468. Validate IP Address - LeetCode Solution

class Solution:
    def validIPAddress(self, IP: str) -> str:
        def ipv4(ip):
            s=ip.split('.')
            if len(s)!=4:
                return False
            for e in s:
                try:
                    v=int(e)
                    if v>255 or e[0]=='-' or str(v)!=e:
                        return False
                except:
                    return False
            return True
        
        def ipv6(ip):
            s=ip.split(':')
            if len(s)!=8:
                return False
            
            for e in s:
                l=len(e)
                if l>4 or l==0:
                        return False
                try:
                    v=int(e,16)
                    if e[0] == '-':
                        return False
                    
                except:
                    return False
            return True
        
        ip=IP
               
        if '.' in ip and ipv4(ip):
            return 'IPv4'
        if ':' in ip and ipv6(ip):
            return 'IPv6'
            
        return 'Neither'