[Pythoncard-users] newbie, how to reference app instance

[Sells, F. <fr...@ad...>]

I have a single window PythonCard app plus a few more classes to wrap access
to a DB, Serial IO and a directory of jpg's.
 
I would like to pull everything together in a Controller.py module which
would be able to access the my PythonCard module (i.e. the one that matches
the PythonCard resource file). I started off using the worldclock demo from
the samples directory and have significantly gutted it to fit my needs.
 
I cannot seem to find a way to reference the worldclock instance object so
that my controller can use it's methods to update the GUI.  the snippet I
think relates is:
 
    app = model.Application(WorldClock)
    app.MainLoop()
 
I tried doing a "dir()" on app, but didn't recognize anything as giving me
access to the instance of WordClock.  
 
I realize I could make WorldClock my "Controller", but that's just not the
way I see the design.  After all this, by questions are:
1. is there a way to reference the instance of WorldClock, or
2. am I looking into the wrong end of the pipe for PythonCard and should I
make WorldClock.py my primary controller?
 
I've included the entire source for WorldClock.py below, for what it's
worth:
 
#!/usr/bin/python
 

import urllib
import os
import time
import wx
from cStringIO import StringIO
 
from PythonCard import graphic, log, model, timer
#from PythonCard.log import Log
 
class WorldClock(model.Background):
 
    def on_initialize(self, event):
        self.clockTimer = timer.Timer(self.components.staticTextClock, -1)
        self.clockTimer.start(1000)  # 1 second
        self.updateDateAndTime()
 
    def on_staticTextClock_timer(self, event):
        self.updateDateAndTime()
 
    def updateDateAndTime(self):        
        t = time.strftime("%I:%M %p")
        if t[0] == "0": t = t[1:]
        d = time.strftime("%A, %B %d, %Y")
        self.components.staticTextClock.text = d+"       "+t
 
    def on_imageButtonWorld_timer(self, event):
        print "imageButtonWorld_timer"
        
    def on_Leave_mouseClick(self, event):
        print "clicked leave"
 
    def on_Arrive_mouseClick(self, event):
        print "arrive"
 
    def on_showHistory_mouseClick(self, event):
        print "history"
 
    def on_close(self, event):
        self.clockTimer.stop()
        event.skip()
        
    def setEmployee(self, employee):
        self.components.Name.text = employee.getFullName()
        bmp = graphic.Bitmap(employee.getPictureFilename())
        if employee.LName=='BURRILL':
            bmp.rotate180(1)
 

def createApplication():
    app = model.Application(WorldClock)
    for d in dir(app):print d
    app.MainLoop()
    ##mainloop never returns.
 
if __name__ == '__main__':
    createApplication()