Pairwise circular Python 'for' loop

Question

Is there a nice Pythonic way to loop over a list, retuning a pair of elements? The last element should be paired with the first.

So for instance, if I have the list

Answer 1

from itertools import izip, chain, islice

itr = izip(l, chain(islice(l, 1, None), islice(l, 1)))

(As above with @j-f-sebastian's "zip" answer, but using itertools.)

NB: EDITED given helpful nudge from @200_success. previously was:

itr = izip(l, chain(l[1:], l[:1]))