Python Threads

[Sick Monkey]

Is there anyway to get 2 python threads to talk to one another?

I have a GUI which is spawning a thread to make a large calculation (that
way the GUI does not appear to be non responsive).  I am trying to attach a
progress bar to the threaded action.  As the thread is calculating data, I
would like it to communicate with the other (progress) thread to update it.

On windows, when I spawn the progress bar without using threads, the
progress bar stalls....  <<this does not happen on linux.>>  So I thought by
spawning the progress bar by using a thread, it would not stall.......  If
anyone can think of another technique.... I am all ears.

~~~~~~~~~~START SAMPLE~~~~~~~~~~~~~~~~~~~~~~~~
def progressBar(status):
    mroot = Tkinter.Tk(className='Worker Bee')
    metric = Meter(mroot, relief='ridge', bd=3)
    metric.pack(fill='x')
    metric.set(status, 'Starting ...')

def fetchFiles(file1,file2,file3):
   method = ''
   print file1
   print file2
   print file3
   f1 = fopen(file1)
   a = f1.readlines(); f1.close()
   d1 = {}
   for c in a:
      for m in mailsrch.findall(c):
         d1[m.lower()] = None

   ####I Would like to  Update the progress bar running in the other thread
here.
   ## set status = .33 and update progress bar.
   if file2 == '':
      domain(d1,file3)
#...

def startProc():
      status = 0
      thread.start_new_thread(fetchFiles, (f1name,f2name,f3name,))
      thread.start_new_thread(progressBar, (status,))

~~~~~~~~~~END SAMPLE~~~~~~~~~~~~~~~~~~~~~~~~
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/python-list/attachments/20070218/4e4a1315/attachment.html>