PyQt5 signalslot connection performance

Signals and slots signal and slot The library defines several user-event signals on various widgets, and it is easy and convenient to add signals and slots to widget classes to communicate signal and slot arguments are not compatible SignalSlot is a pattern that allows loose coupling various components of a software without having to introduce boilerplate code Loose coupling of components

signal and slot in qt Where ever you have a signal you'd have a call-back subroutine called Slots are callbacks moc is connecting the signal to the slot Strictly