Re: Command Languages Versus Programming Languages

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 */