Tk windows in w2k IDLE don't close

[Matthew Wilson]

Hi -

I wrote this program:

import Tkinter

root = Tkinter.Tk()
root.title('tkfun is tktastic!')
cc = Tkinter.Canvas(root, width=400, height=400, bg="white")

for x in range(0,400,20):
    color = "#%x%x%x" % (x*12,x*12,x*12)
    rect = (x,x,x+20,x+20)
    cc.create_rectangle(rect, fill=color)

cc.pack()
root.mainloop()

I write all that in an idle window and then hit f5 to run it.  The window
pops up ok, but after I close it, I still don't get my python interactive
session back.  If I try to close that window, I get a message saying the
program is still running.  What am I doing wrong?

Thanks in advance.