Slot ¶

PySide2 adopt PyQt5’s new signal and slot syntax as-is. The PySide2 implementation is functionally compatible with the PyQt5 one, with the exceptions listed below.

PyQt5’s new signal and slot style utilizes method and decorator names specific to their implementation. These will be generalized according to the table below:

There is no equivalent of the Q_INVOKABLE macro of Qt since PySide2 slots can actually have return values. If you need to create a invokable method that returns some value, declare it as a slot, e.g.:

class Foo(QObject):
    @Slot(float, result=int)
    def getFloatReturnInt(self, f):
        return int(f)