I'm trying to refactor parts of my project, particularly the Python/C++ interface. The standard boost::python python initialization was working before:
boost::python::object main_module = boost::python::import("__main__");
boost::python::object globals(main_module.attr("__dict__"));
//...
However, after factoring that into a class of its own, I'm getting
TypeError: No to_python (by-value) converter found for C++ type: boost::python::api::proxy<boost::python::api::attribute_policies>
When an instantiating a PyInterface object, as below:
namespace py = boost::python;
class PyInterface
{
private:
py::object
main_module,
global,
tmp;
//...
public:
PyInterface();
//...
};
PyInterface::PyInterface()
{
std::cout << "Initializing..." << std::endl;
Py_Initialize();
std::cout << "Accessing main module..." << std::endl;
main_module = py::import("__main__");
std::cout << "Retrieve global namespace..." << std::endl;
global(main_module.attr("__dict__"));
//...
}
//in test.cpp
int main()
{
PyInterface python;
//...
}
Running gives the following output:
Initializing...
Accessing main module...
Retrieving global namespace...
TypeError: No to_python (by-value) converter found for C++ type: boost::python::api::proxy<boost::python::api::attribute_policies>
The only thing I can think is that it has something to do with declaring "globals" before using it. In which case, is there another way that I can do this?
