Being able to delay action in a program is useful in a variety of situations. For example, let's say that we want a modeless pop-up dialog that closes itself after a defined number of seconds rather than waiting for a user to click on a button.
We will start by subclassing QDialog:
class AutoCloseDialog(qtw.QDialog):
def __init__(self, parent, title, message, timeout):
super().__init__(parent)
self.setModal(False)
self.setWindowTitle(title)
self.setLayout(qtw.QVBoxLayout())
self.layout().addWidget(qtw.QLabel(message))
self.timeout = timeout
Having saved a timeout value, we now want to override the dialog box's show() method so that it closes after that number of seconds.
A naive approach might be as follows:
def show(self):
super().show()
from time import sleep
sleep(self...
