subclassing an extension (non built-in) class / type in python 3.2

Hello everybody, I read in the extending and embedding documentation of python 3, that it is easily possible to subclass or subtype a built-in type. However, in my case, I would like to subclass a class, defined in a external python-file (py), which I can import in my C++-application and

Fwd: subclassing an extension (non built-in) class / type in python 3.2

Hello everybody, I read in the extending and embedding documentation of python 3, that it is easily possible to subclass or subtype a built-in type. However, in my case, I would like to subclass a class, defined in a external python-file (py), which I can import in my C++-application and