As I wrote in my previous "I love OpenStack workflow" email, I really like the Gerrit tool.
I have colleagues at Red Hat working on an integration of Gerrit, Zuul, Jenkins, Etherpad, etc. to easily deploy such setup (install but also update). The project is called "Software Factory" and it's a libre software: http://softwarefactory-project.io/docs/intro.html
It would allow us (Python) to own our data (reviews), rather than relying on a private provider like Gitlab (I don't know if Gitlab can be used completly freely on our own server).
I'm sure that my colleagues would love to help us to deploy a test setup for Python!
I don't know if we need all Software Factory tools: Gerrit, Redmine, Zuul, Jenkins, Nodepool, Etherpad, Pastebin. If we keep Round Up, we will have to write code to integrate Round Up with Gerrit. IMHO it's worth it :-)
By the way, I used Jenkins for different projects and different companies, and I prefer Jenkins over Buildbot. Its output (test result) is *much* better than Buildbot. It understands that some tests are unstable and identify them. I would also be a nice enhancement to modify our test suite to produce JUnit compatible output and get Jenkins reports. What do you think?
Ok, I sent 3 emails. It's maybe time for me to read all the backlog (archives of the mailing list, PEP 507, etc.) :-D