Running accessing python .py program/file from within Retropie? Servo Servosix

[subz]

Pi Model: 3
RetroPie Version Used: 4.02
Built From: (Pre made SD Image on RetroPie website)
Controller used: Tht 2 player/ xin-mo 20 pin usb to jamma

Hello, I am building an upright arcade cabinet with the pi 3 and retropie.
I would like to auto-rotate the monitor with a servo depending on the games orientation.

My goal is to auto-rotate the screen depending on orientation from within retropie.

I would like to navigate to the servo.py python program from
/home/pi/RetroPie/roms/arcade/romname.zip.cfg

This .cfg is what i have used to rotate the pi picture 90 degrees per rom and I know retropie definatly 'reads' from this file as it loads the rom.

I have little /no programing expierience I know the redirect is possible but I dont know
how to get there.

I have the monk makes servo controller for raspberry pi
https://www.monkmakes.com/servo-kit/

If I quit out retropie with f4 I can control the servo by navigating to the files and running the python .py file/program.

Is it possible to open/run a .py file/program from within retropie and from the rom.zip.cfg file? then return to open the rom
Also when exiting a game i need retropie to read and run a reset to landscape .py file to correct the orientation of the menus/gameslist?
Im not sure where this should go?

I know theres many programs like mrotate that are pc based for the job, are there any that are compatible with the pi 3

Any advice will be appreciated
Thanks

[KPack]

I have the same issue. Did you find a solution?

[simonster]

You may be able to launch your python script from the runcommand-onstart script and reset it with the runcommand-onend script.

See: https://retropie.org.uk/docs/Runcommand/#runcommand-onstart-and-runcommand-onend-scripts