[Python-ideas] Control Flow - Never Executed Loop Body

[Vito De Tullio]

Andrew Barnert via Python-ideas wrote:

> More generally, I think if this feature were to be added, "empty" is a
> reasonable name. The idiomatic way to write it today is something like:
> 
>     elem = empty = object()
>     for elem in seq:
>         do_stuff(elem)
>     if elem is empty:
>         do_empty_seq_stuff()
> 
> So you're basically looking for syntactic sugar that abbreviated "if ...
> is empty:", right?

Maybe I'm missing something, but shoulnd't be like

    if seq:
        for elem in seq:
            do_stuff(elem)
    else:
        do_empty_seq_stuff()

a trivial code handling an empty list?




-- 
By ZeD