pys60 thread not working in symbian python

Question

I am developing a sms app for symbian using pys60. I have created a thread for sending the sms but theread is not working.
I want this thread to run in background, irrespective of applicaton closed or not.
contact index is a dictionary with contact nos and names.

def send_sms(contact_index):
    import thread
    appuifw.note(u"entered to send sms thread")
    tid = thread.start_new_thread(send_sms_thread, (contact_index, ))
    appuifw.note(u"completed")

it enters "entered to send sms thread" but doesnt go after that.
the function sens_sms_thread is :

def send_sms_thread(contact_index):
    appuifw.note(u"entering the thread in sending sms in loops")
    for numbers in contact_index:
        name = contact_index[number]
        appuifw.note(u"sending sms to %s ." % name)
        messaging.sms_send(numbers, message_content, '7bit', cb, '')
        e32.ao_sleep(30)

can anyone tell me why it is not entering into this thread which will run in background inrrespective of application closed or not?

Answer 1

Use the threading module. Threads created by this module will be waited on by the main thread before the process exits.

thread = threading.Thread(target=send_sms_thread, args=(contact_index,))
thread.start()

Threads created elsewhere, or with the daemon attribute are not waited for.

Answer 2

Try the next snippet:

if __name__=='__main__':

    th = e32.ao_callgate(Udp_recv)
    thread.start_new_thread(th,())

    for i in range(10):
        tmp = (str(i)+data)[0:10]

Udp_recv is the function running in background.