# Tk_non-parallel_pixels_500x500.py

# Tk_speed_of_graphics.py

from Tkinter import *
from PIL import Image, ImageTk
import random

root = Tk()
root.title("Speed of Graphics on 500x500 per Pixel")
root.geometry("500x500")
wi = 500
he = 500
w = Canvas(root, width=wi, height=he)
w.pack()

def data_process(y):
    xy.extend([(y/2,random.randrange(255),0) for x in range(wi)]) # set the color accordingly
#
img = Image.new( 'RGB', (wi,he))
while 1:
    xy = []
    for y in range(he):
        data_process(y)
    img.putdata(xy)
    imgTk = ImageTk.PhotoImage(img)
    w.create_image(0, 0, anchor=NW, image=imgTk)
    root.update()