try {
.
.
.
}catch(AnyPythonERROR &e) {
// PyErr_Print(); // <------ This output must be shown in the MessageBox
MessageBox("HERE COMES THE PYTHON ERROR (BACKTRACE)");
}
catch (bp::error_already_set const&) {
bp::str blubb = bp::import("sys").attr("stderr").attr("data");
}
error: conversion from `boost::python::api::proxy<boost::python::api::attribute_policies>' to non-scalar type `boost::python::str' requested
class Foo {public: void Bar( std::string const& message ) { MessageBox( message ); }};BOOST_PYTHON_MODULE(whatever) { class_< Foo >( "Foo", init_t<>() ) .def( "write", &Foo::Bar ) ;}Foo foo;import("sys").attr("stderr") = foo;#include <boost/python.hpp>#include <boost/python/import.hpp>#include <boost/python/detail/api_placeholder.hpp>#include <QtCore/QCoreApplication>#include <QString>#include <iostream>#include <string>#include <QDebug>namespace bp = boost::python;using namespace std;class Foo {public: std::string m_s; void Bar( std::string const& message ) { //MessageBox( message ); m_s = message; }};BOOST_PYTHON_MODULE(whatever) { bp::class_<Foo>("Foo") //bp::class_< Foo >( "Foo", boost::init_t<>() ) .def( "write", &Foo::Bar ) ;}int main(int argc, char *argv[]) { QCoreApplication app(argc, argv); // Test python script QString python_code("# -*- coding: iso-8859-15 -*-\n" "result )= 5 ** 2\n" "OUT = {'language' : 'German', 'name' : 'Max Mustermann', 'age' : 28}"); Py_Initialize(); Foo foo; bp::import("sys").attr("stderr") = foo; try { PyRun_SimpleString(python_code.toStdString().c_str());//"result = 5 ** 2"); bp::object module(bp::handle<>(bp::borrowed(PyImport_AddModule("__main__")))); bp::object dictionary = module.attr("__dict__"); bp::object result = dictionary["result"]; //double result_value = extract<double>(result); { bp::extract<int> x(result); if (x.check()) { int v = x(); qDebug() << "Extract Type: Integer = " << QString("%1").arg(v); } }{ bp::extract<double> x(result); if (x.check()) { double v = x(); qDebug() << "Extract Type: Double = " << QString("%1").arg(v); } }{ bp::extract<bool> x(result); if (x.check()) { bool v = x(); qDebug() << "Extract Type: Boolean = " << QString("%1").arg(v); } }{ bp::extract<long> x(result); if (x.check()) { long v = x(); qDebug() << "Extract Type: long = " << QString("%1").arg(v); } }{ bp::extract<std::string> x(result); if (x.check()) { std::string v = x(); qDebug() << "Extract Type: std::string = " << QString("%1").arg(v.c_str()); } } } catch(...) { cerr << "Out1: " << foo.m_s << endl; } cerr << "Out2: " << foo.m_s << endl; Py_Finalize(); return 0;}C:\examples\boost_python_example\release>boost_python_example.exeThis application has requested the Runtime to terminate it in an unusual way.Please contact the application's support team for more information.C:\examples\boost_python_example\release>import sys, PG_Intern_ErrorRedirectStdout = 1class Redirect: def write(self, s): PG_Intern_Error.PrintError(s)def SetRedirect( redir ): global RedirectStdout RedirectStdout = redir def Redirection(): global RedirectStdout if ( RedirectStdout ): sys.stderr = sys.stdout = Redirect()initPG_Intern_Error();int Ok = PyRun_SimpleString("import sys, PG_Intern_Error"); if ( Ok != -1 ) { Ok = PyRun_SimpleString("import Erreur"); if ( Ok != -1 ) { Ok = PyRun_SimpleString("Erreur.Redirection()"); } else { PyErr_Print(); } }void PrintError(PyObject* obj) { SendLog( "PythonOut", "%s",PyString_AsString(obj)); }int main(int argc, char *argv[]) { QCoreApplication app(argc, argv); // Test python script QString python_code("# -*- coding: iso-8859-15 -*-\n" "result )= 5 ** 2\n" "OUT = {'language' : 'German', 'name' : 'Max Mustermann', 'age' : 28}"); PyImport_AppendInittab( "module_name", initFoo ); // <-- Note that initFoo is auto generated Py_Initialize(); Foo foo; bp::import("sys").attr("stderr") = foo; try { PyRun_SimpleString(python_code.toStdString().c_str());//"result = 5 ** 2"); bp::object module(bp::handle<>(bp::borrowed(PyImport_AddModule("__main__")))); bp::object dictionary = module.attr("__dict__"); bp::object result = dictionary["result"]; //double result_value = extract<double>(result); { bp::extract<int> x(result); if (x.check()) { int v = x(); qDebug() << "Extract Type: Integer = " << QString("%1").arg(v); } }{ bp::extract<double> x(result); if (x.check()) { double v = x(); qDebug() << "Extract Type: Double = " << QString("%1").arg(v); } }{ bp::extract<bool> x(result); if (x.check()) { bool v = x(); qDebug() << "Extract Type: Boolean = " << QString("%1").arg(v); } }{ bp::extract<long> x(result); if (x.check()) { long v = x(); qDebug() << "Extract Type: long = " << QString("%1").arg(v); } }{ bp::extract<std::string> x(result); if (x.check()) { std::string v = x(); qDebug() << "Extract Type: std::string = " << QString("%1").arg(v.c_str()); } } } catch(...) { PyErr_Print(); // <-- PyErr_Clear(); // <-- cerr << "Out1: " << foo.m_s << endl; } cerr << "Out2: " << foo.m_s << endl; Py_Finalize(); return 0;}
#include <string>#include <boost/shared_ptr.hpp>#include <boost/python.hpp>#include <windows.h>class PyInitializer {public: PyInitializer() { Py_Initialize(); } ~PyInitializer() { Py_Finalize(); }private: PyInitializer(const PyInitializer &); PyInitializer & operator=(const PyInitializer &);};int main(int argc, char* argv[]) { PyInitializer py; try { PyRun_SimpleString("import cStringIO"); PyRun_SimpleString("import sys"); PyRun_SimpleString("sys.stderr = cStringIO.StringIO()"); // stuff that might raise a Python exception boost::python::import("my_script"); // if my_script doesn't exist } catch (boost::python::error_already_set) { PyErr_Print(); boost::python::object sys( boost::python::handle<>(PyImport_ImportModule("sys")) ); boost::python::object err = sys.attr("stderr"); std::string err_text = boost::python::extract<std::string>(err.attr("getvalue")()); MessageBox(0, err_text.c_str(), "Python Error", MB_OK); } return 0;}
