Convert an IP string to a number and vice versa

Question

How would I use python to convert an IP address that comes as a str to a decimal number and vice versa?

For example, for the IP 186.99.109.000 &l

Answer 1

Here's one

def ipv4_to_int(ip):
    octets = ip.split('.')
    count = 0
    for i, octet in enumerate(octets):
        count += int(octet) << 8*(len(octets)-(i+1))
    return count