Find Ip into subnet

ip.txt

192.168.1.1
192.168.2.3
192.168.2.130

subnet.txt

192.168.1.0/24
192.168.2.0/25
192.168.4.0/28

VerifyIp.py

#!/usr/bin/env python3

import ipaddress


### read ip from ip.txt
### check if there is a match in subnet files

ipfile=open("ip.txt")
for ip in [line[:-1] for line in ipfile]:
    found=0
    f=open("subnet.txt")
    for a in [line[:-1] for line in f]:
        if (ipaddress.ip_address(ip) in ipaddress.ip_network(a)):
            print("%s Found in %s"%(ip,a))
            found=1
            break
    if (found==0):
        print("%s not found"%ip)

    f.close()