# Write a Python program to find the type of IP Address using Regex # Python program to find the type of Ip address# re module provides support# for regular expressionsimport re# Make a regular expression# for validating an Ipv4ipv4 = '''^(25[0-5]|2[0-4][0-9]|[0-1]?[0-9][0-9]?)\.(            25[0-5]|2[0-4][0-9]|[0-1]?[0-9][0-9]?)\.(            25[0-5]|2[0-4][0-9]|[0-1]?[0-9][0-9]?)\.(            25[0-5]|2[0-4][0-9]|[0-1]?[0-9][0-9]?)$'''# Make a regular expression# for validating an Ipv6ipv6 = '''(([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|        ([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:)        {1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1        ,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}        :){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{        1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA        -F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a        -fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0        -9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]{0,        4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}        :){0,1}((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9        ])\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0        -9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]        |1{0,1}[0-9]){0,1}[0-9])\.){3,3}(25[0-5]|(2[0-4]        |1{0,1}[0-9]){0,1}[0-9]))'''# Define a function for finding# the type of Ip addressdef find(Ip):        # pass the regular expression    # and the string in search() method    if re.search(ipv4, Ip):        print("IPv4")    elif re.search(ipv6, Ip):        print("IPv6")    else:        print("Neither")# Driver Code if __name__ == '__main__' :            # Enter the Ip address    Ip = "192.0.2.126"           # calling run function     find(Ip)       Ip = "3001:0da8:75a3:0000:0000:8a2e:0370:7334"    find(Ip)       Ip = "36.12.08.20.52"    find(Ip)