#include 
#include 

using namespace std;

int main(int argc, char* argv[]) {
	PyObject *pModule, *pDict, *pFunc;
	PyObject *pArgs, *pArg, *pResult;
	
	Py_Initialize();
	// ...
	PyRun_SimpleString("import sys");
	PyRun_SimpleString("sys.path.append("./")");
	
	// ...
	pModule = PyImport_ImportModule("callback");

	if(pModule != NULL) {
		pDict = PyModule_GetDict(pModule);
		pFunc = PyDict_GetItemString(pDict, "hello");

		if(pFunc && PyCallable_Check(pFunc)) {
			pResult = PyObject_CallObject(pFunc, NULL);
			if(pResult != NULL) {
				cout 

using namespace