[Tutor] which gets called

[Mark Lawrence]

On 06/04/2012 14:54, John Fabiani wrote:
> Hi,
>
> I want to create a class that inherits two other classes.
>
> class NewClass( A,B)
>
> But both "A" and "B" contain a method with the same name ("onKeyDown").
>
> If my "NewClass" does not contain something to override the methods which one
> would be called if
>
> myinstance = NewClass()
>
> myinstance.onKeyDown()
>

Please see 
http://docs.python.org/tutorial/classes.html#multiple-inheritance.  This 
references http://www.python.org/download/releases/2.3/mro/  Having read 
these why not try typing code into the interactive prompt and see what 
happens?  Worst case you get an exception, if you don't understand it 
cut and paste it to a reply to this and we'll help out.

>
> Second to insure the right one is called is it possible to do the following
>
> NewClass(object):
>
>    def onKeyDown(self, event):
>        b.onKeyDown(event)

It's B.onKeyDown(self, event), without the self you'll get an unbound 
method error.

>
> Johnf
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-- 
Cheers.

Mark Lawrence.