Ratko schrieb: > Hi all, > > I have a python gui app that launches multiple applications using > subprocess.Popen class and prints their output in the gui (using > PIPEs, threads and wxPython). Everything works great but the problem > is that some applications should run in the background (ie they don't > close when the gui closes) so next time when you start the gui it will > not have a handle on those processes that are still running and > therefore won't be able to print their output. > > So, I was wondering if there is any way to "preserve" the Popen object > of those background processes and reload them when the gui is > restarted? Ideally I would like to have the whole Popen object > preserved but I could also get by with just the Popen.stdout file > object. I can save the Popen.stdout.fileno() integer because that's > what I use in os.read() to read the output anyway but that doesn't > work. > > I have doubts that this could even conceptually work but I thought I'd > try asking anyway. I don't have a full understanding of how processes > and pipes work on the system level...
This doesn't work. What could work is that you create a python spawning process that lives as long as all it's popened childrend - and then let the gui connect to that, by whatever IPC means you like. E.g. pyro. Diez -- http://mail.python.org/mailman/listinfo/python-list
