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

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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)