some adjustments

PythonInterpreter/PythonInterpreter.cc

@@ -124,7 +124,7 @@ void PythonInterpreter::initPython() {
      std::cerr << "Initialize Threads ...";
   //#endif
 
-  //PyEval_InitThreads();
+  PyEval_InitThreads();
 
   //#ifdef PYTHON_DEBUG
      std::cerr << " Done" << std::endl;
@@ -166,8 +166,15 @@ void PythonInterpreter::initPython() {
       std::cerr << "Importing OpenFlipper core module ...";
     //#endif
 
+    try{
       py::module of_module(py::module::import("openflipper"));
       main_namespace["openflipper"] = of_module;
+    }
+    catch (py::error_already_set &e)
+    {
+      pyError(e.what());
+      return;
+    }
 
     //#ifdef PYTHON_DEBUG
       std::cerr << " Done" << std::endl;
@@ -272,13 +279,13 @@ bool PythonInterpreter::runScript(const QString& _script) {
   {
 
     //#ifdef PYTHON_DEBUG
-      std::cerr << "Initialize Python" << std::endl;
+      std::cout << "Initialize Python" << std::endl;
     //#endif
 
     initPython();
 
     //#ifdef PYTHON_DEBUG
-      std::cerr << "Done initializing Python" << std::endl;
+      std::cout << "Done initializing Python" << std::endl;
     //#endif
   }
   catch (py::error_already_set &e)