unredacter.py

import sys

def unredacter(unredacted_ip, ip):
    for i in range(len(unredacted_ip)):
        if unredacted_ip[i].isdigit() == True:
            ip.append(unredacted_ip[i])
        elif unredacted_ip[i] == ".":
            ip.append(unredacted_ip[i])
    cleaned_ip = "".join(ip)
    verify_format(cleaned_ip)

def verify_format(cleaned_ip):
    if cleaned_ip.count('.') == 3:
	ip_pieces = [ip_section for ip_section in cleaned_ip.split('.')]
	if len(ip_pieces) == 4:
	    for ip_section in ip_pieces:
		if not 0<= int(ip_section) <= 255:
		    print "Invalid ip address: " + cleaned_ip +" due to " + ip_section
		    return False
		    exit()
	    print "Valid IP Address: " + cleaned_ip
	else:
	    print "Invalid format #2 - Not enough numbers"
	    return False
    else:
	print "Invalid Format #1 - Not enough dots"
	return False


def main(argv):
    ip = []
    unredacted_ip = argv[1]
    unredacter(unredacted_ip, ip)


if __name__ == "__main__":
    main(sys.argv)