Tkinter Button command query

[Fredrik Lundh]

Paul A. Wilson wrote:

> I'm new to Tkinter programming and am having trouble creating a
> reusable button bar... I want to be able to feed my class a dictionary
> of button names and function names, which the class will make.
>
> My button bar is implemented a Frame subclass, which takes the button
> dictionary as an argument and displays the buttons on the screen:
>
> class OptionsBar(Frame):
>    def __init__(self, buttonDict, parent=None)
>       Frame.__init__(self, parent)
>       parent.someFunction()    # This works fine
>       for (name, command) in buttonDict.items():
>          Button(self, text=name, command=command).pack(side=TOP,
> fill=BOTH)

Tkinter wants the functions, not the names of the functions.  you can use
getattr() to get around this:

    for (name, command) in buttonDict.items():
        command = getattr(parent, command)
        Button(self, text=name, command=command)...

(getattr(obj, "name") is the same as obj.name)

</F>