我正在尝试线程wx.ProgressDialog。我有一个进度线程课程

class Progress(threading.Thread):
    def __init__(self):
        threading.Thread.__init__(self)
    def run(self):
        max = 1000000

        dlg = wx.ProgressDialog("Progress dialog example",
                               "An informative message",
                               maximum = max,
                               parent=None,
                               style = wx.PD_CAN_ABORT
                                | wx.PD_APP_MODAL
                                | wx.PD_ELAPSED_TIME
                                | wx.PD_ESTIMATED_TIME
                                | wx.PD_REMAINING_TIME
                                )
        keepGoing = True
        count = 0

        while keepGoing and count < max:
            count += 1
            wx.MilliSleep(250)

            if count >= max / 2:
                (keepGoing, skip) = dlg.Update(count, "Half-time!")
            else:
                (keepGoing, skip) = dlg.Update(count)
        dlg.Destroy()

当我按下一个按钮时会被调用

class MiPPanel ( wx.Panel ):
    [...]
    def runmiP(self, event):
        thread1 = Progress() 
        thread1.start()

当我运行thread1.start（）时，我收到100此类警告，2012-12-01 00:31:19.215 Python[3235:8807] *** __NSAutoreleaseNoPool(): Object 0x11a88f300 of class NSConcreteAttributedString autoreleased with no pool in place - just leaking并且进度条不显示。

如何在wxPython中使用线程制作进度条？