Python PyQt custom signal example

the PythonQt::addObject() method · when a Qt slot returns a QObject derived object to python · when a Qt signal contains a QObject and is connected to a python

The selectionChanged signal passes the QgsMapLayer that had a selection change So, your slot should look like selectedChanged If

python signal slot Basic Example of using a pure python SignalSlot implementation talking between threads Aims to feel like Qt's Signals

python predicting lottery numbers from past draws QT's widgets have predefined slots so that it is possible to directly connect a signal of one widget to a slot of another widget Lesson 1 Python 3, ArcGIS