PyQt5: Updating Label?

Question

I\'m currently having trouble updating labels continuously, I have tried my different ways but either nothing happens or the program stops working. I have attached below pa

Answer 1

Here is a small working example that should help you. QTimer is used for periodical calling the update_labelTime function.

import sys
from PyQt5.QtCore import QTimer, QTime
from PyQt5.QtWidgets import QApplication, QMainWindow, QLabel

class MyApp(QMainWindow):
    def __init__(self):
        super(MyApp, self).__init__()

        self.labelTime = QLabel()
        self.update_labelTime()
        self.setCentralWidget(self.labelTime)

        self.timer = QTimer()
        self.timer.timeout.connect(self.update_labelTime)
        self.timer.start(1000) # repeat self.update_labelTime every 1 sec

    def update_labelTime(self):

        time_str = "Current time: {0}".format(QTime.currentTime().toString())
        self.labelTime.setText(time_str)

if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = MyApp()
    window.show()
    sys.exit(app.exec_())

P.S. Don't forget to change the updating period in timer.start call