Check if a process is running using Python on Linux [duplicate]

Answer 1

I know this is old, but I've used this and it seems to work; you can do a quick adaptation to convert from process name to process id:

 try:
    if len( os.popen( "ps -aef | grep -i 'myprocess' | grep -v 'grep' | awk '{ print $3 }'" ).read().strip().split( '\n' ) ) > 1:
        raise SystemExit(0)
 except Exception, e:
        raise e