#!/usr/bin/env pythonimport telnetlibimport timedef h3c_telnet(ip,username,password1,password2,type):    try:        tn = telnetlib.Telnet(ip,timeout=5)	time.sleep(1)	tn.write(username + '\r\n')	tn.read_until('Password:',timeout=5)	tn.write(password1 + '\r\n')	if password2 != 'null':	    tn.write('super\r\n')	    tn.write(password2 + '\r\n')	r1 = tn.read_very_eager()	filename = 'config/' + 'h3c.txt'	f = file(filename,'r')	commands = f.readlines()	for command in commands:	    tn.write(str(command) + '\r\n')	time.sleep(1)	alert = tn.read_very_eager()	tn.close()	#print alert    except Exception as e:	alert = ip + ' --> Login failed'	#	print alert	return alertif __name__ == '__main__':	ip = '10.170.63.100'	username = "test"	password1 = "test"	password2 = "null"	type = 'h3c'	h3c_telnet(ip,username,password1,password2,type)