Defanging an IP Address (Leetcode 1108)

Problem Link: https://leetcode.com/problems/defanging-an-ip-address/

class Solution:
    def defangIPaddr(self, address: str) -> str:
        
        i=0
        while(i<len(address)):
            if(address[i]!='.'):
                i+=1
            else:
                address=address[:i]+'[.]'+address[i+1:]
                i+=3
        return address