import threadpool
import time
def sayhello(str):
    print ("Hello ",str)
    time.sleep(2)

name_list =['xiaozi','aa','bb','cc']
start_time = time.time()
pool = threadpool.ThreadPool(10)
requests = threadpool.makeRequests(sayhello, name_list) #单个参数的时候调用
[pool.putRequest(req) for req in requests]
pool.wait()
print ('%d second'% (time.time()-start_time))