Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!newsfeed.xs4all.nl!newsfeed2.news.xs4all.nl!xs4all!newsgate.cistron.nl!newsgate.news.xs4all.nl!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 0.027
X-Spam-Evidence: '*H*': 0.95; '*S*': 0.00; 'operator': 0.03; 'from:addr:ethan': 0.09; 'from:addr:stoneleaf.us': 0.09; 'from:name:ethan furman': 0.09; 'message-id:@stoneleaf.us': 0.09; 'subject:module': 0.09; 'unittest': 0.09; '~ethan~': 0.09; 'lambda': 0.16; 'readability': 0.16; 'wrote:': 0.18; 'wed,': 0.18; 'module': 0.19; '>>>': 0.22; 'header:User-Agent:1': 0.23; "aren't": 0.24; 'header:In-Reply-To:1': 0.27; 'point': 0.28; "i'm": 0.30; '>>>>': 0.31; 'convenience': 0.31; 'opposed': 0.36; 'to:addr:python-list': 0.38; 'pm,': 0.38; 'sure': 0.39; 'to:addr:python.org': 0.39; 'received:173': 0.61; 'simply': 0.61; 'back': 0.62; 'situation': 0.65; 'therefore': 0.72; '2014,': 0.84; 'ethan': 0.84; 'furman': 0.84; 'lol,': 0.84; 'mind:': 0.84; 'springs': 0.84
Date: Wed, 08 Oct 2014 14:49:00 -0700
From: Ethan Furman <ethan@stoneleaf.us>
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:16.0) Gecko/20121010 Thunderbird/16.0.1
MIME-Version: 1.0
To: Python <python-list@python.org>
Subject: Re: operator module functions
References: <54349662$0$12987$c3e8da3$5496439d@news.astraweb.com> <facda5ec-ecd9-43d0-99b3-b98f945a9a2d@googlegroups.com> <543518a5$0$12989$c3e8da3$5496439d@news.astraweb.com> <m1426b$kgq$1@ger.gmane.org> <543592AE.80807@stoneleaf.us> <1412797764.3704154.176743089.32D63D13@webmail.messagingengine.com> <54359623.8060307@stoneleaf.us> <1412803417.3733140.176776081.0B98584A@webmail.messagingengine.com>
In-Reply-To: <1412803417.3733140.176776081.0B98584A@webmail.messagingengine.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.14691.1412804943.18130.python-list@python.org>
Lines: 27
NNTP-Posting-Host: 2001:888:2000:d::a6
X-Trace: 1412804943 news.xs4all.nl 2885 [2001:888:2000:d::a6]:51353
X-Complaints-To: abuse@xs4all.nl
Xref: csiph.com comp.lang.python:78854

[redirecting back to the list]

On 10/08/2014 02:23 PM, random832@fastmail.us wrote:
> On Wed, Oct 8, 2014, at 15:53, Ethan Furman wrote:
>> On 10/08/2014 12:49 PM, random832@fastmail.us wrote:
>>> On Wed, Oct 8, 2014, at 15:38, Ethan Furman wrote:
>>>>
>>>> LOL, no kidding!  The main reason I bother using the operator module is
>>>> for the readability of not seeing the dunders,
>>>> and the writability of not having to type them.
>>>
>>> I'm not sure what situation you would have to type them (as opposed to
>>> simply a + b) that the operator module would help with.
>>
>> unittest springs to mind:
>>
>>     self.assertRaises(TypeError, op.add, obj1, obj2)
>
> Er, my point is, that is not a situation where you would be able to use
> obj1.__add__ - you'd have to use the operator module *anyway*, and
> therefore aren't using it just to get the convenience of a non-dunder
> name.

  self.assertRaises(TypeError, lambda x, y: x+y, obj1, obj2)

--
~Ethan~