Number of 1 bits - correct answer locally

Number of 1 bits excercise.
Could someone tell me what I'm doing wrong?
Input - 00000000000000000000000000001011
Your Answer - 2
Correct Answer - 3
Meanwhile when testing locally I'm getting the answer 3.

class Solution(object):
    def hammingWeight(self, n):
        """
        
        """
        output = 0
        y = list(str(n))
        for i in y:
            if i == "1":
                output+=1
        
        return output
                
Comments (1)