mapnik/plugins/input/python/python_utils.cpp

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#include "python_utils.hpp"
std::string extractException()
{
using namespace boost::python;
PyObject *exc,*val,*tb;
PyErr_Fetch(&exc,&val,&tb);
PyErr_NormalizeException(&exc,&val,&tb);
handle<> hexc(exc),hval(allow_null(val)),htb(allow_null(tb));
if(!hval)
{
return extract<std::string>(str(hexc));
}
else
{
object traceback(import("traceback"));
object format_exception(traceback.attr("format_exception"));
object formatted_list(format_exception(hexc,hval,htb));
object formatted(str("").join(formatted_list));
return extract<std::string>(formatted);
}
}