python线程Example

# -*- coding:utf-8 -*-
import time
import pymongo
from threading import Thread
from Queue import Queue

start  = time.time()

f = open("ids.txt")
q = Queue()

def work():
    connection=pymongo.Connection('127.0.0.1',27017)
    db = connection.pps_legual_cache
    c = db.episode1
    while 1:
        line = q.get()
        print c.find_one(int(line))
        q.task_done()

for i in range(5):
    t = Thread(target=work)
    t.setDaemon(True)
    t.start()


for line in f.readlines():
    q.put(int(line))

q.join()

end = time.time()

print end-start