Hi, I just installed Kicad 5.1.12 on a macOS 11.6.1 (Big Sur).
I am trying to run kidiff.
It looks like it is missing the PCBnew module, I am seeing the following message
ImportError: No module named pcbnew
This is the way I am loading this script.
/Applications/KiCad/kicad.app/Contents/Frameworks/Python.framework/Versions/Current/bin/python "${SCRIPTPATH}/plotPCB.py" "$@"
I am not sure if I am doing something wrong today, but this should work without issues.