name : canvas-w-widget-draw-el.py 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', foreground='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()