import tkinter as tk


def allumer():
    canvas.itemconfig(ampoule_cercle, fill="yellow")


def eteindre():
    canvas.itemconfig(ampoule_cercle, fill="black")


fenetre = tk.Tk()
fenetre.title("Ampoule")


canvas = tk.Canvas(fenetre, width=400, height=400, bg="black")
canvas.pack()


ampoule_cercle = canvas.create_oval(150, 100, 250, 200, outline="white", fill="black")

canvas.create_rectangle(190, 200, 210, 300, fill="white", outline="white")



btn_allumer = tk.Button(fenetre, text="Allumer", command=allumer)
btn_allumer.pack(side="left", padx=20)

btn_eteindre = tk.Button(fenetre, text="Éteindre", command=eteindre)
btn_eteindre.pack(side="right", padx=20)