View Full Version : Python start process and later wait for it

June 8th, 2010, 06:52 AM
Hi, I am trying to a program from python to run in the background and then do some computations in the parent, but at some point I want to wait for the child. I tried using subprocess and os modules but no luck. Any ideas?

Thank You!

June 8th, 2010, 07:49 AM
This isn't really my area of expertise, but you could create a thread and run the child within it synchronously. Then join on the thread when you need to wait.

June 8th, 2010, 10:23 AM
The approach depends on whether you need both processes to talk to one another and whether you need both processes to be of the same or a different program. Have you considered the threading module?