import smtplib

creates SMTP session

s = smtplib.SMTP('smtp.gmail.com', 587)

start TLS for security

s.starttls()

Authentication

s.login("sender_email_id", "sender_email_id_password")

message to be sent

message = "Message_you_need_to_send"

sending the mail

s.sendmail("sender_email_id", "receiver_email_id", message)

terminating the session

s.quit()

nice