Python：线程执行时间

Question

是否可以在Python中设置线程的执行时间。比如，如果该时间段完成，我可以停止该线程并创建它的新实例。

Answer 1

from multiprocessing import Pool

def f(x):
    return x*x

if __name__ == '__main__':
    pool = Pool(processes=4)              # start 4 worker processes

    # print "[0, 1, 4,..., 81]"
    print pool.map(f, range(10))

    # print same numbers in arbitrary order
    for i in pool.imap_unordered(f, range(10)):
        print i

    # evaluate "f(20)" asynchronously
    res = pool.apply_async(f, (20,))      # runs in *only* one process
    print res.get(timeout=1)              # prints "400"

来自多处理docs。