py3: ported PartDesign to python3

src/Mod/PartDesign/Gui/AppPartDesignGui.cpp

@@ -97,11 +97,11 @@ PyObject* initModule()
 
 
 /* Python entry */
-PyMODINIT_FUNC initPartDesignGui()
+PyMOD_INIT_FUNC(PartDesignGui)
 {
     if (!Gui::Application::Instance) {
         PyErr_SetString(PyExc_ImportError, "Cannot load Gui module in console application.");
-        return;
+        PyMOD_Return(0);
     }
 
     try {
@@ -110,10 +110,10 @@ PyMODINIT_FUNC initPartDesignGui()
     }
     catch(const Base::Exception& e) {
         PyErr_SetString(PyExc_ImportError, e.what());
-        return;
+        PyMOD_Return(0);
     }
 
-    (void)PartDesignGui::initModule();
+    PyObject* mod = PartDesignGui::initModule();
     Base::Console().Log("Loading GUI of PartDesign module... done\n");
 
     // instantiating the commands
@@ -154,4 +154,6 @@ PyMODINIT_FUNC initPartDesignGui()
 
      // add resources and reloads the translators
     loadPartDesignResource();
+
+    PyMOD_Return(mod);
 }