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这是一个创建于 4250 天前的主题，其中的信息可能已经有所发展或是发生改变。
import os, errno
def isExist(pid):
try:
os.kill(pid, 0)
return True
except OSError, e:
if e.errno == errno.ESRCH:
return False
else
return True
http://linux.die.net/man/2/kill
1，If sig is 0, then no signal is sent, but error checking is still performed; this can be used to check for the existence of a process ID or process group ID.
2，ESRCH
The pid or process group does not exist. Note that an existing process might be a zombie, a process which already committed termination, but has not yet been wait(2)ed for
def isExist(pid):
try:
os.kill(pid, 0)
return True
except OSError, e:
if e.errno == errno.ESRCH:
return False
else
return True
http://linux.die.net/man/2/kill
1，If sig is 0, then no signal is sent, but error checking is still performed; this can be used to check for the existence of a process ID or process group ID.
2，ESRCH
The pid or process group does not exist. Note that an existing process might be a zombie, a process which already committed termination, but has not yet been wait(2)ed for
第 1 条附言 · 2013-04-12 09:24:23 +08:00
主题中的代码格式乱的，贴个gist：https://gist.github.com/pdu/5368554/raw/d155ae790c502c99b6397e31a7fd55dc3ad88cff/isPidExist.py
<script src="https://gist.github.com/pdu/5368554.js"></script>
<script src="https://gist.github.com/pdu/5368554.js"></script>
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