0 == False but [] != False? - comp.lang.python

Message from discussion 0 == False but [] != False?

Steve Holden

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More options May 25 2007, 9:09 am

Newsgroups: comp.lang.python

From: Steve Holden <st...@holdenweb.com>

Date: Thu, 24 May 2007 19:09:09 -0400

Local: Fri, May 25 2007 9:09 am

Subject: Re: 0 == False but [] != False?

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Dan Bishop wrote:
> On May 24, 1:59 am, Tim Roberts <t...@probo.com> wrote:
> ...
>> False is just a constant. 0, (), '', [], and False are all constants that
>> happen to evaluate to a false value in a Boolean context, but they are not
>> all the same.

>> As a general rule, I've found code like "if x == False" to be a bad idea in
>> ANY language.

> I have a job as a C++ programmer, and they make us write it like that,
> apparently because the ! operator is hard to see. But "if (x ==
> TRUE)" is discouraged.

Find a new employer. I'm not joking.

regards
Steve
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