Re: [Boost-users] [python] converting C++ object to PyObject

Subject: Re: [Boost-users] [python] converting C++ object to PyObject
From: Ravi (lists_ravi_at_[hidden])
Date: 2011-08-08 00:21:12

On Friday, July 29, 2011 05:48:32 AM Johan Råde wrote:
> When I run the following code
> 
> C++:
> 
>      #include<boost/noncopyable.hpp>
>      #include<boost/python.hpp>
> 
>      using boost::noncopyable;
>      using namespace boost::python;
> 
>      class X : noncopyable {};
> 
>      PyObject* f()
>      {
>          return api::object(new X).ptr();
>      }
> 
>      BOOST_PYTHON_MODULE(Foo)
>      {
>          class_<X, noncopyable>("X");
>          def("f", &f);
>      }
> 
> Python:
> 
>      import Foo
>      Foo.f()
> 
> 
> then an exception, with the following error string, is thrown from the 
> api::object constructor:
> 
>      TypeError: No to_python (by-value) converter found for C++ type: 
> class X
> 
> Am I using api::object incorrectly, or should I not use api::object at 
> all but do something completely different?

As far as I can tell, the above should work. Could you please file a ticket on 
trac?

Ravi