TKinter Button widget

[J.Jacob]

Here is your code modified so it works.
As you can see 'lambda' is used.  Read more about it in the manuals
and books, have fun learning things about Tkinter, i did like it.

#!/usr/bin/python

from Tkinter import *

def printNumber(number):
	print number
	
win = Tk()
Button(win, text='print 3', command=lambda: printNumber(3)).pack()
Button(win, text='print 5', command=lambda: printNumber(5)).pack()
win.mainloop()