需要第三方库
pip install netaddr
import netaddr
print(netaddr.iprange_to_cidrs(‘192.168.100.100‘, ‘192.168.100.120‘))
[IPNetwork(‘192.168.100.100/30‘), IPNetwork(‘192.168.100.104/29‘), IPNetwork(‘192.168.100.112/29‘), IPNetwork(‘192.168.100.120/32‘)]
原文：https://www.cnblogs.com/zhangjinghua/p/15042179.html