Thanks alot it works , Here is working example taken from other website .

import sys
from PyQt4 import QtCore, QtGui

class MainWindow(QtGui.QMainWindow):
    def __init__(self):
        QtGui.QMainWindow.__init__(self)
        #QtCore.QTimer.singleShot(4000, self.start)

    def start(self):
        print 'start'
        QtCore.QTimer.singleShot(4000, self.start)

if __name__ == "__main__":

    app = QtGui.QApplication(sys.argv)
    mw = MainWindow()
    mw.show()
    mw.start()
    sys.exit(app.exec_())

On Wed, Aug 17, 2011 at 12:23 PM, Phil Thompson <p...@riverbankcomputing.com
> wrote:

> On Wed, 17 Aug 2011 03:07:03 +0500, uahmed <gleam.uah...@gmail.com> wrote:
> > Hi
> >
> > In tkinter i use after method to recall the function after particular
> > interval time and that function do the the changes in GUI . What i
> should
> > use to do changes in Pyqt GUI ?
>
> QTimer.singleShot()
>
> Phil
>
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