Sick to death of opening up `paint.exe` on windows server 2012 R2 because image viewer isn't installed and I'm using software that updates an on disk graph. So.. This..

show_refreshing_images.py

#!/usr/bin/env python3
import tkinter
from PIL import Image
from PIL import ImageTk
from time import sleep


root = tkinter.Tk()
root.geometry('+%d+%d' % (100,100))
root.wm_title("Self Refreshing Image Viewer")
label = tkinter.Label(root)
label.pack()
img = None
tkimg = [None]
delay = 500


def button_click_exit_mainloop (event):
    event.widget.quit()
    
def loopCapture():
    image = Image.open(r'/path/to/image.png')
    tkimg[0] = ImageTk.PhotoImage(image)
    label.config(image=tkimg[0])
    root.update_idletasks()
    root.after(delay, loopCapture)

loopCapture()
root.mainloop()

also, I don't need time.