[PyQt] Fwd: Mixin classes and PyQt4

[Hans-Peter Jansen]

On Montag, 10. Februar 2014 19:47:59 Baz Walter wrote:
> On 10/02/14 18:43, Phil Thompson wrote:
> > On 10-02-2014 6:16 pm, Baz Walter wrote:
> >> Why not simply:
> >> 
> >> class A(object):
> >>     def sizeHint(self):
> >>         print('mixed in!', self.parent())
> >>         return super().sizeHint()
> >> 
> >> class B(A, QLabel):
> >>     pass
> >> 
> >> class C(A, QLabel):
> >>     pass
> > 
> > That was my first reaction, but having to do...
> > 
> > class B(A, QLabel)
> > 
> > ...rather than...
> > 
> > class B(QLabel, A)
> > 
> > ...isn't nice.
> 
> What would be the point of the second one?
>
> The mixin would always need to go first for subclasses to benefit from
> the reimplemented sizeHint.

Of course. 

But writing it will hurt in the fingers and then sting the eyes..

Cheers,
  Pete
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