Traceback (most recent call last):
  File "C:\tmp2\testicontrey", line 28, in <module>
    sys.exit(app.exec_())
SystemExit: 0

import sys, os
from PyQt4.QtCore import SIGNAL
from PyQt4.QtGui import QApplication
from PyQt4.QtGui import QIcon
from PyQt4.QtGui import QMenu
from PyQt4.QtGui import QAction
from PyQt4.QtGui import QSystemTrayIcon
from PyQt4.QtCore import QString
from PyQt4.QtCore import SLOT
from PyQt4.QtCore import QTimer

if __name__ == "__main__":
    app = QApplication(sys.argv)
    plik = QString("/usr/share/icons/crystalsvg/16x16/apps/wine.png")
    menu = QMenu()
    quitAction = menu.addAction('Quit')
    sicon = QIcon(plik)
    tray = QSystemTrayIcon(sicon)
    tray.setContextMenu(menu)
    tray.show()
    quitAction.connect(quitAction, SIGNAL("triggered()"), app, SLOT("quit()"))
    tray.setToolTip("Ale czad!")

    def show_message():
        tray.showMessage("Title of the message", "Body of the message")

    QTimer.singleShot(2000, show_message)
    sys.exit(app.exec_())

from PyQt4 import QtCore
dummy_parent = QtCore.QObject()
# ...
tray = QSystemTrayIcon(sicon, parent=dummy_parent)

import sys, os
from PyQt4 import QtCore
from PyQt4.QtCore import SIGNAL
from PyQt4.QtGui import QApplication
from PyQt4.QtGui import QIcon
from PyQt4.QtGui import QMenu
from PyQt4.QtGui import QAction
from PyQt4.QtGui import QSystemTrayIcon
from PyQt4.QtCore import QString
from PyQt4.QtCore import SLOT
from PyQt4.QtCore import QTimer

if __name__ == "__main__":
    dummy_parent = QtCore.QObject()
    app = QApplication(sys.argv)
    plik = QString("/usr/share/icons/crystalsvg/16x16/apps/wine.png")
    menu = QMenu()
    quitAction = menu.addAction('Quit')
    sicon = QIcon(plik)
    tray = QSystemTrayIcon(sicon, parent=dummy_parent)
    tray.setContextMenu(menu)
    tray.show()
    quitAction.connect(quitAction, SIGNAL("triggered()"), app, SLOT("quit()"))
    tray.setToolTip("Ale czad!")

    def show_message():
        tray.showMessage("Title of the message", "Body of the message")

    QTimer.singleShot(2000, show_message)
    sys.exit(app.exec_())
    

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import sys
import time
 
from PyQt4 import QtGui, QtCore
 
 
class WorkerThread(QtCore.QThread):
    def __init__(self, tray_icon):
        QtCore.QThread.__init__(self)
        self.tray_icon = tray_icon
        self._need_to_stop = False
 
    def run(self):
        counter = 0
        while not self._need_to_stop:
            print 'Doing work'
            self.tray_icon.showMessage('Test', 'Test message %s' % counter)
            counter += 1
            time.sleep(1)
        print 'exiting'
        QtGui.QApplication.quit()
 
    def stop(self):
        self._need_to_stop = True
 
 
app = QtGui.QApplication(sys.argv)
tray = QtGui.QSystemTrayIcon(
    QtGui.QIcon(":/trolltech/styles/commonstyle/images/standardbutton-open-128.png")
)
worker = WorkerThread(tray)
menu = QtGui.QMenu()
quit_action = menu.addAction('Quit')
quit_action.triggered.connect(worker.stop)
tray.setContextMenu(menu)
tray.show()
worker.start()
app.exec_()

QtCore.QTimer.singleShot(0, my_main_loop)

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import sys
import time
from Tkinter import *
import urllib2
import Tkinter
from PyQt4 import QtGui, QtCore
def translate(to_translate, to_langage="auto", langage="auto"):
        '''Return the translation using google translate
        you must shortcut the langage you define (French = fr, English = en, Spanish = es, etc...)
        if you don't define anything it will detect it or use english by default
        Example:
        print(translate("salut tu vas bien?", "en"))
        hello you alright?'''
        agents = {'User-Agent':"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.04506.30)"}
        before_trans = 'class="t0">'
        link = "http://translate.google.com/m?hl=%s&sl=%s&q=%s" % (to_langage, langage, to_translate.replace(" ", "+"))
        request = urllib2.Request(link, headers=agents)
        page = urllib2.urlopen(request).read()
        result = page[page.find(before_trans)+len(before_trans):]
        result = result.split("<")[0]
        return result
tk = Tk()
class WorkerThread(QtCore.QThread):
    def __init__(self, tray_icon):
        QtCore.QThread.__init__(self)
        self.tray_icon = tray_icon
        self._need_to_stop = False
 
    def run(self):
        
        
        while not self._need_to_stop:
 
            
            try:
                #tk.withdraw()
                cb = tk.selection_get(selection = "CLIPBOARD")# извлечь из буфера обмена
                to_translate = cb
                #print("%s >> %s" % (to_translate, translate(to_translate)))
                tr= ("%s >> %s" % (to_translate, translate(to_translate, 'ru').decode("utf-8")))
                #tk.clipboard_clear()
                #tk.destroy()
                self.tray_icon.showMessage('Translate', tr)
                
                time.sleep(4)
            except: pass
            
        print 'exiting'
        QtGui.QApplication.quit()
 
    def stop(self):
        self._need_to_stop = True
 
 
app = QtGui.QApplication(sys.argv)
tray = QtGui.QSystemTrayIcon(
    QtGui.QIcon(":/trolltech/styles/commonstyle/images/standardbutton-open-128.png")
)
worker = WorkerThread(tray)
menu = QtGui.QMenu()
quit_action = menu.addAction('Quit')
quit_action.triggered.connect(worker.stop)
tray.setContextMenu(menu)
tray.show()
worker.start()
app.exec_()

import sys
from PyQt4 import QtGui
 
 
def on_clipboard_changed():
    text = app.clipboard().text()
    # ...
    tray.showMessage('Title', 'Translate: %s' % text)
 
app = QtGui.QApplication(sys.argv)
app.clipboard().dataChanged.connect(on_clipboard_changed)
tray = QtGui.QSystemTrayIcon(
    QtGui.QIcon(":/trolltech/styles/commonstyle/images/standardbutton-open-128.png")
)
menu = QtGui.QMenu()
quit_action = menu.addAction('Quit')
quit_action.triggered.connect(app.quit)
tray.setContextMenu(menu)
tray.show()
app.exec_()