from tkinter import *
root = Tk()
root.title("Traffic Light")
root.resizable(False,False)
frame = Frame(root)
frame.pack()
canvas = Canvas(root, width=350, height=130, bg="white")
canvas.pack()
canvas.create_rectangle(3, 5, 350, 130, fill="black")

x=1
def move():
    global x
    if x==4:
        x=1
    if x==1:

        seoval_red = canvas.create_oval(10, 10, 110, 110, fill="red")
        oval_yellow = canvas.create_oval(120, 10, 220, 110, fill="black")
        oval_green = canvas.create_oval(230, 10, 330, 110, fill="black")


    elif x==2:
        oval_green = canvas.create_oval(230, 10, 330, 110, fill="green")
        seoval_red = canvas.create_oval(10, 10, 110, 110, fill="black")
        oval_yellow = canvas.create_oval(120, 10, 220, 110, fill="black")

    elif x == 3:

        oval_yellow = canvas.create_oval(120, 10, 220, 110, fill="yellow")
        seoval_red = canvas.create_oval(10, 10, 110, 110, fill="black")
        oval_green = canvas.create_oval(230, 10, 330, 110, fill="black")
    x+=1
    root.after(2000,move)
move()
root.mainloop()

# Colocar na Vertical

from tkinter import *

root = Tk()
root.title("Semáforo de Trânsito")
root.resizable(False, False)

frame = Frame(root)
frame.pack()

canvas = Canvas(root, width=150, height=400, bg="white")
canvas.pack()
canvas.create_rectangle(3, 5, 150, 400, fill="black")
x = 1
def move():
    global x
    if x == 4:
        x = 1
    canvas.delete("all")  # Limpa o canvas a cada atualização
    if x == 1:
        canvas.create_oval(10, 10, 110, 110, fill="red")
        canvas.create_oval(10, 130, 110, 230, fill="black")
        canvas.create_oval(10, 250, 110, 350, fill="black")
    elif x == 2:
        canvas.create_oval(10, 10, 110, 110, fill="black")
        canvas.create_oval(10, 130, 110, 230, fill="black")
        canvas.create_oval(10, 250, 110, 350, fill="green")
    elif x == 3:
        canvas.create_oval(10, 10, 110, 110, fill="black")
        canvas.create_oval(10, 130, 110, 230, fill="yellow")
        canvas.create_oval(10, 250, 110, 350, fill="black")
    x += 1
    root.after(2000, move)
move()
root.mainloop()