That said, one could open a new Issue/PR to change from python to python3 in the filetypes.python file and main.py templates and such.
No, it would have to change the default in the `<shudder>m4</shudder>` since this edits those files using the configured values. I'm just trying to save the effort of another PR as well, especially with a *release* coming we don't want the default to fail.