Method __init__

python/example/example-pyqt5.py:9–12

(self, fileName=None)

class MainWindow(QtWidgets.QMainWindow):

    def __init__(self, fileName=None):
        super(MainWindow, self).__init__()
        self.init()
        self.setCurrentFile('')
        
    def about(self):
        QtWidgets.QMessageBox.about(self, "About HexEdit",