leetcode program to find out dominant index in a list

program3.py

class Solution:
    def dominantIndex(self, nums) -> int:
        m=max(nums)
        print(m)
        m_index=nums.index(m)
        for i in range(len(nums)):
            if(nums[i]==0 or nums[i]==m):
                pass
            elif(m//nums[i]<2):
                return -1
        else:
            return m_index
S=Solution()
m=S.dominantIndex([3,6,1,0])
print(m)