Hi
I've got an embedded python system up and running, for evaluation purposes.
I am able to expose c++ modules to python, create c++ classes in python,
and extract and use those python types in c++! Cool!
However, what if I want to pass a c++ type to a python class? Is there
some way to covnert my class, Logger in this case, to an bpy object, or
some other way?
Here's my code:
// main.cpp
#include <iostream>
#include <boost/python.hpp>
#include <boost/detail/lightweight_test.hpp>
#include "../logger/logger.h"
using namespace boost::python;
using namespace std;
BOOST_PYTHON_MODULE(hybrid)
{
class_<Logger, boost::noncopyable>("Logger")
.def("StartLogToFile", &Logger::StartLogToFile)
.def("SYS", &Logger::SYS)
;
}
int main(int, char **)
{
Py_Initialize();
try
{
// Get main module and namespace
object
pyModule_main(handle<>(borrowed(PyImport_AddModule("__main__"))));
object pyNamespace_main = pyModule_main.attr("__dict__");
// expose boost python modules
inithybrid();
exec("print 'Embedded python....'\n", m_pyNamespace_main);
// import another module
object pyModule_test = import("test");
object pyNamespace_test = pyModule_test.attr("__dict__");
// c++ object, creating in python, extracted and used in c++!
THIS WORKS
Logger* log = extract<Logger*>(pyNamespace_test["pyLogger"]);
log->SYS("C++ using an object created in python embedded in
c++!", 0);
Logger* cppLogger = new Logger;
cppLogger->StartLogToFile("cppLog.txt");
//Push c++ logger into python namespace THIS DOESN'T!
pyNamespace_test["logger"] = cppLogger;
object ignored = exec("useCppLogger()", m_pyNamespace_test,
m_pyNamespace_test);
}
catch (error_already_set)
{
PyErr_Print();
}
delete cppLogger;
}
# test.py
import hybrid
pyLogger = hybrid.Logger()
pyLogger.StartLogToFile("pyLogger.txt")
pyLogger.SYS("Python using a python Logger. wow...")
def useCppLogger():
# cppLogger has been pushed into module namespace by c++
global cppLogger
cppLogger.SYS("Python using a Logger class passed from c++")
#
Thanks for any help!
Simon
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