Verify IP Address Validity

is_valid_ipv4_address.py

import socket

def is_valid_ipv4_address(address):
    ''' Verify IP Address Validity '''

    try:
        socket.inet_pton(socket.AF_INET, address)
    except AttributeError:  # no inet_pton here, sorry
        try:
            socket.inet_aton(address)
        except socket.error:
            return False
        return address.count('.') == 3
    except socket.error:  # not a valid address
        return False

    return True