I did something very similar when moving a big code base from python 2 to 3: https://kodare.net/2018/02/09/moving-a-large-and-old-codebase-to-python3.html https

I did something very similar when moving a big code base from python 2 to 3: https://kodare.net/2018/02/09/moving-a-large-and-old-codebase-to-python3.html https://kodare.net/2018/02/09/moving-a-large-and-old-codebas... Under the heading "experimental branch".