# Tk_truchet.py

# Tk_truchet.py

import random
import time

try:
    from Tkinter import *
except:
    from tkinter import *

root=Tk()
root.title("Tk_truchet")

ww=1200
hh=640

root.geometry("%dx%d+0+0"%(ww,hh))
canvas = Canvas(root, width=ww,height=hh)
canvas.pack()

while 1:
    wait = time.time()+2
    canvas.delete('all')
    for y in range(0,hh,20):
        for x in range (0,ww,20):
            rnd = random.randint(0,1)
            if rnd:
                canvas.create_arc(x-10, y+10, x+10, y+30, start=0, style=ARC, width=2, extent=90)
                canvas.create_arc(x+10, y-10, x+30, y+10, start=180, style=ARC, width=2, extent=90)
            else:
                canvas.create_arc(x+10, y+10, x+30, y+30, start=90, style=ARC, width=2, extent=90)
                canvas.create_arc(x-10, y-10, x+10, y+10, start=270, style=ARC, width=2, extent=90)
    while wait > time.time():
        canvas.update()