SysTray App

import sys
from PyQt4 import QtGui, QtCore

class SystemTrayIcon(QtGui.QSystemTrayIcon):
    def __init__(self, icon, parent=None):
        QtGui.QSystemTrayIcon.__init__(self, icon, parent)

        menu = QtGui.QMenu(parent)
        exitAction = menu.addAction("Exit")
        helloAction = menu.addAction("Hello World")

        self.setContextMenu(menu)
        QtCore.QObject.connect(exitAction, QtCore.SIGNAL('triggered()'), self.exit)
        QtCore.QObject.connect(helloAction, QtCore.SIGNAL('triggered()'), self.hello)

    def exit(self):
        QtCore.QCoreApplication.exit()

    def hello(self):
        msg = QtGui.QMessageBox.information(QtGui.QMessageBox(), "Hello", "Hello World")

def main():
    app = QtGui.QApplication(sys.argv)

    w = QtGui.QWidget()
    trayIcon = SystemTrayIcon(QtGui.QIcon("qtLogo.png"), w)

    trayIcon.show()
    sys.exit(app.exec_())

if __name__ == '__main__':
    main()