[PyQt] threading

[Lawrence Shafer]

I've been playing with threading the last few hours, because I have a 
lcd number object in the gui that I want to update once per second. Am I 
barking up the right tree with threading? The problem Ive got is self is 
no longer defined in countFunction. Is there a way to run a thread that 
has access to *everything*?

=============================================================================================
import os
import platform
import time
from math import pi
import re
import thread
from PyQt4 import QtCore, QtGui
import ui_shoptime

class MainWindow(QtGui.QMainWindow,
       ui_shoptime.Ui_ShopTime):

   def __init__(self, parent=None):
       super(MainWindow, self).__init__(parent)
       self.__index = 0
       self.setupUi(self)

   def on_startButton_clicked(self):
       self.startButton.toggle()
       startTime = time.time()
       thread.start_new_thread(countFunction(startTime))
       #threading.Thread(target=count).start()
       #count().start()
       #thread.start_new_thread(countFunction, ())

def countFunction(startTime,*args):
   while 1:
       runtime = time.time() - startTime
       print runtime
       runtimeSeconds = runtime / 60
       self.runningTime.display(runtimeSeconds)
       time.sleep(1)

if __name__ == "__main__":
   import sys

   app = QtGui.QApplication(sys.argv)
   form = MainWindow()
   form.show()
   app.exec_()
   #print form.text()
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