Re: how to convert c++ objects to Python?

cavok@filibusta.crema.unimi.it writes:

hi,

i have a c++ function that returns a reference to a c++ object. i want to expose this function to Python making it return the Python version of the object. i'm using Boost.Python.

i understood that i have to use to_python_converter

Why do you think that? Your code should work find without it as written.

but the body of the A_to_Python::convert function is mystery for me. Boost documentation's example solves the problem in a manner i'm not able to apply to my case. my A object is complex and i'd like to somewhat (re)use the class_ object.

---------------- CUT HERE ---------------- #include

using namespace boost::python;

struct A { void f() {} };

A a;

struct A_to_Python { static PyObject* convert(const A& a) { // documentation says: // return PyObject_New(noddy_NoddyObject, &noddy_NoddyType); } };

A& get_A() { return a; }

BOOST_PYTHON_MODULE(hello) { class_<A>("A") .def("f", &A::f) ;

to_python_converter();

def("get_A", get_A, return_value_policy()); } ---------------- CUT HERE ----------------

please, somebody enlighten me.

many thanks domenico

-----[ Domenico Andreoli, aka cavok --[ http://filibusta.crema.unimi.it/~cavok/gpgkey.asc ---[ 3A0F 2F80 F79C 678A 8936 4FEE 0677 9033 A20E BC50

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