IP Address range to CIDR

ips2cidr.py

#!/usr/bin/env python3
# IP address range to CIDR
import sys
import ipaddress

if (len(sys.argv) - 1) != 2:
    print("Usage: ")
    print(f"  {sys.argv[0]} <ip address> <ip address>")
    print("Example: ")
    print(f"  {sys.argv[0]} 192.168.0.0 192.168.0.255")
    sys.exit(0)

ip1 = ipaddress.ip_address(sys.argv[1])
ip2 = ipaddress.ip_address(sys.argv[2])

for i in ipaddress.summarize_address_range(ip1, ip2):
    print(i)