swappies.py

def count_swaps(nums):
    swaps = 0
    nn = [x for x in nums]
    l = len(nn)
    for i, j in zip(range(l - 2, -1, -1), range(l - 1, 0, -1)) * l:
        if nn[i] > nn[j]:
            nn[j], nn[i] = nn[i], nn[j]
            swaps += 1
    return swaps
print(count_swaps([1,2,3,4,5,6]))
print(count_swaps([1,5,3,4,6,2]))
print(count_swaps([6,5,4,3,2,1]))