import sys
import telnetlib

user ="teste"
password ="teste"

with open('ips.txt') as f:
    for line in f:
        HOST = line.strip()
        tn = telnetlib.Telnet(HOST)
        tn.read_until("Username: ")
        tn.write(user + "\n")
        tn.read_until("Password: ")
        tn.write(password + "\n")

        tn.write("enable\n")
        tn.write("cisco\n")
        tn.write(" conf t \n")
        tn.write(" hostname foda \n")
        tn.write("exit \n")

print("executado com sucesso")