Path: csiph.com!usenet.pasdenom.info!gegeweb.org!de-l.enfer-du-nord.net!feeder2.enfer-du-nord.net!feeds.phibee-telecom.net!newsfeed.xs4all.nl!newsfeed3.news.xs4all.nl!xs4all!post.news.xs4all.nl!not-for-mail
MIME-Version: 1.0
Sender: z@etiol.net
In-Reply-To: <kpf4jc$spl$15@news.ntua.gr>
References: <2bc90d3b-09c2-4315-9357-ff7f039465e0@googlegroups.com> <kp9bcq$o1i$2@dont-email.me> <kp9d02$1jfb$1@news.ntua.gr> <mailman.3060.1371031686.3114.python-list@python.org> <kp9lcd$9l5$1@news.ntua.gr> <51b926a3$0$29997$c3e8da3$5496439d@news.astraweb.com> <kpbraq$qvk$6@news.ntua.gr> <mailman.3184.1371126194.3114.python-list@python.org> <kpckqb$28k2$3@news.ntua.gr> <51ba6e92$0$29997$c3e8da3$5496439d@news.astraweb.com> <kpeio7$p37$7@news.ntua.gr> <qot1u85gkpq.fsf@ruuvi.it.helsinki.fi> <kpel04$spl$2@news.ntua.gr> <qotobb9f3oy.fsf@ruuvi.it.helsinki.fi> <kpeomq$spl$6@news.ntua.gr> <qotmwqsq31b.fsf@ruuvi.it.helsinki.fi> <kpf4jc$spl$15@news.ntua.gr>
From: Zero Piraeus <schesis@gmail.com>
Date: Fri, 14 Jun 2013 09:48:09 -0400
Subject: Re: A certainl part of an if() structure never gets executed.
To: python-list@python.org
Content-Type: text/plain; charset=UTF-8
Precedence: list
Newsgroups: comp.lang.python
Message-ID: <mailman.3307.1371217712.3114.python-list@python.org>
Lines: 39
NNTP-Posting-Host: 2001:888:2000:d::a6
Xref: csiph.com comp.lang.python:48146

:

On 14 June 2013 09:07, Nick the Gr33k <support@superhost.gr> wrote:
>
> Thanks for explaining this but i cannot follow its logic at all.
> My mind is stuck trying to interpret it as an English sentence:
>
> if ('Parker' and 'May' and '2001')
>
> if ('Parker' or 'May' or '2001')
>
> i just don't get it and i feel silly about it.

You've been advised many times to experiment in the Python
interpreter. I may be mistaken, but I don't recall seeing any evidence
at all that you've ever done so.

Try the following in a Python interpreter:

>>> "vic" and "bob"
>>> "bob" and "vic"
>>> "vic" or "bob"
>>> "bob" or "vic"
>>> "vic" and ""
>>> "" and "bob"
>>> "bob" or ""
>>> "" or "vic"

Carefully study the results you get. This is simple, basic stuff;
don't come back here asking for explanations of it. If you get stuck,
*carefully* read this article:

  http://en.wikipedia.org/wiki/Short-circuit_evaluation

Repeat the steps above until you do understand. If all else fails,
google "short circuit logic" or "short circuit evaluation python" or
similar search terms, until you find a resource which you do follow.

 -[]z.