Andreas Thomas Andreas Thomas - 1 year ago 71
Python Question

How do you check in Linux with Python if a process is still running?

The only nice way I've found is:

import sys
import os

os.kill(int(sys.argv[1]), 0)
print "Running"
print "Not running"


But is this reliable? Does it work with every process and every distribution?

Answer Source

Mark's answer is the way to go, after all, that's why the /proc file system is there. For something a little more copy/pasteable:

 >>> import os.path
 >>> os.path.exists("/proc/0")
 >>> os.path.exists("/proc/12")