Ini file configurations raise some questions.

I've been reviewing the configurations in the INI files recently and have examined some open-source configuration files. I've noticed that some of these files contain configurations like this:

There are no specific instructions in the INI documentation regarding the [PYTHON] configuration, but these scripts are indeed invoked during the actual operation of LinuxCNC. I'd like to understand their operational logic and purpose.

It's for remap code:
linuxcnc.org/docs/2.9/html/remap/remap.html

for instance - look here under 'the python section'
linuxcnc.org/docs/2.9/html/gui/qtdragon....i_file_modifications