Program to check valid IP addresses

Create a program that takes an IP address and print out the segment it contains.
Also, check if the format of the IP address is correct.

def validate_ip(ip):
    ln = ip.split('.')
    if len(ln) != 4:
        return False    for digit in ln:
        if not digit.isdigit():
            return False        i = int(digit)
        if i < 0 or i > 255:
            return False    return True
result = validate_ip(input("Please enter a IP address : "))
if result == True:
    print('Entered IP is correct')
else:
    print('Invalid IP')