[Python-Dev] Conditional expressions and sequences

Paul Prescod paul@ActiveState.com
Tue, 16 Oct 2001 12:12:40 -0700


Skip Montanaro wrote:
> 
>...
> 
> Unfortunately, that requires both t and f to be evaluated.  

Perhaps not. What if the __where__ function was passed two callable
objects representing closures?

if x then y else z -> x.__where__(lambda: y, lambda: z)

I'm not saying I'm necessarily in favor of __where__. It is a kind of
innovative and I haven't thought through all of the issues.

 Paul Prescod