[Boost-users] Re: [Python] Embedding and Extending problem

From: Vladimir Prus (ghost_at_[hidden])
Date: 2005-04-21 09:41:46

Keith MacDonald wrote:

> I've tried to merge the Boost.Python tutorials for embedding and extending
> (see below), to end up with an executable that does both.  The script
> fails to import "hello", so BOOST_PYTHON_MODULE is presumably not the
> correct way
> to do it.  What is?
> 
> Thanks,
> Keith MacDonald
> 
> 
> ====== The C++ code ======
> #include <boost/python.hpp>
> 
> using namespace boost::python;
> 
> char const* greet()
> {
>     return "hello, embedded world";
> }
> 
> BOOST_PYTHON_MODULE(hello)
> {
>     def("greet", greet);
> }
> 
> int main()
> {
>     Py_Initialize();
> 
>     object main_module((
>         handle<>(borrowed(PyImport_AddModule("__main__")))));
> 
>     object main_namespace = main_module.attr("__dict__");
> 
>     try {
>         handle<> ignored((PyRun_String(
>             "import hello\n"

I think you need something like:

 if (PyImport_AppendInittab("hello", init_hello) == -1)
        throw std::runtime_error("Failed to add embedded_hello to the
                         interpreter's builtin modules");

after Py_Initialize

- Volodya