how to pass a sting in signal and slot in pyqt5 new style?

A slot is a Python callable If a signal is connected to a slot then the slot is called when the signal is emitted If a signal isn't connected then nothing

Any function of any object can be used as a slot in Python This contrasts to C++, where you need to specially

python slot machine If an event takes place, each PyQt5 widget can emit a signal A signal does not execute any action, that is done by a slot Related course:

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