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

I'm not sure I see the problem with using: threading.activeCount()

to track the number of threads that are still active?

Even if you don't know how many threads you're going to launch before starting it seems pretty easy to track. I usually generate thread collections via list comprehension then a simple comparison using activeCount to the list size can tell you how many have finished.

See here: http://docs.python.org/library/threading.html

Alternately, once you have your thread objects you can just use the .isAlive method within the thread objects to check.

I just checked by throwing this into a multithread program I have and it looks fine:

for thread in threadlist:
        print(thread.isAlive())

Gives me a list of True/False as the threads turn on and off. So you should be able to do that and check for anything False in order to see if any thread is finished.