How can I tell when the threads that I spawn are done in python

[ogerchikov at gmail.com]

Hi,

In my python scripts, I create thread likes this:
   // for example threadCount is 10
     for j in range(int(threadCount)):
                t = MyThread()
                t.start()

     // wait all the threads are done
    doSomething()

My question is how can i tell when all the threads are done before I
call doSomething()?

Thank you.