When Python parses a class to find signals and slots, the resulting list contains the methods in the order they are defined in the source code. After that, properties are parsed, and the notify ids are set based on the relative order of the parsed methods. But because the methods are sorted before their details are put into the dynamic QMetaObject, the notify id of a property might point to a wrong method. This fix makes sure that the relative notify id of every property is recomputed before being written to the QMetaObject. This allows QML bindings to work correctly. Change-Id: I5e50970fee9a42ae8ea551b7891d396b8a6eda97 Reviewed-by: Christian Tismer <tismer@stackless.com> Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>