[Python] can i updte text on tkinter without interacting with the ui? (using as a display only)

the project im working on needs a display monitor but needs to keep mouse and keyboard to a minimum.

(basically trying to make a cosplay prop. ideally it would use a mouse only just to start the program but after that would rely only on gpio inputs.)

it would switch between settings using buttons hooked up to gpio pins. so i would ideally have it check every so often to see if a button is pressed and then it will update what tkinter displays.

the problem is the only way i found for updating things after mainloop() is using buttons or other ui inputs. so, is there a way around this? or should i maybe look for something other than tkinter for this?

i looked online but couldnt find much help.

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