How do I know when all threads are done?

[Zerge]

I can launch threads just fine, but then I have to do a time.sleep(n)
so the main thread from which they where launched will wait for all
the threads to return.

How can I detect when all threads are done and then return control to
the main threads?

Thanks for your help

[John Nagle]

Re: How do I know when all threads are done?

Zerge wrote:

I can launch threads just fine, but then I have to do a time.sleep(n)
so the main thread from which they where launched will wait for all
the threads to return.
>
How can I detect when all threads are done and then return control to
the main threads?
>
Thanks for your help

Use "join".

John Nagle

[Christian Heimes]

Re: How do I know when all threads are done?

Zerge schrieb:

I can launch threads just fine, but then I have to do a time.sleep(n)
so the main thread from which they where launched will wait for all
the threads to return.
>
How can I detect when all threads are done and then return control to
the main threads?

import threading

threads = []

threads.append( threading.Threa d(...))
threads.append( threading.Threa d(...))
threads.append( threading.Threa d(...))

for thread in threads:
thread.start()

# now all threads are running, some might already be done

for thread in threads:
thread.join()

# here all threads are done

Christian