err msg

PyCore/Sample/ImportMultiLayer.cpp

@@ -58,9 +58,7 @@ PyObjectPtr createMultiLayerFromPython(void*& multilayer_ptr, const std::string&
     if (!SWIG_IsOK(res)) {
         Py_DecRef(instance);
         throw std::runtime_error(
-            errorDescription("PyInterpreter::BornAgain: SWIG failed to extract a "
-                             "'MultiLayer' instance via calling the function '"
-                             + functionName + "'"));
+            errorDescription("Call of '" + functionName + "' did not yield MultiLayer instance"));
     }
 
     multilayer_ptr = reinterpret_cast<void*>(argp1);