Python Tkinter Menu Command Not Working

Question

I am trying to execute the following code in Python 2.6.5. What I want to do is show a main window with an \'Applications\' menu. I want the menu to have a series of command

Answer 1

 appsMenu.add_command(label=app, command=openApp(Apps[app]))

Command parameters that call functions need to be wrapped in a lambda, to prevent them from being called right away. Additionally, commands bound within a for loop need the looping variable as a default argument, in order for it to bind the right value each time.

 appsMenu.add_command(label=app, command=lambda app=app: openApp(Apps[app]))