Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!newsfeed.xs4all.nl!newsfeed3.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 0.006
X-Spam-Evidence: '*H*': 0.99; '*S*': 0.00; 'subject:Python': 0.06; 'from:addr:ethan': 0.09; 'from:addr:stoneleaf.us': 0.09; 'from:name:ethan furman': 0.09; 'message-id:@stoneleaf.us': 0.09; 'received:184.172': 0.09; 'received:gator410.hostgator.com': 0.09; '~ethan~': 0.09; 'python': 0.11; 'inclined': 0.16; 'wrote:': 0.18; 'coding': 0.22; 'header:User-Agent:1': 0.23; 'issue,': 0.24; 'question': 0.24; 'long,': 0.26; 'subject:/': 0.26; 'header:In- Reply-To:1': 0.27; 'chris': 0.29; "i'm": 0.30; 'there.': 0.32; 'but': 0.35; 'really': 0.36; 'charset:us-ascii': 0.36; 'should': 0.36; 'so,': 0.37; 'to:addr:python-list': 0.38; 'pm,': 0.38; 'to:addr:python.org': 0.39; 'received:173': 0.61; "you're": 0.61; 'worth': 0.66; 'subject:long': 0.84; 'trouble.': 0.91
Date: Mon, 25 Mar 2013 16:16:05 -0700
From: Ethan Furman <ethan@stoneleaf.us>
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130106 Thunderbird/17.0.2
MIME-Version: 1.0
To: python-list@python.org
Subject: Re: Performance of int/long in Python 3
References: <CAPTjJmouUzXNr4Oq==LYB1UZ2UQb13Y6vTHGGzuzNXorNthjYg@mail.gmail.com>
In-Reply-To: <CAPTjJmouUzXNr4Oq==LYB1UZ2UQb13Y6vTHGGzuzNXorNthjYg@mail.gmail.com>
Content-Type: text/plain; charset=us-ascii; 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: ([173.12.184.235]) [173.12.184.235]:37788
X-Source-Auth: ethan+stoneleaf.us
X-Email-Count: 2
X-Source-Cap: dG9idWs7dG9idWs7Z2F0b3I0MTAuaG9zdGdhdG9yLmNvbQ==
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: <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.3705.1364253727.2939.python-list@python.org>
Lines: 10
NNTP-Posting-Host: 2001:888:2000:d::a6
X-Trace: 1364253727 news.xs4all.nl 6884 [2001:888:2000:d::a6]:51689
X-Complaints-To: abuse@xs4all.nl
Xref: csiph.com comp.lang.python:41836

On 03/25/2013 02:51 PM, Chris Angelico wrote:
> Python 3's int is faster than Python 2's long, but slower than Python
> 2's int. So the question really is, would a two-form representation be
> beneficial, and if so, is it worth the coding trouble?

I'm inclined to say it's not worth the trouble.  If you're working with numbers, and speed is an issue, you really 
should be using one of the numeric or scientific packages out there.

--
~Ethan~