Example of python executing terminal and console commands

As shown below:

import os
os.system()
os.popen().read().strip()

# Above 2 Methods   Yes python  Execution terminal / Console   Common methods of commands 
#os.system('ping www.baidu.com')  Successful execution   Return  0 
#ping = os.popen('pint www.baidu.com').read().strip()  Return the output result 
# Note: os.system()  Execution completion   Will close   So when performing the follow-up   Command needs to depend on the previous command, write multiple commands to the 1 A  os.system()  Inside 


# But   When this method is executed,   Is unable to interact with each other   For example   Insufficient command permissions   You need to enter a login password   You can use the following method 
import pexpect
ch = pepect.spwn(' Command ')
ch.expect('Password:')
ch.sendline(' Password ')