Re: Is there any advantage to using a main() in python scripts?

Path	csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!news.stack.nl!newsfeed.xs4all.nl!newsfeed4.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail
Return-Path	<bgailer@gmail.com>
X-Original-To	python-list@python.org
Delivered-To	python-list@mail.python.org
X-Spam-Status	OK 0.026
X-Spam-Evidence	'H': 0.95; 'S': 0.00; 'classes,': 0.05; 'importing': 0.05; 'subject:using': 0.09; 'modules,': 0.16; 'referencing': 0.16; 'stuff.': 0.16; 'subject:python': 0.16; 'wrote:': 0.18; 'header:User-Agent:1': 0.23; 'first,': 0.26; 'task': 0.26; 'header:In-Reply-To:1': 0.27; 'to:2**1': 0.27; 'am,': 0.29; 'actual': 0.34; 'classes': 0.35; 'received:google.com': 0.35; 'subject:?': 0.36; 'two': 0.37; 'message-id:@gmail.com': 0.38; 'to:addr:python-list': 0.38; 'to:addr:python.org': 0.39; 'to:addr:gmail.com': 0.65; 'subject:there': 0.68; 'add:': 0.84; 'me).': 0.84
DKIM-Signature	v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:subject:references :in-reply-to:content-type:content-transfer-encoding; bh=kivFLT2z6E2BOHa/IZz66h+a0lO1cgA2N1sJAiAeZ3o=; b=kbvEUCXNJMMVjH3I2eX2m9pyivG6k3Efj0NrG/ZRRiIqYFp5dicW/7ZdkbuwhmEKg0 7sGzjmBRfdUVwfuOPrrCeSC89uSCGkso1pd7S4dqGi2+wzK4QP8RpDOsApWn2dhp6xkI qgdzOuZGUTvweSyZ47Omlx1jTuXxMCq/7QfswV6JQwCxhnSMYFfdSh3V6eonwmPN5yiO Sl8JW6ji/e7csCd7RxCKAyav0U0yPDP7JxQakHen1/oN3mL/3jXJyMez3fvzjEv/fhxf HxmMAbdIdaMBm9UzKbYDlzOesLUA0W34Ri2eO44h0jVXY8UKaSa1rwWlmsWdUjAqLt+Z T+2w==
X-Received	by 10.224.171.70 with SMTP id g6mr3827427qaz.80.1386776547992; Wed, 11 Dec 2013 07:42:27 -0800 (PST)
Date	Wed, 11 Dec 2013 10:42:19 -0500
From	bob gailer <bgailer@gmail.com>
User-Agent	Mozilla/5.0 (Windows NT 6.3; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.1.1
MIME-Version	1.0
To	JL <lightaiyee@gmail.com>, python-list@python.org
Subject	Re: Is there any advantage to using a main() in python scripts?
References	<32615c9a-b983-4399-bb55-6df6c230f247@googlegroups.com>
In-Reply-To	<32615c9a-b983-4399-bb55-6df6c230f247@googlegroups.com>
Content-Type	text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding	7bit
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.3904.1386776551.18130.python-list@python.org> (permalink)
Lines	14
NNTP-Posting-Host	2001:888:2000:d::a6
X-Trace	1386776551 news.xs4all.nl 2958 [2001:888:2000:d::a6]:54991
X-Complaints-To	abuse@xs4all.nl
Xref	csiph.com comp.lang.python:61586

Show key headers only | View raw

On 12/11/2013 4:55 AM, JL wrote:
> What is the advantage to using a main()?
In addition to what's been said I add:

It separates all the global activities: defining of functions and 
classes, importing modules, etc. from the "doing" the actual task of the 
program.

It also ensures that the defining all the classes and functions happens 
before referencing them (less "bookkeeping" for me).

These two allow me to write the main program first, and follow it with 
all the global stuff.

Thread

Is there any advantage to using a main() in python scripts? JL <lightaiyee@gmail.com> - 2013-12-11 01:55 -0800
  Re: Is there any advantage to using a main() in python scripts? Ben Finney <ben+python@benfinney.id.au> - 2013-12-11 21:26 +1100
  Re: Is there any advantage to using a main() in python scripts? Chris Angelico <rosuav@gmail.com> - 2013-12-11 21:41 +1100
  Re: Is there any advantage to using a main() in python scripts? marduk@letterboxes.org - 2013-12-11 07:57 -0500
    Re: Is there any advantage to using a main() in python scripts? Roy Smith <roy@panix.com> - 2013-12-11 09:20 -0500
  Re: Is there any advantage to using a main() in python scripts? Roy Smith <roy@panix.com> - 2013-12-11 09:17 -0500
    Re: Is there any advantage to using a main() in python scripts? rusi <rustompmody@gmail.com> - 2013-12-11 06:24 -0800
  Re: Is there any advantage to using a main() in python scripts? bob gailer <bgailer@gmail.com> - 2013-12-11 10:42 -0500
  Re: Is there any advantage to using a main() in python scripts? Chris Angelico <rosuav@gmail.com> - 2013-12-12 02:49 +1100
  Re: Is there any advantage to using a main() in python scripts? Terry Reedy <tjreedy@udel.edu> - 2013-12-11 16:22 -0500

csiph-web