process

Python: Getting live output from subprocess using poll

Using subprocess.Popen, subprocess.call, or subprocess.check_output will all invoke a process using Python, but if you want live output coming from stdout you need use subprocess.Popen in tandem with the Popen.poll method. In this article I will show how to invoke a process from Python and show  stdout live without waiting for the process to complete.  Python: Getting live output from subprocess using poll

Postfix: Forcing a reprocess of the pending queue

Postfix is a open source mail transfer agent.  If communication the upstream mail relay is disrupted, email will build up in the pending mail queue until the root cause is resolved.