Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!eweka.nl!lightspeed.eweka.nl!194.109.133.81.MISMATCH!newsfeed.xs4all.nl!newsfeed2.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.001 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'python.': 0.02; 'parameters': 0.04; '21,': 0.07; 'string': 0.09; '%s"': 0.09; 'friday,': 0.09; 'notes:': 0.09; 'skip:% 20': 0.09; 'undefined': 0.09; 'subject:question': 0.10; 'cc:addr:python-list': 0.11; 'python': 0.11; 'wrote': 0.14; '*from:': 0.16; '*subject:': 0.16; '*to:': 0.16; 'code?': 0.16; 'concatenate': 0.16; 'length,': 0.16; 'pep8': 0.16; 'spacing': 0.16; 'splitting': 0.16; 'terribly': 0.16; 'url:pep-0008': 0.16; 'url:peps': 0.16; 'appropriate': 0.16; 'wrote:': 0.18; 'written': 0.21; '(the': 0.22; 'settings': 0.22; 'email addr:gmail.com>': 0.22; 'rules': 0.22; 'cc:addr:python.org': 0.22; 'questions:': 0.24; 'url:dev': 0.24; 'question': 0.24; 'cc:2**0': 0.24; 'cc:no real name:2**0': 0.24; 'this:': 0.26; 'code:': 0.26; 'header:In-Reply-To:1': 0.27; 'message-id:@mail.gmail.com': 0.30; 'url:mailman': 0.30; 'code': 0.31; 'lines': 0.31; 'breaking': 0.31; 'concern': 0.31; 'ray': 0.31; 'skip:- 30': 0.32; 'text': 0.33; 'url:python': 0.33; 'becomes': 0.33; 'fri,': 0.33; 'style': 0.33; 'screen': 0.34; 'basic': 0.35; 'skip:s 30': 0.35; 'something': 0.35; 'received:google.com': 0.35; 'there': 0.35; 'really': 0.36; 'url:listinfo': 0.36; 'thanks': 0.36; "i'll": 0.36; 'hi,': 0.36; 'url:org': 0.36; 'example,': 0.37; 'so,': 0.37; 'two': 0.37; 'email addr:python.org': 0.37; 'level': 0.37; 'fact': 0.38; 'pm,': 0.38; 'little': 0.38; 'subject:': 0.39; '\xa0\xa0\xa0': 0.39; 'url:mail': 0.40; 'read': 0.60; 'break': 0.61; 'matter': 0.61; 'personal': 0.63; 'more': 0.64; 'email name:python-list': 0.65; 'within': 0.65; 'reply': 0.66; 'eyes': 0.78; 'everything.': 0.84; 'ok?': 0.84; '\xa0\xa0\xa0\xa0\xa0': 0.84; '2013': 0.98 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=fTQPWXkiO0xR+DwK+xa6OrYdbHFfkXgxw42SH7qHfSo=; b=po6eUtkpEhIO1N3Q/lcjEWUWRKkz/7ppVznBmOVZ7rqsOv8/bn8jw4XAW7G87+exR5 lv9mRVp9uzfCr3LIaV+jkiDJOFwYBt37ydx5KwPvE6S5VvI09+iap01NIvC5OJMWeesM iN6yeQ5Wyui8100TlD6DP8sJ3othIjNGktFOME7Lw7cMctxvDx7wak1b7TC1P4BBXeHA t7mfUqRKytxe30xV0ewXegF34g6uzJ5azNnB6oow+J3xFuz2o28q2YnLQjFqCqxi52ie q5n4D76EdPfftFeNcVoBAFRpBwi9u5aO3LWEeRHKx3/0XEKS32YaceWQfTcU3MR/seHx KXEg== MIME-Version: 1.0 X-Received: by 10.180.108.129 with SMTP id hk1mr105979wib.42.1371852058580; Fri, 21 Jun 2013 15:00:58 -0700 (PDT) In-Reply-To: <24094189.2779.1371851333304.JavaMail.rgacote@ip-225.appropriatesolutions.com> References: <24094189.2779.1371851333304.JavaMail.rgacote@ip-225.appropriatesolutions.com> Date: Fri, 21 Jun 2013 18:00:58 -0400 Subject: Re: n00b question on spacing From: "Yves S. Garret" To: Ray Cote Content-Type: multipart/alternative; boundary=e89a8f3bb04fa2de4304dfb132b4 Cc: python-list@python.org X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Newsgroups: comp.lang.python Message-ID: Lines: 177 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1371852066 news.xs4all.nl 15979 [2001:888:2000:d::a6]:42627 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:48886 --e89a8f3bb04fa2de4304dfb132b4 Content-Type: text/plain; charset=ISO-8859-1 On Fri, Jun 21, 2013 at 5:48 PM, Ray Cote wrote: > > ------------------------------ > > *From: *"Yves S. Garret" > *To: *python-list@python.org > *Sent: *Friday, June 21, 2013 5:17:28 PM > *Subject: *n00b question on spacing > > > Hi, I have a question about breaking up really long lines of code in > Python. > > I have the following line of code: > log.msg("Item wrote to MongoDB database %s/%s" %(settings['MONGODB_DB'], > settings['MONGODB_COLLECTION']), level=log.DEBUG, spider=spider) > > Given the fact that it goes off very far to the right on my screen is not > terribly > pleasing to my eyes (and can be rude for other developers). > > I was thinking of splitting it up like so: > log.msg("Item wrote to MongoDB database %s/%s" > %(settings['MONGODB_DB'], settings['MONGODB_COLLECTION']), > level=log.DEBUG, spider=spider) > > Is this ok? Are there any rules in Python when it comes to breaking up > long lines of > code? > > -- > http://mail.python.org/mailman/listinfo/python-list > > > Hi Yves: > PEP8 is your definitive guide for style questions: > > > and this is an interesting set of notes: > < > http://stackoverflow.com/questions/5931297/how-would-you-properly-break-this-line-to-match-pep8-rules > > > > > Basic rule is to break within parenthesis -- after that it becomes a > matter of personal taste/style. > > In your specific example, I would do something like: > log.msg( > "Item wrote to MongoDB database %s %s" % ( > > settings['MONGODB_DB'], > settings['MONGODB_COLLECTION]), > level=log.DEBUG, > spider=spider) > > Though you might want to: > a) start your string right after the log.msg( > b) put more than one settings on the same line > c) put the last two parameters on the same line. > > I find that once I start breaking up lines for length, that I prefer to > break up everything. > > Also remember when entering long lines of text that strings concatenate > within parenthesis. > So, > ("a, b, c" > "d, e, f" > "g, h, i") > > Is the same as ("a, b, cd, e, fg, h, i") > > --Ray > > -- > Ray Cote, President > Appropriate Solutions, Inc. > We Build Software > 603.924.6079 > Thanks for your reply Ray. My concern was that if I were to break with something like this: log.msg("Item written to MongoDB database %s/%s" %(settings['MONGODB_DB'], settings['MONGODB_COLLECTION']), level = log.DEBUG, spider = spider) I would get some undefined behaviour (the % is a little before the log.msg). I'll read the links that you provided in order to learn more. --e89a8f3bb04fa2de4304dfb132b4 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
On F= ri, Jun 21, 2013 at 5:48 PM, Ray Cote <rgacote@appropriates= olutions.com> wrote:

