pyqt signals and slots | pyqt signals and slots

This is my first attempt to use Signals/Slots and I need some help. I have read Qt's "Signals and Slots" documentation and looked at a few examples.

Qt5 Tutorial: Signals and Slots

An overview of Qt's signals and slots inter-object communication mechanism. Signals and slots are used for communication between objects. The signals and slots mechanism is a central feature of Qt and probably the part that differs most from the features provided by other frameworks. Signals and slots are made possible by Qt's meta-object system.