how to use image address in tkinter code example

Example 1: image tkinter

from tkinter import *      
root = Tk()      
canvas = Canvas(root, width = 300, height = 300)      
canvas.pack()      
img = PhotoImage(file="ball.ppm")      
canvas.create_image(20,20, anchor=NW, image=img)      
mainloop()

Example 2: tkinter load image

pip install pillow