Feature suggestion -- return if true

[Gregory Ewing]

Steven D'Aprano wrote:

> I'm sure you realise that that snippet needlessly recalculates any cached 
> result that happens to be false, but others reading might not.

I only use it as written when I'm dealing with types that
don't have false values. If I did need to cache such a
type, I would use a different test, such as 'if y is None'.

-- 
Greg