Packet Sniffer No Scapy Windows/Linux

import socket, re
def regexp(string):
    pattern="\d*\.\d*\.\d*\.\d*"
    regexp=re.compile(pattern)
    match=regexp.findall(string)
    return match
s = socket.socket(socket.AF_INET, socket.SOCK_RAW)
s.bind(("", 0))
while True:
    pkt = s.recvfrom(65535)
    print "[+] "+pkt[1][0]+" Lenght: "+str(len(pkt[0]))