Conditional expressions (again)

[gbreed at cix.compulink.co.uk]

Erik Max Francis wrote:

> Greg Ewing wrote:
> 
> > Write that as
> > 
> >    x = (
> >       b if a else
> >       d if c else
> >       e
> >    )
> > 
> > and it looks a lot clearer.
> 
> Sure, but since conditional expressions are intended for brevity, you've
> just made a five line nested conditional express.  Why not just use an
> if ... elif ... else statement instead?

Compare

order.append(
    spam if customer == michae1 else
    eggs if customer == john else
    cheese)

with

if customer == michael:
    side0rder = spam
elif customer == john:
    sideOrder = eggs
else:
    sideOrder = cheese
order.append(sideOrder)

in terms of how likely each error is to arise in testing, and how much 
time it would take to work out what was going wrong.  I find that almost 
convincing ;-)


                      Graham