MIMEMultipart instance has no attribute 'as_bytes'
https://python-forum.io/thread-5589.html03.12.2018 · """ ##An email is composed of 3 part : #part 1: create the message container using a dictionary { to, from, subject } #part 2: attach the message_text with .attach() (could be plain and/or html) #part 3(optional): an attachment added with .attach() ## Part 1 message = MIMEMultipart() #when alternative: no attach, but only plain_text message['to'] = to message['from'] = sender …