[Python-3000] PEP: rename it.next() to it.__next__(), add a next() built-in

[Greg Ewing]

Georg Brandl wrote:

> Indeed, you almost always have to have a try-except StopIteration-
> wrapper around "manual" calls to .next().

An alternative way of addressing this would be to
have a new control structure. We already have the
'for' statement for when you want all the values;
why not another one for when you just want one
value? Maybe something like

   get item from iter:
     # code for when we got something
   else:
     # code for when we didn't get anything

--
Greg