Iterating a sequence two items at a time

[Ulrich Eckhardt]

Hi!

I have a list [1,2,3,4,5,6] which I'd like to iterate as (1,2), (3,4),
(5,6). I can of course roll my own, but I was wondering if there was
already some existing library function that already does this.


def as_pairs(seq):
    i = iter(seq)
    yield (i.next(), i.next())

Question to this code: Is the order of the "i.next()" calls guaranteed to be
from left to right? Or could I end up with pairs being switched?

Thanks!

Uli

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