For a few years now, I've been working on an autonomous vehicle (https://github.com/gtagency/buzzmobile) that some friends and I hack on. We just recently hit what I'd call 1.0 in terms of a huge system refactor to make the entire system much more robust and testable.

I started working on this recently: https://github.com/joshuamorton/tut, and might go back to it. After seeing Kenneth Reitz's Pipenv I wanted to do something similar but a bit more extensive that included testing tools and some other stuff. And tut is the WIP result. Think Cargo for python.