': 0.96; '*S*': 0.00; 'true,': 0.05; 'works.': 0.09; '>on': 0.16; 'from:addr:cs': 0.16; 'from:addr:zip.com.au': 0.16; 'from:name:cameron simpson': 0.16; 'message- id:@cskk.homeip.net': 0.16; 'op.': 0.16; 'pairs': 0.16; 'received:211.29': 0.16; 'received:211.29.132': 0.16; 'received:cskk.homeip.net': 0.16; 'received:homeip.net': 0.16; 'received:optusnet.com.au': 0.16; 'received:syd.optusnet.com.au': 0.16; 'simpson': 0.16; 'wrote:': 0.18; 'header:User-Agent:1': 0.23; 'cheers,': 0.24; 'header:In-Reply-To:1': 0.27; 'correct': 0.29; 'etc': 0.35; 'but': 0.35; 'received:com.au': 0.36; 'charset :us-ascii': 0.36; 'subject:?': 0.36; 'turn': 0.37; 'two': 0.37; 'received:211': 0.38; 'to:addr:python-list': 0.38; 'to:addr:python.org': 0.39; 'how': 0.40; 'skip:u 10': 0.60; 'content-disposition:inline': 0.62; 'side': 0.67; '>from': 0.68; 'on...': 0.68; 'bag': 0.74; 'honda': 0.84; 'teeth': 0.84; 'edwards': 0.91
Date: Tue, 11 Nov 2014 07:36:01 +1100
From: Cameron Simpson <cs@zip.com.au>
To: python-list@python.org
Subject: Re: What does zip mean?
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Disposition: inline
In-Reply-To: <m3qs33$n66$1@reader1.panix.com>
User-Agent: Mutt/1.5.23 (2014-03-12)
References: <m3qs33$n66$1@reader1.panix.com>
X-Optus-CM-Score: 0
X-Optus-CM-Analysis: v=2.1 cv=dMCfxopb c=1 sm=1 tr=0 a=YuQlxtEQCowy2cfE5kc7TA==:117 a=YuQlxtEQCowy2cfE5kc7TA==:17 a=ZtCCktOnAAAA:8 a=PO7r1zJSAAAA:8 a=J0QyKEt1u0cA:10 a=kj9zAlcOel0A:10 a=vrnE16BAAAAA:8 a=hobbS8L_JHNYhEIz2H8A:9 a=CjuIK1q_8ugA:10
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.15640.1415654042.18130.python-list@python.org>
Lines: 23
NNTP-Posting-Host: 2001:888:2000:d::a6
X-Trace: 1415654042 news.xs4all.nl 2889 [2001:888:2000:d::a6]:38473
X-Complaints-To: abuse@xs4all.nl
Xref: csiph.com comp.lang.python:80492

On 10Nov2014 17:19, Grant Edwards <invalid@invalid.invalid> wrote:
>On 2014-11-10, giacomo boffi <giacomo_boffi@inwind.it> wrote:
>> To help you understanding what is the `zip` builtin, please forget
>> about PKZip etc and think about the _zip fastener_ or _zipper_ in
>> your bag or in your trousers
>>
>> In the bag you have two sequences of teeth that the zipper
>> binds together in interlocking pairs
>
>No, you don't. That's not how a zipper works.  Each tooth from side A,
>isn't bound with one from side B.  It's bound with _two_ of them from
>side B. And each of those is in turn bound with an additional tooth
>from side A, and so on...

This is true, but the analogy is still the correct one:-)

Your nitpicking will not help the OP.

Cheers,
Cameron Simpson <cs@zip.com.au>

WFO: the normal throttle position for Denizens, squids, and unfortunates on
     50cc Honda step-throughs.