使用python multithreading.Pool 做多线程，遭遇bug3770，如何解？
Python版本：2.7.3
系统版本：centos release 4.3
出错语句：pool = Pool(4)
错误信息：ImportError: This platform lacks a functioning sem_open implementation, therefore, the required synchronization primitives needed will not function, see issue 3770
简单来说是python不支持操作系统中关于共享信号量的设置。看了些别人的帖子，也看了python官网对这个bug的解释，但是都解决不了现在的问题。
操作系统改不了，有什么方法能绕过这个问题呀，求明白人支招~~~
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Are you going to do multi-threading or multi-processing? I remember that the pool seems to be multi-process
Attached is the standard answer:
Cause: /dev/shm is not mounted; something needs to be written during python installation to enable sem_open
Solution: (root permission is required; the following command is executed with the root account)
Modify /etc/fstab and add: tmpfs /dev/shm tmpfs defaults 0 0
mount /dev/shm
chmod 777 /dev/shm
Reinstall python (must reinstall, there is no way, check whether the device exists during installation, if it exists, you can use sem_open)