MIME.py

import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
mail_content = 'This is a simple mail'

#The mail addresses and password
sender_address = 'sender123@gmail.com'
sender_pass = 'xxxxxxxx'
receiver_address = 'receiver567@gmail.com'

#Setup the MIME
message = MIMEMultipart()
message['From'] = sender_address
message['To'] = receiver_address
message['Subject'] = 'A test mail sent by Python. It has an attachment.'   #The subject line