ipclean.py

ipclean.py

import itertools
import re

iplist = []

with open('level3.db.new') as myfile:
    for line in myfile.readlines():
        if line.startswith('member'):
            iplist.append(re.findall(r'[0-9]+(?:\.[0-9]+){3}(?:\/[0-9]+)', line))

ipclean = [ip for ip in iplist if ip]

merged = list(itertools.chain.from_iterable(ipclean))

with open('tmp.txt', 'w') as myfile:
    for ip in merged:
        myfile.write(ip + '\n')