explode_subnet.py

#!/usr/bin/env python3

'''
Script to expand CIDR notation to a list of IP addresses.

'''
import ipaddress
import sys
hosts = set()
subnets = str(sys.argv[1]).split(',')
for network in subnets:
    try:
        for host in ipaddress.IPv4Network(network).hosts():
            hosts.add(host)
    except ValueError:
        for host in ipaddress.ip_interface(network).network.hosts():
            hosts.add(host)

for host in hosts:
    print(host)