Unable pass the proper row number to Menubutton command

[deanhystad]

You need to freeze the value of the passed argument, otherwise lambda tries to pull the variable from the current scope.

        for choice in drop_down:
            menu_items[row_pos][choice] = IntVar(value=0)
            menus[row_pos].add_checkbutton(label=choice, variable=menu_items[row_pos][choice],
                                 onvalue=1, offvalue=0,
                                 command=lambda x=row_pos:printValues(x))

You should also take a look at functools.partial. I find partial often works better than lambda for this sort of thing.