From: "Yves S. Garret" <yoursurrogategod@gmail.com>
T= o: python-l= ist@python.org
Sent: Friday, June 21, 2013 5:17:28 PM
Subject: n00b quest= ion on spacing


Hi, I have a question about breaking up really long lines of code in Pyth= on.

I have the following line of code:
log.msg("Item wrote to Mongo= DB database %s/%s" %(settings['MONGODB_DB'], settings['MON= GODB_COLLECTION']), level=3Dlog.DEBUG, spider=3Dspider)

Given the fact that it goes off very far to the right on my scree= n is not terribly
pleasing to my eyes (and can be rude for other develo= pers).

I was thinking of splitting it up like so:
log.msg(&= quot;Item wrote to MongoDB database %s/%s"
=A0 %(settings['MONGODB_DB'], settings['MONGODB_COLLECTION'= ]),
=A0 level=3Dlog.DEBUG, spider=3Dspider)

Is this ok?=A0 = Are there any rules in Python when it comes to breaking up long lines of code?

--
http://mail.python.org/mailman/listinfo/pytho= n-list

Hi Yves:
PEP8 is your definitive guide fo= r style questions:
=A0 <http://www.python.org/dev/peps/pep-0008/>

and this is an = interesting set of notes:
=A0 <http://stackoverflow.com/questions/5931297/how-would-you= -properly-break-this-line-to-match-pep8-rules>


Basic rule is to break within parenthesis -- after that it becomes = a matter of personal taste/style.

In your specific example, I would = do something like:
log.msg(
=A0=A0=A0 "Item wrote to MongoDB dat= abase %s %s" % (

settings['MONGODB_DB'],
settings['MONGOD= B_COLLECTION]),
level=3Dlog.DEBUG,
spider=3Dspider)

Though you might want to:
a) start your string right after the log.m= sg(
b) put more than one settings on the same line
c) put the last two param= eters on the same line.

I find that once I start breaking up lines f= or length, that I prefer to break up everything.

Also remember when= entering long lines of text that strings concatenate within parenthesis. So,
("a, b, c"
"d, e, f"
"g, h, i"= ;)

Is the same as ("a, b, cd, e, fg, h, i")

--Ray

--
Ray Cote, President
Appropriate Solu= tions, Inc.
We Build Software
603.924.6079
=

Thanks for your reply Ray.=A0 My concern was that if I were to break= with
something like this:
=A0=A0=A0=A0=A0 log.msg("Item written= to MongoDB database %s/%s"
=A0=A0=A0 %(settings['MONGODB_DB'], settings['MONGODB_COLLECTIO= N']),
=A0=A0=A0 level =3D log.DEBUG, spider =3D spider)

I would get some undefined behaviour (the % is = a little before the log.msg).

I'll read the links that you provi= ded in order to learn more.
--e89a8f3bb04fa2de4304dfb132b4--