Will RNB stay on Python 2.7 and if so, how long?
Link to a FAQ
Porting to Python 3 will require a substantial amount of work. Time is
scarce at the moment. Therefore, RedNotebook will probably stay on
Python 2.7 for the foreseeable future.
That's what I figured that you will say. Thank you!
Thanks Jendrik Seipp, that solved my question.