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To: python-list@python.org
From: Dennis Lee Bieber <wlfraed@ix.netcom.com>
Subject: Re: cascading python executions only if return code is 0
Date: Mon, 23 Dec 2013 10:12:57 -0500
Organization: IISS Elusive Unicorn
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Xref: csiph.com comp.lang.python:62632

On Mon, 23 Dec 2013 13:33:08 +1100, Steven D'Aprano
<steve+comp.lang.python@pearwood.info> declaimed the following:

>Roy Smith wrote:
>
>
>>         else:
>>             assert 0, "can't create picker (classes = %s)" % classes
>
>ĦAy, caramba! I was with you until the very last line. The above code is
>possibly buggy and inappropriately designed. (I may be completely
>misinterpreting this, in which case feel free to ignore the following
>rant.)
>

	I'd think the biggest problem with this is that if one runs Python with
optimization turned on, the assert statement itself vanishes, leaving one
with an empty else clause...

	Try debugging that problem!
-- 
	Wulfraed                 Dennis Lee Bieber         AF6VN
    wlfraed@ix.netcom.com    HTTP://wlfraed.home.netcom.com/