Learning Python Networking - Second Edition

Validating the IP address with the socket package

We can use also the socket package to validate an IP address in both IPv4 and IPv6.

You can find the following code in the check_ip_address.py file:

import socketdef is_valid_ipv4_address(address):    try:        socket.inet_pton(socket.AF_INET, address)    except AttributeError:        try:            socket.inet_aton(address)        except socket.error:            return False        return address.count('.') == 3    except socket.error:  # not a valid address        return False    return Truedef is_valid_ipv6_address(address):    try:        socket.inet_pton(socket.AF_INET6, address)    except socket.error:  # not a valid address        return False    return True print("IPV4 127.0.0.1 OK:"+ str(is_valid_ipv4_address("127.0.0.1")))print("IPV4 127.0.0.0.1 NOT OK:"+ str(is_valid_ipv4_address("127.0.0.0.1"))) ...