from PyQt4 import QtCore
 
import asyncio
import aiohttp
 
 
class Main(QtCore.QThread):
    def __init__(self):
        super(Main, self).__init__()
 
    def run(self):
        loop = asyncio.get_event_loop()
        with aiohttp.ClientSession(loop=loop) as session:
            content = loop.run_until_complete(
                self.fetch_page(session, 'http://python.org'))
            print(content)
 
    async def fetch_page(session, url):
        with aiohttp.Timeout(10):
            async with session.get(url) as response:
                assert response.status == 200
                return await response.read()
 
app = QtCore.QCoreApplication([])
m = Main()
m.start()
m.wait()
app.exec_()

from PyQt4 import Qt
if __name__=="__main__":
    app = Qt.QApplication([])
    #w = Qt.QWidget()
    #w.show()
    m = Main()
    app.exec_()

loop = asyncio.get_event_loop()
with aiohttp.ClientSession(loop=loop) as session:

from threading import Thread,Event
from time import sleep
class MyTimer(Thread):
    def __init__(self, interval=1):
        Thread.__init__(self)
        self.stopped = Event()
        self.count = 0
        self.interval = interval
    def stop(self):
        self.stopped.set()
    def run(self):
        while not self.stopped.wait(self.interval):
            self.count += 1
            print 'count:',self.count
if __name__=="__main__":
    t = MyTimer()
    t.start()
    sleep(10)
    t.stop()