[PyQt] Unable to call methods returning void from Qml Plugins

[pwuertz]

Hi,
I developed a QML plugin with Qt Creator which I'd like to use in a PyQt5
application. It is loaded in a qml scene and I can access my custom
QQuickItems from python just fine (properties, signals..). However, calling
a Slot that returns a void results in the following TypeError:

Trying to create a QVariant instance of QMetaType::Void type, an invalid
QVariant will be constructed instead
Traceback (most recent call last)
 -- cut --
TypeError: unable to convert a QVariant of type 0 to a QMetaType of type 43

When I rewrite the method of my custom QQuickItem so it returns a bool
instead of void, calling the slot from python works perfectly fine. Also
calling the void method from Qml works as expected.
The PyQt version on my system is 5.3.1.



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