Path: csiph.com!usenet.pasdenom.info!aioe.org!news.stack.nl!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 0.011 X-Spam-Evidence: '*H*': 0.98; '*S*': 0.00; 'exception': 0.03; 'subject:Python': 0.05; 'mrab': 0.05; 'none:': 0.05; 'python': 0.09; 'benjamin': 0.16; 'comparison.': 0.16; 'wrote:': 0.17; '>>>': 0.18; 'feb': 0.19; 'email addr:gmail.com>': 0.20; 'to:name:python-list@python.org': 0.20; '>': 0.23; '15,': 0.23; 'header:In-Reply-To:1': 0.25; 'am,': 0.27; 'message- id:@mail.gmail.com': 0.27; 'always,': 0.29; 'url:mailman': 0.29; 'fri,': 0.30; 'url:python': 0.32; 'url:listinfo': 0.32; 'to:addr :python-list': 0.33; 'received:google.com': 0.34; 'received:209.85': 0.35; 'url:org': 0.36; 'subject: (': 0.36; 'received:209': 0.37; 'subject:: ': 0.38; 'to:addr:python.org': 0.39; 'received:209.85.214': 0.39; 'url:mail': 0.40; 'first': 0.61; 'subject:First': 0.65; 'score': 0.75; '2013': 0.84; 'neil': 0.84; 'oscar': 0.84 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-received:mime-version:in-reply-to:references:from:date:message-id :subject:to:content-type; bh=JfaVIDv7nn1jlcx+Kf/YJcKV2BKGx1wtxHLb/63D4HI=; b=Afv0FChw3lAqWe6J0Mrc44NcQveBqqZCpUK44tpxM+rB/BVSTeQit7QNQ5Pr7GE5Zg gwWl32qvpOQyYr8cReMV5fkiQPGG8CboYys/TVW0bjhnVZ3vxkbsoHdM9CSQ3L8mZ57S HgAqDIwdqOsaMekO24E9sW79LEReQevfZzH/gdQ5gmETzDA8sQ4TjhCzobutZdvJ6Dum xlNakMSY03taFpC+vUKh2LBoqD0rx6/BPz/N8KPMJ6s4Qa+5gPqNPMZT2/YH6n3+QMIB QiWlZlgELXZoEzV1avW5eIWCP5VBFNn3LpkfM5PX5na2e7frjl9nkCVpGHAR5n7myOsG sYJw== X-Received: by 10.60.10.3 with SMTP id e3mr2394279oeb.51.1360951409144; Fri, 15 Feb 2013 10:03:29 -0800 (PST) MIME-Version: 1.0 In-Reply-To: <511E75DA.6040508@mrabarnett.plus.com> References: <2013021323250974803-chrishinsley@gmailcom> <511E75DA.6040508@mrabarnett.plus.com> From: Matt Jones Date: Fri, 15 Feb 2013 12:03:08 -0600 Subject: Re: First attempt at a Python prog (Chess) To: "python-list@python.org" Content-Type: multipart/alternative; boundary=e89a8fb1ed044c74b404d5c7317e 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: 84 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1360951412 news.xs4all.nl 6974 [2001:888:2000:d::a6]:43037 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:38941 --e89a8fb1ed044c74b404d5c7317e Content-Type: text/plain; charset=ISO-8859-1 "Only in Python 3." Use best practices always, not just when you have to. *Matt Jones* On Fri, Feb 15, 2013 at 11:52 AM, MRAB wrote: > On 2013-02-15 16:17, Neil Cerutti wrote: > >> On 2013-02-15, Oscar Benjamin wrote: >> >>> if score > best_score or best_score is None: >>> >> >> You need the None check first to avoid an exception from the >> comparison. >> >> Only in Python 3. > > > if best_score is None or score > best_score: >> >> > -- > http://mail.python.org/**mailman/listinfo/python-list > --e89a8fb1ed044c74b404d5c7317e Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
"Only in Python 3."= ;

Use best practices always, not just when y= ou have to.

=
Matt Jones


On Fri, Feb 15, 2013 at 11:52 AM, MRAB <= span dir=3D"ltr"><python@mrabarnett.plus.com> wrote:
On 2013-02-15 16:17, Neil Cerutti wrote:
On 2013-02-15, Oscar Benjamin <oscar.j.benjamin@gmail.com> wrote:
if score > best_score or best_score is None:

You need the None check first to avoid an exception from the
comparison.

Only in Python 3.


if best_score is None or score > best_score:


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