[Tkinter-discuss] Callbacks to classes

[Bob van der Poel]

> Anyway, I've got a number of programs which suddenly stopped working.
> I think due to a change from python 2.6 to 2.7.
>
> I was setting up a menu call back to a Class with code like:
>
>    Button(bf, text=txt, height=1, command=cmd).grid(column=c, row=0, pady=5)
>
> when 'cmd' was a simple class name. Doesn't work anymore :)
>
> However, if I change cmd to a lambda it's find.

I got some help over in comp.python on this. Apparently there was a
change between 2.6 and 2.7. There are 3 easy solutions:

1. Use a function :)
2. Use lambda.
3. Use a new style class, ie:

      class mywindow(object)

I've tried all three and they all work. I'm not sure what the best method is.

Best to all.

-- 
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Bob van der Poel ** Wynndel, British Columbia, CANADA **
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