Property in derived class

[Joseph Turian]

If I have a property in a derived class, it is difficult to override
the get and set functions: the property's function object had early
binding, whereas the overriden method was bound late.
This was previously discussed:
   http://groups.google.com/group/comp.lang.python/browse_thread/thread/e13a1bd46b858dc8/9d32049aad12e1c1?lnk=gst#9d32049aad12e1c1

Could someone demonstrate how to implement the proposed solutions that
allow the property to be declared in the abstract base class, and
refer to a get function which is only implemented in derived classes?

Thanks,
  Joseph