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From: Keith Thompson <Keith.S.Thompson+u@gmail.com>
Newsgroups: comp.unix.shell,comp.unix.programmer,comp.lang.misc
Subject: Re: Command Languages Versus Programming Languages
Date: Wed, 03 Apr 2024 09:00:25 -0700
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David Brown <david.brown@hesbynett.no> writes:
> On 03/04/2024 02:23, Lawrence D'Oliveiro wrote:
>> On 2 Apr 2024 08:26:14 GMT, Stefan Ram wrote:
>>
>>> ram@zedat.fu-berlin.de (Stefan Ram) wrote or quoted:
>>>
>>>> def diff( x ):
>>>> return 1 if x == 'x' else 0 if type( x )is str else[ 'sum', diff( x[
>>>> 1 ]), diff( x[ 2 ])]
>>>> if x[ 0 ]== 'sum' else None
>>>
>>> Oops! That was one long line starting with "return";
>>> it was wrapped by the newsreader, but is not correct Python anymore
>>> when wrapped this way.
>> It’s bloody horrible Python even when wrapped correctly. I think
>> Python’s version of the conditional expression is a complete
>> abortion.
>
> That's probably the reason almost no one uses it. That post is the
> first time I have ever seen conditional expressions outside of a brief
> mention in a tutorial on Python conditionals showing how to write
> normal conditionals in the language. I think Python stole this one
> from Perl.
No, Perl's conditional expressions use the same syntax as C's.
As for whether Python's conditional expression syntax, it's not clear
that (cond ? expr1 : expr2) is better or worse than (expr1 if cond else
expr2) (unless you happen to be familiar with one of them).
--
Keith Thompson (The_Other_Keith) Keith.S.Thompson+u@gmail.com
Working, but not speaking, for Medtronic
void Void(void) { Void(); } /* The recursive call of the void */