python recursive function

[cokofreedom at gmail.com]

> Stylistically I prefer 'if not n % 5', looks neater.
> As for your assignment, the hardest task will be creating an effective
> method of ensuring you recurse through all possibilities.

I was chatting to a friend about the 'if not n % 5' and while I am
happy to use it saying that when 5 % 5 is False because it returns
0...for this case just feels wrong to me.

I understand the reason to keep it this way...but still...having to
use not all the time is just annoying.