Using lambda expression to connect slots in pyqt

Question

I am trying to connect slots with lambda functions, but it\'s not working the way I expect. In the code below, I succeed in connecting the first two buttons correctly. For t

Answer 1

Beware! As soon as you connect your signal to a lambda slot with a reference to self, your widget will not be garbage-collected! That's because lambda creates a closure with yet another uncollectable reference to the widget.

Thus, self.someUIwidget.someSignal.connect(lambda p: self.someMethod(p)) is very evil :)