Complicated issue.

[David]

Hi, my name is David. I have a complicated problem, that I am sure has 
solution, but its hard to me to find one althoug I have half a week 
reading swig glue code and reading swig and python documentation.

I have a class A that is created in my C++ program. The class A has a 
referece to a class B. I have generated a shadow class in python, using 
swig, of the class B, so I can create an instance of class B from Python. 
Once I have the script, in my C++ program, I create an instance of class 
A, run the interpreter and execute the script, so I have also an instance 
of class B, but in Python (well, the "this" attribute has the pointer 
string representation to the C++ instance of class B as you already must 
know if you use swig ).

What I want is to assign this pointer to the reference of class A in 
order to acces from it within the code of A class.

But there is also the counterpart. I would like to call methods from C++ 
of the class B that are only implemented in python, for example if I make 
a subclass of class B named D with new methods only defined in D, it is 
legal to have an instance of D in the reference atribute of A, because it 
is just a subclass of B. So I will have to convert the C++ pointer to a 
Python Object that is the instance of the D or B class and then call the 
python method of the class.

Any ideas? It sounds complicated, I am sure it is, but maybe you can help 
me as I am sure you are more experienced. Thanks in advance.

David.


PD.- Sorry for my bad english.