Python learning for Network Engineers | Part 11 | devices lists explained

𝗙𝗼𝗿 𝗖𝗼𝗺𝗽𝗹𝗲𝘁𝗲 𝗣𝘆𝘁𝗵𝗼𝗻 𝗙𝗼𝗿 𝗡𝗲𝘁𝘄𝗼𝗿𝗸 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝘀 𝗖𝗼𝘂𝗿𝘀𝗲: 𝗘𝗻𝗿𝗼𝗹𝗹 𝗳𝗼𝗿 𝗯𝗲𝗹𝗼𝘄 𝗨𝗱𝗲𝗺𝘆 𝗖𝗹𝗮𝘀𝘀: 𝟐𝟎𝟐𝟐 𝐕𝐞𝐫𝐬𝐢𝐨𝐧 𝑫𝒊𝒔𝒄𝒐𝒖𝒏𝒕𝒆𝒅 𝑹𝒆𝒇𝒆𝒓𝒓𝒂𝒍 𝑳𝒊𝒏𝒌: https://www.udemy.com/course/python-for-network-engineers/?referralCode=35A75AAE1ACA94A15829 Lists are mutable objects: That means its value can be change after it is created Lists will be created in square brackets,values wil be separated using data import paramiko import time from getpass import getpass username = 'admin' password = 'admin' DEVICE_LIST =['10.10.10.' + str(n) for n in range(10,12)] for RTR in DEVICE_LIST: print ('\n #### Connecting to the device ' + RTR + '####\n' ) SESSION = paramiko.SSHClient() SESSION.set_missing_host_key_policy(paramiko.AutoAddPolicy()) SESSION.connect(RTR,port=22, username=username, password=password, look_for_keys=False, allow_agent=False) DEVICE_ACCESS = SESSION.invoke_shell() DEVICE_ACCESS.send(b'config t\n') for N in range (2,5): DEVICE_ACCESS.send('int lo ' +str(N) + '\n') DEVICE_ACCESS.send('ip address 1.1.1.' +str(N) + ' 255.255.255.255\n') time.sleep(3) DEVICE_ACCESS.send(b'do term length 0\n') DEVICE_ACCESS.send(b'do show ip int brief\n') time.sleep(3) output = DEVICE_ACCESS.recv(65000) print (output.decode('ascii')) SESSION.close DEVICE_LIST = ['10.10.10.10','10.10.10.11'] for RTR in DEVICE_LIST: print (RTR) DEVICE_LIST = ['10.10.10.'+ str(n) for n in range(10,15)] for RTR in DEVICE_LIST: print (RTR) python help() - topics help SEQUENCES - LISTS interface = ['Gi'+str(n) for n in range(2,5)] list comprehension Indexing DEVICE_LIST = ['10.10.10.10','10.10.10.11','R1'] print (DEVICE_LIST[0]) some of the operations type(devices) dir(devices) devices.append('SW4') DEVICE_LIST = ['10.10.10.10','10.10.10.11'] DEVICE_LIST = ['10.10.10.'+ str(n) for n in range(10,15)] for RTR in DEVICE_LIST: ip = "10.10.10." + str(n)