Tkinter Button widget

[Shankar Iyer (siyer@Princeton.EDU)]

Hi,

     I have another Tkinter-related question.  At the beginning of my program, a tkinter window is created with six buttons.  Each of these buttons is assigned a function that should be executed only when the button is pressed.  However, it seems that these functions are all executed once when the button widgets are first created.  Why is this the case and how do I prevent this from happening?

Shankar