Is this a user error or something else?
Sorry video didn't attach.
Did you get it figured out? Don't need the "python" in the beginning just the pathname. it might also give you some weird permissions issues if you're on Ventura like it did for me so you just need to go to terminal and juggle the permissions on the file with a "chmod 0777 reverse_drive.py" in the files directory, or with the full pathname should work too. prusaslicer also needs permission to access the documents folder (which is where I put my script) and I was able to force that by updating my PS to the newest version and also going into my Mac system settings -> privacy -> full disk access -> turning on PS. FINALLY I had to change the script a little bit to get it to work, and had to run it with python 3 not 2 so that's an easy fix if you start getting python errors (had to change the top line to /usr/bin/python3 or whatever it was before (the 3 is what's important)). here was my prusa forum post https://forum.prusa3d.com/forum/prusaslicer/permission-denied-when-attempting-to-load-post-processing-script-on-macos-ventura-13-2-1/
ok thank you for the link, maybe it would be easier to just use an old windows machine.