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

Guido van Rossum guido at python.org
Tue Mar 6 19:20:41 CET 2007

On 3/5/07, Greg Ewing <greg.ewing at canterbury.ac.nz> wrote:
> Ka-Ping Yee wrote:
> >     Just like getattr, two-argument next(iter, sentinel)
> >     returns sentinel if StopException is caught.
> +1. I've written a number of pieces of code where this
> would have made things neater. Just about any place
> where I've used .next() explicitly, in fact -- it
> always seems awkward having to deal with StopIteration.


Also notice the (in some sense ironic) complementary symmetry with
iter(function, sentinel).

--Guido van Rossum (home page: http://www.python.org/~guido/)

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