test.py

#!python3

from tkinter import *
tk = Tk()
tk.title("Triangle Movement")
tk.resizable(0, 0)
canvas = Canvas(tk, width=500, height=500)
canvas.pack()
tk.update()
current_image = PhotoImage(file='1.pnm')
image_id = canvas.create_image(5, 5, image=current_image, anchor=NW)
other_image = PhotoImage(file='2.pnm')
def movetriangle(event):
    if event.keysym == 'Up':
        print("Up")
        canvas.move(image_id, 0, -4)
    elif event.keysym == 'Down':
        print("Down")
        canvas.move(image_id, 0, 4)
        swap_images()
    elif event.keysym == 'Left':
        print("Left")
        canvas.move(image_id, -4, 0)
    elif event.keysym == 'Right':
        print("Right")
        canvas.move(image_id, 4, 0)
    elif event.keysym == 'w':
        print("w")
        canvas.move(2, 0, -4)
    elif event.keysym == 's':
        print("s")
        canvas.move(2, 0, 4)
    elif event.keysym == 'a':
        print("a")
        canvas.move(2, -4, 0)
    else:
        print("else")
        canvas.move(2, 4, 0)
canvas.bind_all('<KeyPress-Up>', movetriangle)
canvas.bind_all('<KeyPress-Down>', movetriangle)
canvas.bind_all('<KeyPress-Left>', movetriangle)
canvas.bind_all('<KeyPress-Right>', movetriangle)
canvas.bind_all('<KeyPress-w>', movetriangle)
canvas.bind_all('<KeyPress-s>', movetriangle)
canvas.bind_all('<KeyPress-a>', movetriangle)
canvas.bind_all('<KeyPress-d>', movetriangle)

def swap_images():
    global current_image, other_image, image_id
    x, y = canvas.coords(image_id)
    canvas.delete(image_id)
    image_id = canvas.create_image(x, y, image=other_image, anchor=NW)
    current_image, other_image = other_image, current_image

tk.mainloop()