Both the Lua library and Luerl predate Pythonx. I started this library nearly 2 years ago, its only now that I'm releasing a stable version.
However, Pythonx was originally created by a member of our team, Cocoa, who built it in her own free time. The Livebook team forked her project, conceptually, and released it.
https://dashbit.co/blog/running-python-in-elixir-its-fine
It certainly is more attractive in implementation. Well done!