Meanwhile I came a bit further.
In qtgui there is a binding definition for QWidget. If I put the same
definition into my gr-display bindings, the error disappears. But now I
can't use my module together with the qtgui.
I can't import display together with qtgui as the secon import fails with
from .qtgui_python import *
ImportError: generic_type: type "QWidget" is already registered!
So how can I reuse the binding definition from gnuradio/qtgui inside my
oot module.
Any hints are appreciated.
-- Volker
