Monitor SSH access and send email when someone logins (python script)

log_access.py

#!/usr/bin/env python

import sys
import smtplib

smtp_port = 587
smtp_server = ""
smtp_user = ""
smtp_password = ""
sender_email = "noreply@myserver.com"
receiver_email = "youremail@domain.com"
message = """
Subject: SSH login to my server

"""

if len(sys.argv) == 0:
    sys.exit(0)

line = sys.argv[1].strip()

f = open('/var/log/logins.log','a')
f.write(line+"\n")
f.close()

message += line
server = smtplib.SMTP(smtp_server, smtp_port)
server.starttls()
server.login(smtp_user, smtp_password)
server.sendmail(sender_email, receiver_email, message)