[C++-sig] PyObject * self member in class wrappers.

[David Sankel]

When a python class is being inherited from a c++
class, one must write a c++ wrapper around the c++
class.

This wrapper must have a pointer to a PyObject called
self.

I was wondering, what exactly is this PyObject?

Say I have the following scenario:

class Cloneable
{
public:
  virtual Cloneable * Clone()=0;
};

class PythonCloneable
{
public:
  PyObject * self;
  PythonCloneable( PyObject * self_ ) : self(self_) {}

  Cloneable * Clone()
  {
     PythonCloneable * theCopy;
     //... What goes here?
     return theCopy;
  }
};

I would like Clone to return a copy (not instance) of
the original.  This way, both the clone and the
original could be modified independently.  How would I
manipulate the self member to do this?

Thanks,

David J. Sankel