tn.write not working? - Printable Version +- Python Forum (https://python-forum.io) +-- Forum: Python Coding (https://python-forum.io/forum-7.html) +--- Forum: Networking (https://python-forum.io/forum-12.html) +--- Thread: tn.write not working? (/thread-14979.html) |
tn.write not working? - searching1 - Dec-28-2018 Hi, I have this program that access devices and change its hostname based from csv file but after entering the user/password script doesn't write any or seem like its tn.write is not running. While logs from device shows that the python script can access the device. Also no error when running this script. import csv import telnetlib import getpass import sys import time ##from prettytable import PrettyTable def main(): #open csv file, then put to variable csvfile. with open(input("Input the CSV filename: ")) as csvfile: riphostCSV = csv.reader(csvfile, delimiter=',') #Put the data as list from excel. ipaddress = [] nhostname = [] ## Menu = PrettyTable() ## Menu.field_names=['IPadd','Nhostname'] #Action - Put the data from excel to variable[list] for col in riphostCSV: ipadr = col[0] nhost = col[1] ipaddress.append(ipadr) nhostname.append(nhost) #List of devices from CSV file print("LIST OF DEVICES") for i in ipaddress: print(i, nhostname[ipaddress.index(i)]) dev = ipaddress print ("Host: ",dev) user = input("Enter your username: ") password=getpass.getpass("Enter Your Password Here: ") ## password = getpass.getpass() print ("Now accessing the devices " + i) dev = i.strip() tn = telnetlib.Telnet(dev) print("host:",dev) tn.read_until(b"Username:") tn.write(user.encode("ascii") + b"\n") if password: tn.read_until(b"Password: ") tn.write(password.encode("ascii") + b"\n") tn.read_until(b"#") tn.write(b"conf t \n") time.sleep(1) tn.write(b"hostname test33 \n") tn.write(b"exit \n") tn.write(b"wr mem \n") ## tn.close() ## break main()##### OUTPUT ###### Input the CSV filename: iphost.csv LIST OF DEVICES 192.168.137.50 lab-sw01 Host: ['192.168.137.50'] Enter your username: cisco Warning (from warnings module): File "C:\Users\GlobalNOC\AppData\Local\Programs\Python\Python37-32\lib\getpass.py", line 100 return fallback_getpass(prompt, stream) GetPassWarning: Can not control echo on the terminal. Warning: Password input may be echoed. Enter Your Password Here: cisco Now accessing the devices 192.168.137.50 host: 192.168.137.50 >>> Thanks |