Hi all,
currently i am facing a problem regarding inheritance with boost::python
Here is a simple code snippet:
class Base
{
public:
virtual void print() { std::cout << "hello" << std::endl; }
};
class BaseWrapper : public Base, public wrapper<Base>
{
public:
BaseWrapper( PyObject *p ) : self(p) {}
BaseWrapper( PyObject *p, const Base &base) : Base(base), wrapper< Base
>(), self(p) {}
virtual void _print() { print(); }
private:
PyObject const *self;
};
class Derived : public Base
{
public:
Derived() {}
Derived( PyObject *p ) : self(p){}
private:
PyObject const *self;
};
BOOST_PYTHON_MODULE( my_module )
{
class_<Base, BaseWrapper>( "Base", init<>() )
.def("printIt", &BaseWrapper::_print)
;
class_<Derived, bases<Base> >( "Derived", init<>() );
}
And in python i want to have the following reslut:
>>import my_module
>> derived = my_module.Derived()
>> derived.printIt()
Actually this should print "hello" but instead throws an error saying:
derived.printIt()
Boost.Python.ArgumentError: Python argument types in
Base.printIt(Derived)
did not match C++ signature:
printIt(_Base {lvalue})
I tried a lot of modification but always getting this message.
Does somebody of you know what i am missing?
Thanks a lot in advance!
Best regards!
--
Erik Türke
Department of Neurophysics
Max-Planck-Institute for Human Cognitive and Brain Sciences
Stephanstrasse 1A
04103 Leipzig
Germany
Tel: +49 341 99 40-2440
Email: tue...@cbs.mpg.de
www.cbs.mpg.de
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