On May 21, 12:13 pm, Roy Smith <[EMAIL PROTECTED]> wrote: > In article > <[EMAIL PROTECTED]>, > > bukzor <[EMAIL PROTECTED]> wrote: > > Does anyone have a pythonic way to check if a process is dead, given > > the pid? > > > This is the function I'm using is quite OS dependent. A good candidate > > might be "try: kill(pid)", since it throws an exception if the pid is > > dead, but that sends a signal which might interfere with the process. > > > Thanks. > > --Buck > > The canonical way is to do kill(pid, 0). If it doesn't throw, the process > exists. No actual signal is sent to the process either way. > > Of course, the process could exit immediately after the kill() call, so by > the time you find out it's alive, it's dead. Such is life.
Thanks! That's exactly what I was looking for. A little more background: "If sig is 0 (the null signal), error checking is performed but no signal is actually sent. The null signal can be used to check the validity of pid." Taken from : http://www.opengroup.org/onlinepubs/009695399/functions/kill.html -- http://mail.python.org/mailman/listinfo/python-list
