How do I check if a pid is running?

[moray.grieve]

You could do a system call on unix to get a list of all pids belonging to
yourself i.e.

lines = os.popen( "ps -u %s -o pid,comm"%(getpass.getuser()) ).readlines()
pids = []
for line in lines:
    pids.append(string.atoi(string.split(line)[0]))


You could then search through the list to see if the pid you are interested
is in there. I use this approach on both Solaris and Red Hat.

Cheers,
Moray Grieve