import telnetlib

import time

def tel_connect(file_name=None,host=None,port=23):

    tn=telnetlib.Telnet(host,port)

    tn.read_until(b"Password:")

    f=open(file_name)

    lines=f.readlines()

    for line in lines:

        tn.write((line+"\n").encode("utf-8"))

        time.sleep(1)

    print(tn.read_very_eager().decode("utf-8"))

    tn.close()

tel_connect("telnet.txt","10.98.249.12")