oauth2 option

[sftcd]

We've been happily using this script (thanks for making it btw!) for weekly repo synopses for the IETF LAKE WG with the emails being sent from a gmail a/c. That's broken recently as gmail seemingly no longer accepts username/pwd authentication, at least as we've set it up. The error we're seeing is:

smtplib.SMTPAuthenticationError: (535, b'5.7.8 Username and Password not accepted. Learn more at\n5.7.8  https://support.google.com/mail/?p=BadCredentials 4-20020a1c1904000000b00xxxstuffxxx.14 - gsmtp')

Following that link (and a bit of searching) seems to imply that using oauth2 might work, so I'm wondering if anyone's done that already or plans to do it soonish?