from Tkinter import *

master = Tk() # create an empty frame (the 'master' frame)

w = Canvas(master, width=200, height=100) # create a canvas widget attached to master
                                          # http://effbot.org/tkinterbook/canvas.htm
w.pack() # make the canvas fill the master frame

w.create_line(0, 0, 200, 100) # draw some stuff
w.create_line(0, 100, 200, 0, fill="red", dash=(4, 4))

w.create_rectangle(50, 25, 150, 75, fill="blue")

mainloop() # start the event handling loop