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From: Neil Cerutti <neilc@norwich.edu>
Newsgroups: comp.lang.python
Subject: Re: First attempt at a Python prog (Chess)
Date: 19 Feb 2013 21:10:44 GMT
Organization: Norwich University
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On 2013-02-15, MRAB <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.

It is a more difficult to find bug in Python 2, which will not
even throw an exception, but instead silently do the wrong thing.

-- 
Neil Cerutti