[WIP]
These are just personal notes, probably not relevant to *you*.
I have an Ubuntu Bionic base VirtualBox instance that I clone to build other bionic instances.
Right now, I'm trying to get devstack running in a clone of that base. That failed with an error around not being able to do something with python simplejson. My current attempt to fix this is to purge the python3-simplejson package, unstack.sh and then run stack.sh again.