Thanks for the advice. Unfortunately, I can confirm that this is not the
problem.

Evan

On Fri, Jan 7, 2011 at 6:11 PM, Algis Kabaila <[email protected]> wrote:

> On Saturday 08 January 2011 10:21:25 Evan Patterson wrote:
> > Hello all,
> >
> > I've encountered what I suspect is a Shiboken bug, which the
> > following script demonstrates. I am hardly a metaclass
> > wizard, but I think this should work (at any rate, it does
> > under PyQt4). Strangely, creating a C does work, but
> > creating a D gives "RuntimeError: You can't initialize an
> > object twice!". Does anyone know what the problem is?
> >
> > Thanks,
> > Evan
> >
> > -------------------------------------------------
> > from PySide import QtGui
> >
> > class MetaA(type):
> >     pass
> > class A(object):
> >     __metaclass__ = MetaA
> >
> > MetaB = type(QtGui.QWidget)
> > B = QtGui.QWidget
> >
> > class MetaC(MetaA, MetaB):
> >     pass
> > class C(A, B):
> >     __metaclass__ = MetaC
> >
> > class D(C):
> >     pass
> >
> > app = QtGui.QApplication([])
> > #w = C() # works
> > w = D() # broken
> > w.show()
> > app.exec_()
> > -------------------------------------------------
>
> I do not know if any one really cares at this stage, but any
> QApplication can not be run twice in Idle. The second time Idle
> responds the QApplication is already running...  To compound the
> problem, sometimes Idle takes the app several times and
> invariably fails.
>
> Mind you, PyQt just kills Idle, at least in some version
> combinations.
>
> I have no idea if this is related to your findings, but it may
> well be.  My "work around" is not to use Idle and use Eric4;
> that is now possible since  QApplication now accepts unicode
> arguments  :)
>
> I want to reiterate that I am not an expert in any matters
> relating to PySide.  I am not even a programmer, though I
> learned to program before Computer Science was "invented"...
>
> Good luck to you!
>
> OldAl.
>
> --
> Algis
> http://akabaila.pcug.org.au
>
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