c++ - How to catch the last line error message by boost::python -

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any way catch last line error message python(using msvc2008)?

try {     boost::python::exec_file(         "somescript.py",                     main_namespace,          local_namespace     );     return true; }catch(const boost::python::error_already_set &){     using namespace boost::python;      pyobject *exc,*val,*tb;         pyerr_fetch(&exc,&val,&tb);     boost::python::handle<> hexc(exc), hval(boost::python::allow_null(val)), htb(boost::python::allow_null(tb));     boost::python::object traceback(boost::python::import("traceback"));      boost::python::object format_exception(traceback.attr("format_exception"));     boost::python::object formatted_list = format_exception(hexc, hval, htb);     boost::python::object formatted = boost::python::str("\n").join(formatted_list);      std::string const result = extract<std::string>(formatted);     std::cout<<result<<std::endl; //pop out lot of error messages }

when output result, there contains many messages, of messages meaningless end users.by use boost::split catch last line of error messages.

//i miss auto typedef boost::container::vector<std::string>::iterator iter; std::string const result = extract<std::string>(formatted);  boost::container::vector<std::string> splitted; boost::split(splitted, result, boost::is_any_of("\n"), boost::token_compress_on);  iter = std::remove(splitted.begin(), splitted.end(), ""); splitted.erase(it, splitted.end());  return splitted.back();


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