抛弃了ubuntu12.10 是由于 E40 0578mdc的显卡驱动不可用，本身笔记本2个小时的耗电，结果变成了20分钟，并且笔记本温度可以当暖宝宝

重新换回12.04后，发现我所使用的python存在bug

bug测试代码

#!/usr/bin/python

import os

import thread

import threading

import time

def t():

threading.currentThread() # Populate threading._active with a DummyThread

time.sleep(3)

thread.start_new_thread(t, ())

time.sleep(1)

pid = os.fork()

if pid == 0:

os._exit(0)

os.waitpid(pid, 0)

输出结果

songtao@ThinkPad:~$ python bad.py

Exception AttributeError: AttributeError("'_DummyThread' object has no attribute '_Thread__block'",) in <module 'threading' from '/usr/lib/python2.7/threading.py'> ignored

解决办法：

修改 /usr/lib/python2.7/threading.py 文件

参照官方

http://hg.python.org/cpython/rev/ab9d6c4907e7

--- a/Lib/threading.py

+++ b/Lib/threading.py

@@ -605,6 +605,10 @@ class Thread(_Verbose):

pass

def __stop(self):

+ # DummyThreads delete self.__block, but they have no waiters to

+ # notify anyway (join() is forbidden on them).

+ if not hasattr(self, '_Thread__block'):

+ return

self.__block.acquire()

self.__stopped = True

self.__block.notify_all()