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From: Marco Borm ([hidden])
Date: 2005-03-09 11:38:57

Hi Boost/Python developers,

at first I have to say that I am no boost nor a python expert.
I've searched for hours now on the web for my problem but was unable to
find some solution for my problem:

Currently I am working on the possibility that an python-script is
called by an existing c++ object. This was "easy" to do with and without
the boost python-classes.

To make this more complicate, the script must be able to call some
member functions of this object.
So to make this possible I created an BOOST_PYTHON_MODULE() containing
the class and the to be called member function-definitions.
Now it is possible to create new instances of the class and call them
from python. It is also possible to do the following in my c++
object-code: "ret = boost::python::call<int>(PyFunction.ptr(), this );"

But now my problem: boost copies the object and passes only that copy to
the function.
Is it and how is it possible to make the object accessible to the
function within the python-script?
I have found some hints in the boost-source for using smartptr but I was
unable to use them as an parameter for call(): "TypeError: No to_python
(by-value) converter found for C++ type: class boost::shared_ptr<TYPE>".
I am also don't known if this is the right way to do.

Thanks for help!
Marco Borm

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