Qt4 Timer example

gistfile1.txt

#!/usr/bin/env python

import sys
from PyQt4.QtCore import *
from PyQt4.QtGui import *
from PyQt4.uic import *
import random


class App(QMainWindow):
    def __init__(self):
        QMainWindow.__init__(self)
        self.ui = loadUi("example.ui")
        self.ui.show()
        self.timer = QTimer()
        self.timer.setInterval(1000)
        self.timer.timeout.connect(self.updateBed)
        self.timer.start()

    def updateBed(self):
        self.ui.bedTemperature.setText(str(random.randint(50, 60)))


if __name__ == '__main__':
    app = QApplication(sys.argv)
    win = App()
    app.exec_()