Qt signal is ten times slower than a virtual function

pyqt signal slot   Dan pyqt signal slot

I was to lazy to take a look at the new-style signal and slot support which was introduced in PyQt until yesterday I did know that

Hi guys I'm with a problem when using signal and slots in PyQt Actualy I can't connec the signal with the slot I ever got the message: Object::connect: In this video I demonstrate how to work with signals and slots in PySide or PyQt programming

free slot usa signalslot mechanism As you say, in the direct or blocking case, there's no concern with object lifetime To test this, I modified Ilya's PyQt signals and slots GitHub Gist: instantly share code, notes, and snippets