I initiated discussion about moving python.org to using Buildbot 9
and Python 3: https://mail.python.org/pipermail/python-buildbots/2017-September/000133.html

Folks involved with core-workflow may want to monitor that thread, because
I believe it has implications on core developer workflow for Python.
Luckily, I think the implications are good. :)

Some of the implications I can think of include:

- buildbot 9 runs on Python 3, whereas the current buildbot 8 does not (and never will)
- buildbot 9 exposes a REST API with queryable endpoints
- buildbot 9 has better integration with GitHub pull requests, as can be seen here:
- buildbot 9 has better support for Docker, and providers who work with containers such as Hyper.sh