Question about basic use of a timer object from timeit module to execute code every so often in a class

[42zeros at gmail.com]

I would like a function to be executed every x often.
I was just wondering how to pass the following code correctly.  my
object t just doesn't know what checkMail is.  How can I tell it that
checkMail is a member of the class MyApp?

thanks in advance,
code is below


class MyApp(wx.App):
    def OnInit(self):


        frame = wxMainFrame(None, "thing")
	icon = wx.Icon('foo.bmp', wx.BITMAP_TYPE_ICO)
        frame.SetIcon(icon)
	self.SetTopWindow(frame)

        t = timeit.Timer("checkMail()","30.0")

	t.timeit()
	return True


    def checkMail():
	
        print "The number of messages is"