programs exit?

[Mark McEahern]

maximilianscherr wrote:
> how can i know if a program i started from the script has exitted?
> 
> by using spwanv() to start it? how exactly do i get to know this?

Short answer:  os.waitpid()

Here's an example:

import os

def spawnCommand(command, args):
    """Spawn the command and return the process id."""
    pid = os.spawnv(os.P_NOWAIT, command, args)
    return pid

command = "ls"
args = ['foo']
pid = spawnCommand(command, args) # args is a list
result = os.waitpid(pid, 0)

// mark