461_Hamming_Distance.py

class Solution(object):
    def hammingDistance(self, x, y):
        """
        :type x: int
        :type y: int
        :rtype: int
        """
        distance = 0
        while x or y:
            distance += (x % 2) ^ (y % 2)
            x = x // 2
            y = y // 2
        return distance