问PyQt5 -封装/使组件可重用-示例: QTimer/QLabel在父类之外的实现

EN

import sys 
import logging

from PyQt5 import QtWidgets, QtCore, QtGui

__log__ = logging.getLogger()


class App(QtWidgets.QApplication):
    
    def __init__(self, sys_argv):
        super(App, self).__init__(sys_argv)
        self.main_view = MainView()
        self.main_view.show()


class MainView(QtWidgets.QMainWindow):
    def __init__(self):
        super().__init__()
        self.setObjectName("MreUi")
        self.resize(300, 100)
        self.setWindowTitle('MreUi')
        self.label = QtWidgets.QLabel()
        self.setCentralWidget(self.label)
        config_clock(self.label)
        self.start_clocks()
        
    def start_clocks(self):
        timer = QtCore.QTimer(self)
        timer.timeout.connect(self.show_time)  
        timer.start(1000)
        
    def show_time(self):
        current_time = QtCore.QTime.currentTime()
        clock_label_time = current_time.toString('hh:mm:ss')
        self.label.setText(clock_label_time)


def config_clock(label):
    label.setAlignment(QtCore.Qt.AlignCenter)
    font = QtGui.QFont('Arial', 24, QtGui.QFont.Bold)
    label.setFont(font)
        
        
if __name__ == '__main__':
    logging.basicConfig()
    app = App(sys.argv)
    try:
        sys.exit(app.exec_())
    except Exception as e:
        __log__.error('%s', e)

# from inside my QWidget:
config_clock(self.label)

# this function would live outisde the class, thus reusable by diff Qt apps:
def config_clock(label):
   # start the clock
   # set default font, etc for label
   # instantiate QtCore.QTimer
   # # but that's when I realized I've always passed self to QtCore.QTimer and that maybe encapsulating this isn't as trivial as I thought.

def config_clock(label, parent_qtwidget):
# also feels clunky and not sure if parent would be the right term