Dynamic real-time clock display in Python

Hello,

A quick Google search will take you, for example, to this page, which exactly addresses your problem.

# importing required library import sys from PyQt5.QtWidgets import QApplication, QWidget from PyQt5.QtWidgets import QVBoxLayout, QLabel from PyQt5.QtGui import QFont from PyQt5.QtCore import QTimer, QTime, Qt class Window(QWidget): def __init__(self): super().__init__() # setting geometry of main window self.setGeometry(100, 100, 800, 400) # creating a vertical layout layout = QVBoxLayout() # creating font object font = QFont('Arial', 120, QFont.Bold) # creating a label object self.label = QLabel() # setting centre alignment to the label self.label.setAlignment(Qt.AlignCenter) # setting font to the label self.label.setFont(font) # adding label to the layout layout.addWidget(self.label) # setting the layout to main window self.setLayout(layout) # creating a timer object timer = QTimer(self) # adding action to timer timer.timeout.connect(self.showTime) # update the timer every second timer.start(1000) # method called by timer def showTime(self): # getting current time current_time = QTime.currentTime() # converting QTime object to string label_time = current_time.toString('hh:mm:ss') # showing it to the label self.label.setText(label_time) # create pyqt5 app App = QApplication(sys.argv) # create the instance of our Window window = Window() # showing all the widgets window.show() # start the app App.exit(App.exec_())

Contrary to what was said earlier, using a loop is not the right approach, as all modules for displaying a graphical interface (whether it’s PyQt, GTK, or Tk) use a main loop to run the program. In terms of implementation, this means that your entire program reacts to events (for example, a mouse click, keyboard input, or, in this case, a time step), and the main program only launches the window.

Now, let's break down the program above:

• timer

  triggers an event every second; this event is triggered through

  connect

  to the method

  showTime

  ;
• the method

  showTime

  updates the display;
• the main program only creates and launches the application.

Good luck!

Hello,

you are only showing part of your code.

Please use code tags when sharing code: https://codes-sources.commentcamarche.net/faq/11288-les-balises-de-code

I suggest making a loop, in which you also include a pause of one second (or less, depending on the precision required).

I tried that, but it didn't work with the PyQt5 graphical interface.

from datetime import datetime import time from PyQt5.uic import loadUi from PyQt5.QtWidgets import QApplication app=QApplication([]) win=loadUi('time.ui') win.show() now = datetime.now() t2 = now.strftime("%H:%M:%S") win.t1.setText(t2)

Note:

t1

is the time display area. it is a

Label

area.