send_mail.py

import os
import base64
from sendgrid import SendGridAPIClient
from sendgrid.helpers.mail import (Mail, Attachment, FileContent, FileName, FileType, Disposition)

change_url = f"https://github.com/{os.environ.get('GITHUB_REPOSITORY')}/commit/{os.environ.get('COMMIT_HASH')}"
message = Mail(
    from_email=os.environ.get('FROM_EMAIL'),
    to_emails=os.environ.get('TO_EMAIL'),
    subject='Site updated',
    html_content=f"""
    Content attached, changes can be found at <a href="{change_url}">{change_url}</a>
    """)

# https://www.twilio.com/blog/sending-email-attachments-with-twilio-sendgrid-python
with open('bbc-headlines.csv', 'rb') as f:
    data = f.read()
    f.close()

encoded_file = base64.b64encode(data).decode()

attachedFile = Attachment(
    FileContent(encoded_file),
    FileName('bbc-headlines.csv'),
    FileType('text/csv'),
    Disposition('attachment')
)
message.attachment = attachedFile

# Commenting this out because I actually don't want to get emails!
# But if you want to use it, just uncomment it (down to the print section)
# try:
#     sg = SendGridAPIClient(os.environ.get('SENDGRID_API_KEY'))
#     response = sg.send(message)
#     print(response.status_code)
#     print(response.body)
#     print(response.headers)
# except Exception as e:
#     print(e.message)