1 from Tkinter import *

     2 

     3 # This program shows how to use the "after" function to make animation.

     4 

     5 class Test(Frame):

     6     def printit(self):

     7         print "hi"

     8 

     9     def createWidgets(self):

    10         self.QUIT = Button(self, text='QUIT', foreground='red',

    11                            command=self.quit)

    12         self.QUIT.pack(side=LEFT, fill=BOTH)

    13 

    14         self.draw = Canvas(self, width="5i", height="5i")

    15 

    16         # all of these work..

    17         self.draw.create_rectangle(0, 0, 10, 10, tags="thing", fill="blue")

    18         self.draw.pack(side=LEFT)

    19 

    20     def moveThing(self, *args):

    21         # move 1/10 of an inch every 1/10 sec (1" per second, smoothly)

    22         self.draw.move("thing", "0.01i", "0.01i")

    23         self.after(10, self.moveThing)

    24 

    25 

    26     def __init__(self, master=None):

    27         Frame.__init__(self, master)

    28         Pack.config(self)

    29         self.createWidgets()

    30         self.after(10, self.moveThing)

    31 

    32 

    33 test = Test()

    34 

    35 test.mainloop()