Any rewrite is going to be superior to the old code (in any language). It sounds like the author just wanted to move it to Lua to me. I would only go with Lua

Any rewrite is going to be superior to the old code (in any language). It sounds like the author just wanted to move it to Lua to me. I would only go with Lua over Python if you needed something more embeddable. Like the game scripting usecase it's known for. The lost libraries and language features may make some things harder. I package up Python and my code, deploy it to other platforms all the time with under 5MB footprint in a single executable using PyInstaller. That said, it'll work out fine with Lua. My question would be who will maintain something years down the road. There's far more Python devs than Lua. The blog said he joined in 2014 so it may end up being someone else.