Send a pdf with an email with python

To send an attachment in an email you need to (take from here):

Create MIME
Add sender, receiver address into the MIME
Add the mail title into the MIME
Attach the body into the MIME
Open the file as binary mode, which is going to be attached with the mail
Read the byte stream and encode the attachment using base64 encoding scheme.
Add header for the attachments
Start the SMTP session with valid port number with proper security features.
Login to the system.
Send mail and exit

The modules

These are the modules needed

import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.mime.base import MIMEBase
from email import encoders

What’s a MIME?

The MIME (Multipurpose Internet Mail Extensions) is an Internet standard that extends the format of email messages to support text in character sets other than ASCII, as well as attachments of audio, video, images, and application programs.

The body of the email

body = '''Hello,
This is the body of the email
sicerely yours
G.G.
'''

Sender and receiver

sender = '[email protected]'
password = 'xxxxxxxx'
receiver = '[email protected]'

Let’s setup the MIME

#Setup the MIME
message = MIMEMultipart()
message['From'] = sender
message['To'] = receiver
message['Subject'] = 'This email has an attacment, a pdf file'

We attach the body (MIMEText)

message.attach(MIMEText(body, 'plain'))

Attach the pdf

pdfname = 'TP_python_prev.pdf'

# open the file in bynary
binary_pdf = open(pdfname, 'rb')

payload = MIMEBase('application', 'octate-stream', 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)

Create Smtp session to send email

#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 Sent')

The whole code

import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.mime.base import MIMEBase
from email import encoders

body = '''Hello,
This is the body of the email
sicerely yours
G.G.
'''
# put your email here
sender = '[email protected]'
# 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 = 'xxxxxxxxxxxxxxxxxxxxxxxx'
# put the email of the receiver here
receiver = '[email protected]'

#Setup the MIME
message = MIMEMultipart()
message['From'] = sender
message['To'] = receiver
message['Subject'] = 'This email has an attacment, a pdf file'

message.attach(MIMEText(body, 'plain'))

pdfname = 'es_full.pdf'

# 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 Sent')