So I've run into the first snag with my workaround of installing python 3.7 as an alternative to python 3 (3.54)

I can no longer use the revpipyloader to auto start and monitor my script. Your parameter for the python interpreter pythonversion cannot be set to 3.7 or the service will not run. It ...

What an honor to receive a reply from the world renown Dirk. Famous from such wonderful cinematic masterpieces as "RevPi Tutorial 08 – Digital IO Modules"

So what happens when I try to upgrade Python 3 as you did:

pi@RevPi43323:~ $ sudo apt install python3
Reading package lists... Done
Building ...

I'm trying to port a system over from a Raspberry Pi 4B development platform to a Rev Pi Connect module running Stretch. I understand Stretch comes pre-bundled with Python 3.5.3, however one of my very important modules requires python 3.6 or higher.

Is there an approved procedure to upgrade python ...