from Tkinter import *

# this file demonstrates the creation of widgets as part of a canvas object

class Test(Frame):
    def printhi(self):
	print "hi"

    def createWidgets(self):
	self.QUIT = Button(self, {'text': 'QUIT', 
				  'fg': 'red', 
				  'command': self.quit})
	self.QUIT.pack({'side': 'bottom', 'fill': 'both'})	

	self.draw = Canvas(self, {"width" : "5i", "height" : "5i"})

	self.button = Button(self, {"text" : "this is a button", 
				    "command" : self.printhi})

	# note here the coords are given in pixels (form the 
	# upper right and corner of the window, as usual for X) 
	# but might just have well been given in inches or points or
	# whatever...use the "anchor" option to control what point of the 
	# widget (in this case the button) gets mapped to the given x, y. 
	# you can specify corners, edges, center, etc...
	self.draw.create_window(300, 300, {"window" : self.button})

	self.draw.pack({'side': 'left'})



    def __init__(self, master=None):
	Frame.__init__(self, master)
	Pack.config(self)
	self.createWidgets()

test = Test()

test.mainloop()