iterating over a list as if it were a circular list

[Sven]

I was wondering what the best approach for the following might be.

Say you have a list P of points and another list N of other items. You can
always assume that

len(N) <= len(P)

Now I would like to iterate over P and place one N at each point. However
if you run out of N I'd like to restart from N[0] and carry on until all
the points have been populated.
So far I've got

for point in points:

 

[Roy Smith]

I was wondering what the best approach for the following might be.

Say you have a list P of points and another list N of other items. You can
always assume that

len(N) <= len(P)

Now I would like to iterate over P and place one N at each point. However
if you run out of N I'd like to restart from N[0] and carry on until all
the points have been populated.
So far I've got

for point in points:

I'm not completely following what you're trying to do, but I think what
you're looking for is some combination of zip() and itertools.cycle().

pairs = zip(P, cycle(N))