Why bool( object )?

[Lawrence D'Oliveiro]

In message <pan.2009.04.30.00.29.35 at REMOVE.THIS.cybersource.com.au>, Steven 
D'Aprano wrote:

> The reason why Lawrence's insistence is so badly wrong becomes more
> apparent if you look at what you can do with boolean contexts other than
> simple `if` tests. Compare:
> 
> 
> for x in a or b or c:
>     do_something_with(x)
> 
> 
> versus:
> 
> 
> if len(a) > 0:
>     temp = a
> elif len(b) > 0:
>     temp = b
> elif len(c) > 0:
>     temp = c
> for x in temp:
>     do_something_with(x)

I have never written anything so unbelievable in my life. And I hope I never 
will.