Your code calls mod four times on every number - and the same call twice to boot.

Two mods and one conditional in Python 2:

def fizzbuzz(count=100):
        fb_list = [ 0, 'fizz', 'buzz', 'fizzbuzz']

        for x in xrange(1, count+1):
                y = (not (x % 3)) + 2 * (not (x % 5))
                if not y:
                        print x
                else:
                        print fb_list[y]

It's easy to sit there and say you'd like to have more money. And I guess that's what I like about it. It's easy. Just sitting there, rocking back and forth, wanting that money. - Jack Handey

And Azimov.

I don't much about tigers, but I do know one thing - no tiger in the history of time has ever given a shit about 'dignity'. That's all you.