Threading

[Matt]

I am using this example for threading in Python:

from threading import Thread

def start_test( address, port ):
    print address, port
    sleep(1)

for line in big_list:
    t = Thread(target=start_test, args=(line, 80))
    t.start()

But say big_list has thousands of items and I only want to have a
maximum of 10 threads open.  How do work my way through the big_list
with only 10 threads for example?