[Python-ideas] if-statement in for-loop

[Random832]

On Tue, Oct 4, 2016, at 07:37, Nick Coghlan wrote:
> And when you add the "else" clause that's supported by both "for" and
> "if", what does that mean in the abbreviated form?
> 
>     for item in items if item is not None:
>         ...
>     else:
>         # ???
> 
> Or is the implicit proposal that this form be special cased to
> disallow the "else" clause?

I think it's obvious that it would be on the outermost construct (i.e.
the one that would still be at the same indentation level fully
expanded).

The *real* question is what "break" should do. I think it should
likewise break from the outermost for-loop (but "continue" should still
continue the innermost one), but this does mean that it's not
mechanically identical to the "equivalent" nested loops [it would,
however, make it mechanically identical to the "generator and single
loop" form]