sendmail.py

import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.mime.base import MIMEBase
from email import encoders
import os
 
body = '''Hello there! Welcome to the BODY of the email.'''

# put your email here
sender = 'youremail@example.com'

# get the password in the gmail (manage your google account, click on the avatar on the right)
# then go to security (right) and app password (center)
# insert the password and then choose mail and this computer and then generate
# copy the password generated here
password = input("Type your password and press enter: ")
# you can also hardcode your password but not recommended 
# password = 'ThisISmyPassWORD!'

# put the email of the receiver here
receiver = 'receiver@example.com'
 
#Setup the MIME
message = MIMEMultipart()
message['From'] = sender
message['To'] = receiver
message['Subject'] = 'I sent this using Python! You can too! Let\'s learn!'
 
message.attach(MIMEText(body, 'plain'))
 
pdfname = 'attach.pdf'
# you must ensure that the file is in the same folder as this script. Or, make sure you have the relative path :)
 
# open the file in bynary
binary_pdf = open(pdfname, 'rb')
 
payload = MIMEBase('application', 'octate-stream', Name=pdfname)
# payload = MIMEBase('application', 'pdf', Name=pdfname)
payload.set_payload((binary_pdf).read())
 
# enconding the binary into base64
encoders.encode_base64(payload)
 
# add header with pdf name
payload.add_header('Content-Decomposition', 'attachment', filename=pdfname)
message.attach(payload)
 
#use gmail with port
session = smtplib.SMTP('smtp.gmail.com', 587)
 
#enable security
session.starttls()
 
#login with mail_id and password
session.login(sender, password)
 
text = message.as_string()
session.sendmail(sender, receiver, text)
session.quit()
print('Mail has been Sent')