if (PyType_Ready(&Window_Type) < 0 ||
        PyType_Ready(&WindowDialog_Type) < 0 ||
        PyType_Ready(&WindowXML_Type) < 0 ||
        PyType_Ready(&WindowXMLDialog_Type) < 0 ||
        PyType_Ready(&ListItem_Type) < 0 ||
        PyType_Ready(&Control_Type) < 0 ||
        PyType_Ready(&ControlSpin_Type) < 0 ||
        PyType_Ready(&ControlLabel_Type) < 0 ||
        PyType_Ready(&ControlFadeLabel_Type) < 0 ||
        PyType_Ready(&ControlTextBox_Type) < 0 ||
        PyType_Ready(&ControlButton_Type) < 0 ||
        PyType_Ready(&ControlCheckMark_Type) < 0 ||
        PyType_Ready(&ControlList_Type) < 0 ||
        PyType_Ready(&ControlImage_Type) < 0 ||
        PyType_Ready(&ControlProgress_Type) < 0 ||
        PyType_Ready(&Dialog_Type) < 0 ||
        PyType_Ready(&DialogProgress_Type) < 0 ||
        PyType_Ready(&Action_Type) < 0)
      return;