I want to share a python trick with you, that I have found to be very useful. And since I want to also find out how to embed gists, I decided to use this post as a testing ground.

This is the easiest (only?) way to group items from an iterator.

Now if I were to use pygments for this snippet, it would look like this:

import itertools as it

def grouper(iterable, n, fillvalue=None):
    iters = (iter(iterable),) * n
    return it.izip_longest(n, fillvalue=fillvalue, *iters)

Which one looks better?