CodeWarsKataStuff Just some CodeWars Solutions in Python. A nice example: def solve(a): return sum(isinstance(x, int) and [1, -1][x % 2] for x in a) or of course this is a nice one: for i in range(1, 101): print("Fizz"[(i%3)*4:] + "Buzz"[(i%5)*4:] or i)