python 守护线程和loggin模块 

 1 #coding=utf8
 2 
 3 import threading
 4 import time
 5 import logging
 6 
 7 logging.basicConfig(
 8     level=logging.DEBUG,
 9     format='[%(levelname)s]-(%(threadName)s)-%(message)s',
10 )
11 
12 def worker():
13     logging.debug('starting')
14     #print 'I am worker:'
15     time.sleep(2)
16     logging.debug('ending')
17 
18 
19 def my_service():
20     logging.debug('starting')
21     #print 'I am service:'
22     time.sleep(1)
23     logging.debug('ending')
24 
25 t = threading.Thread(name='worker-by leon',target=worker)
26 t.setDaemon(True) #False阻塞主进程，True不阻塞
27 t.start()
28 t.join(3) #等待守护线程退出,join的时间大于线程睡眠时间，所以isAlive()的值为False
29 
30 
31 d = threading.Thread(name='service-by leon', target=my_service)
32 d.setDaemon(True)
33 d.start()
34 
35 logging.debug(t.isAlive())
36 d.join()
37 #不显示ending因为worker守护线程结束之前，主线程或其他线程已经退出
38 '''
39 显示
40 [DEBUG]-(worker-by leon)-starting
41 [DEBUG]-(worker-by leon)-ending
42 [DEBUG]-(MainThread)-False
43 [DEBUG]-(service-by leon)-starting
44 [DEBUG]-(service-by leon)-ending
45 '''

 

posted @ 2013-01-04 14:29  践道者  阅读(1149)  评论(0)    收藏  举报