Dennis Lee Bieber wrote:
> On 27 Apr 2007 08:34:42 -0700, Paul McGuire <[EMAIL PROTECTED]>
> declaimed the following in comp.lang.python:
>
>
>>deficient - ternary expressions are now part of the language after
>>years of refugees from C and C++ asking how to write "a = b ? c : d",
>>and now they'll get to puzzle/gripe over mapping this to "a = c if b
>>else d". But as a newbie, you need to invest a little more time and
>
>
> And I'll probably ignore those expressions whenever I do get around
> to 2.5+... That syntax, in my mind, just... stinks...
ALGOL used "expression IF"; you could write
x := (IF a > b THEN a ELSE b);
but that doesn't map well to an indentation-based language.
A syntax suitable for Python, now that there's a bool type, might
be to define ".if()" for "bool". Then one could write
(a > b).if(a,b)
which is better than adding an operator.
Such things are useful in formatting expressions.
msg = 'Unit is %s' % (unitstatus.if("on","off"),)
but not really essential.
John Nagle
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