In Python threading, how I can I track a thread's completion?

Question

I\'ve a python program that spawns a number of threads. These threads last anywhere between 2 seconds to 30 seconds. In the main thread I want to track whenever each thread

Answer 1

What I would suggest is loop like this

while len(threadSet) > 0:
    time.sleep(1)
    for thread in theadSet:
        if not thread.isAlive()
            print "Thread "+thread.getName()+" terminated"
            threadSet.remove(thread)

There is a 1 second sleep, so there will be a slight delay between the thread termination and the message being printed. If you can live with this delay, then I think this is a simpler solution than the one you proposed in your question.