1. 2010-07-23 Re: [C++-sig] How to derive from an abstract base cla python-cp Lutz Maibaum 2. 2010-07-23 Re: [C++-sig] How to derive from an abstract base cla python-cp Jim Bosch 3. 2010-07-23 [C++-sig] How to derive from an abstract base class python-cp Lutz Maibaum