send-mail.py

mail_body = generate_mail_content("mail.html)
message = Mail(
        from_email=sender_email,
        to_emails=receiver_email,
        subject=subject,
        html_content=mail_body)

    try:
        sendgridAPIClientKey = os.getenv('SENDGRID_API_KEY')
        sg = SendGridAPIClient(sendgridAPIClientKey)
        response = sg.send(message)
        print(response.status_code)
    except Exception as e:
        print(e)
        print(e.body)
        print(e.message)
        print("failure !")