CIDR to IP range

cidr-to-range.py

import argparse
from netaddr import IPNetwork

arg_parser = argparse.ArgumentParser()
arg_parser.add_argument('filename', help='The filename of the file you need to convert')
args = arg_parser.parse_args()

src_filename = args.filename
output_filename = 'ip-range.txt'

with open(output_filename, 'w') as output:
    with open(src_filename, 'r') as f:
        for line in f:
            network = list(IPNetwork(line))
            start = network[0]
            end = network[-1]
            output.write(str(start)+'-'+str(end)+'\n')

Require dependency:

pip3 install netaddr