gpiozero tkinter

from tkinter import Tk, Button, Label

# zum Testen
from gpiozero.pins.mock import MockFactory

# Button ist schon einmal importiert worden
# deswegen der Import mit einem anderen Namen
from gpiozero import Button as GPIO_Button


class GUI(Tk):
    def __init__(self, inputs):
        super().__init__()
        self.inputs = inputs
        self.labels = {}
        self.setup()

    def setup(self):
        for name, gpio_obj in self.inputs.items():
            gpio_obj.when_pressed = lambda: self.on(name)
            gpio_obj.when_released = lambda: self.off(name)
            if gpio_obj.value:
                color = "green"
            else:
                color = "red"
            label = Label(self, text=name, bg=color)
            self.labels[name] = label
            label.pack()
        Button(self, text="Beenden", command=self.destroy).pack()

    def on(self, name):
        label = self.labels[name]
        label["bg"] = "green"

    def off(self, name):
        label = self.labels[name]
        label["bg"] = "red"


if __name__ == "__main__":
    factory = MockFactory()
    inputs = {
        "GPIO 17": GPIO_Button(17, pin_factory=factory),
        "GPIO 20": GPIO_Button(20, pin_factory=factory),
    }
    app = GUI(inputs)
    app.mainloop()