[boost] Re: Boost.Python embedding/extending example

From: David Abrahams (dave_at_[hidden])
Date: 2005-05-11 08:19:11

Neb Naic <niacneb_at_[hidden]> writes:

> Hello,
>
> I have an application that I need to both embed and
> extend Python.  The Python portion is actually an
> existing plotting utility that I’m trying to leverage
> in a legacy C++/OpenGL application.
>
> The Boost.Python tutorial has helped me successfully
> expose my C++ classes to Python.  However, I’m having
> difficulty embedding the Python – accessing Python
> interfaces from C++.  The tutorial examples seem to
> lean toward embedding Python statements rather than
> actually addressing interface issues (IMHO).

That's pretty vague.

> Assuming the Python code to embed is in its own file
> (not actually embedding Python statements), does
> Boost.Python provide an encapsulated class or
> functional interface?  Documentation/examples?
>
> Any help is greatly appreciated.

There are some examples in libs/python/test/embedding.cpp

http://www.boost-consulting.com/boost/libs/python/test/embedding.cpp

Note how the __main__ module is accessed there.  You can get ahold of
individual attributes (functions, variables, classes) in that module
via

        object some_thing = main_namespace.attr("whatever")

HTH,

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com