Python Script: Generate a random password for a Linux user, change it and automatically send the new password on email periodically

Hello Friends,

Below script changes password of a linux user and sends the new password on mail. The name of user and all email are defined in the code itself. You have to enter the program in crontab for periodic change of password. e.g. 

*/30 * * * * /home/userpass.py      ( For changing password in every half hour, put this line in crontab )

Script:

#!/root/python/Python-3.3.0/python 
import string
import os
import random
import string
import smtplib

#user1=input('Enter the name of the user ')
user1='darklord'
pass1= ''.join(random.choice(string.ascii_lowercase + string.digits) for x in range(10))
cmd='echo -e "' + pass1 + '\n' + pass1 + '" | passwd ' + user1
if os.system(cmd)!= 0:
    print('Invalid User')
else:
    print('New password for user ' + user1 + ' is ' + pass1 )

#SMTP_SERVER = 'smtp.gmail.com'
#SMTP_PORT = 587
server = 'smtp.gmail.com'
port = 587

sender = 'myemail@gmail.com'
recipient = 'hisemail@laitkor.com'
subject = 'Change of Password'
body = 'New Password for user ' + user1 + ' is ' + pass1 
 
"Sends an e-mail to the specified recipient."
 
body = "" + body + ""
 
headers = ["From: " + sender,
           "Subject: " + subject,
           "To: " + recipient,
           "MIME-Version: 1.0",
           "Content-Type: text/html"]
headers = "\r\n".join(headers)
 
session = smtplib.SMTP(server, port)
 
session.ehlo()
session.starttls()
session.ehlo
session.login(sender, 'yourpassword')
 
session.sendmail(sender, recipient, headers + "\r\n\r\n" + body)
session.quit()