C++ to Python and returning members of a C++ object

I have a class library that has List objects as members of the class. If 
I use this class in a Python function and try to return one of these 
more complex members all hell breaks loose. It appears the SWIG 
generated wrapper returns a pointer to the objects member rather than 
making a copy of it when returning the member from the function.

So I have something like:

class TypeB {

public:

     List<TypeA> list1;

};

If in Python I have a function like the following, the returned item is 
effectively (SWIG wrapped) a pointer the b objects member and b 
disappears when the function returns.

def func1():

     b = TypeB();

     b.list1.append(TypeA());

     return b.list1;

Now I can use "return ListTypeA(b.list1)", where ListTypeA has been 
declared using a %template declaration such that the copy constructor is 
called to explicitly make a copy of the list, but is there a better way 
of handing this ?

I know this is difficult to handle, but perhaps something like a 
%template(return) to add code when returning a type in a Python function 
somehow or maybe the overall objects reference counter can be incremented ?



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