Hi,
I have a question regarding the below code.
It's an example how to pass a custom class via shared_ptr to embedded
python code and it works when boost is dynamically linked.
Unfortunately the same code with statically linked boost doesn't work
with the following error message:
"No to_python (by-value) converter found for C++ type: class
boost::shared_ptr<class Foo>".
I don't understand why a different linking can affect type recognition
of a registered converter. What am I missing?
Can anybody help me out?
Thanks,
Dominik
https://stackoverflow.com/questions/8225934/exposing-a-c-class-instance-to-a-python-embedded-interpreter?noredirect=1&lq=1
|#include#include#include#include<string>#include<iostream>namespacebp
=boost::python;structFoo{Foo(){}Foo(std::stringconst&s):m_string(s){}voiddoSomething(){std::cout
<<"Foo:"<("Foo").def("doSomething",&Foo::doSomething);};|
|#include#include#include#include<string>#include<iostream>namespacebp
=boost::python;structFoo{Foo(){}Foo(std::stringconst&s):m_string(s){}voiddoSomething(){std::cout
<<"Foo:"<("Foo").def("doSomething",&Foo::doSomething);};intmain(intargc,char**argv){Py_Initialize();try{PyRun_SimpleString("a_foo
= None\n""\n""def setup(a_foo_from_cxx):\n"" print 'setup called with',
a_foo_from_cxx\n"" global a_foo\n"" a_foo = a_foo_from_cxx\n""\n""def
run():\n"" a_foo.doSomething()\n""\n""print 'main module
loaded'\n");foo_ptr a_cxx_foo
=boost::make_shared<Foo>("c++");inithello();bp::objectmain
=bp::object(bp::handle<>(bp::borrowed(PyImport_AddModule("__main__"))));//
pass the reference to a_cxx_foo into python:bp::objectsetup_func
=main.attr("setup");setup_func(a_cxx_foo);// now run the python 'main'
functionbp::objectrun_func
=main.attr("run");run_func();}catch(bp::error_already_set){PyErr_Print();}Py_Finalize();return0;}|
