Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > comp.lang.python > #11479

Re: Why no warnings when re-assigning builtin names?

Path csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!gegeweb.org!de-l.enfer-du-nord.net!feeder1.enfer-du-nord.net!newsfeed.eweka.nl!eweka.nl!feeder3.eweka.nl!newsfeed.xs4all.nl!newsfeed5.news.xs4all.nl!xs4all!post.news.xs4all.nl!not-for-mail
Return-Path <ethan@stoneleaf.us>
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; 'python,': 0.01; 'behavior.': 0.07; 'subject:when': 0.07; 'whichever': 0.07; 'python': 0.08; 'builtin': 0.09; 'coding.': 0.09; 'from:addr:ethan': 0.09; 'from:addr:stoneleaf.us': 0.09; 'from:name:ethan furman': 0.09; 'message-id:@stoneleaf.us': 0.09; 'received:gator410.hostgator.com': 0.09; '~ethan~': 0.09; 'handy': 0.16; 'received:72.11': 0.16; 'received:72.11.125': 0.16; 'received:72.11.125.166': 0.16; 'received:gateway01.websitewelcome.com': 0.16; 'subject:builtin': 0.16; 'written': 0.16; 'wrote:': 0.16; 'language,': 0.17; 'language': 0.17; '>>>': 0.18; 'seems': 0.20; 'header:In-Reply- To:1': 0.22; '(or': 0.23; 'mask': 0.23; 'code': 0.25; 'code.': 0.26; 'beyond': 0.28; 'depends': 0.28; 'programmers': 0.31; 'subject:?': 0.31; 'least': 0.31; 'third-party': 0.32; "can't": 0.33; 'there': 0.33; 'to:addr:python-list': 0.33; 'community': 0.34; 'header:User-Agent:1': 0.34; 'explicit': 0.34; 'starting': 0.36; 'doing': 0.36; 'skip:" 10': 0.36; 'but': 0.37; 'something': 0.37; 'especially': 0.37; 'two': 0.37; 'think': 0.38; 'subject:: ': 0.39; 'files,': 0.39; 'help': 0.39; 'basic': 0.39; "there's": 0.39; 'to:addr:python.org': 0.39; 'might': 0.40; 'one,': 0.40; 'thinking': 0.40; 'more': 0.60; 'easily': 0.61; 'received:websitewelcome.com': 0.64; 'received:184': 0.67; 'care': 0.71; 'received:69.56': 0.73; 'entertaining': 0.84; 'problematic': 0.84
Date Mon, 15 Aug 2011 16:12:07 -0700
From Ethan Furman <ethan@stoneleaf.us>
User-Agent Thunderbird 1.5.0.10 (Windows/20070221)
MIME-Version 1.0
To python-list@python.org
Subject Re: Why no warnings when re-assigning builtin names?
References <BB13E4C4D649234F84A01F6DF64BB87F076AD0CE@ccs-ex01.coldstorage.com> <mailman.23.1313446657.27778.python-list@python.org> <slrnj4j7lj.i7e.usenet-nospam@guild.seebs.net>
In-Reply-To <slrnj4j7lj.i7e.usenet-nospam@guild.seebs.net>
Content-Type text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding 7bit
X-AntiAbuse This header was added to track abuse, please include it with any abuse report
X-AntiAbuse Primary Hostname - gator410.hostgator.com
X-AntiAbuse Original Domain - python.org
X-AntiAbuse Originator/Caller UID/GID - [47 12] / [47 12]
X-AntiAbuse Sender Address Domain - stoneleaf.us
X-BWhitelist no
X-Source
X-Source-Args
X-Source-Dir
X-Source-Sender mail.admailinc.com ([192.168.10.136]) [72.11.125.166]:2860
X-Source-Auth ethan+stoneleaf.us
X-Email-Count 4
X-Source-Cap dG9idWs7dG9idWs7Z2F0b3I0MTAuaG9zdGdhdG9yLmNvbQ==
X-BeenThere python-list@python.org
X-Mailman-Version 2.1.12
Precedence list
List-Id General discussion list for the Python programming language <python-list.python.org>
List-Unsubscribe <http://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 <http://mail.python.org/mailman/listinfo/python-list>, <mailto:python-list-request@python.org?subject=subscribe>
Newsgroups comp.lang.python
Message-ID <mailman.25.1313448950.27778.python-list@python.org> (permalink)
Lines 28
NNTP-Posting-Host 2001:888:2000:d::a6
X-Trace 1313448950 news.xs4all.nl 23863 [2001:888:2000:d::a6]:33118
X-Complaints-To abuse@xs4all.nl
Xref x330-a1.tempe.blueboxinc.net comp.lang.python:11479

Show key headers only | View raw


Seebs wrote:
> On 2011-08-15, Ethan Furman <ethan@stoneleaf.us> wrote:
>> Gerrat Rickert wrote:
>>> What sayest the Python community about having an explicit warning 
>>> against such un-pythonic behaviour (re-assigning builtin names)?
> 
>> What makes you think this behavior is unpythonic?  Python is not about 
>> hand-holding.
> 
> It seems like something which is sufficiently likely to be a mistake might
> deserve a warning -- especially since, so far as I can tell, there's never
> going to be a program which can't easily be written to avoid the problematic
> behavior.

"sufficiently likely" depends entirely on who is doing the coding.  I 
use `open()` for opening my files, and so regularly use `file` as a 
name.  It can also be very handy to mask a built-in when doing something 
even more fun and entertaining and I, for one, have zero desire to have 
Python start warning me about perfectly legitimate code.

Programmers need to learn whichever language they are choosing to code 
in, and if extra help is needed beyond whatever is basic for that 
language, find (or write! ;) the third-party tool to help out.  There 
are at least two linters for Python, and multiple IDEs that can help 
with these, and other, problems.  (I don't much care for IDEs, but I am 
thinking of starting to use a linter, myself.)

~Ethan~

Back to comp.lang.python | Previous | NextPrevious in thread | Find similar | Unroll thread


Thread

Re: Why no warnings when re-assigning builtin names? Ethan Furman <ethan@stoneleaf.us> - 2011-08-15 15:34 -0700
  Re: Why no warnings when re-assigning builtin names? Seebs <usenet-nospam@seebs.net> - 2011-08-15 22:33 +0000
    Re: Why no warnings when re-assigning builtin names? Ethan Furman <ethan@stoneleaf.us> - 2011-08-15 16:12 -0700

csiph-web