Invoking External Programs - io.popen() - iNTERFACEWARE Help Center Page 2 -
Python Execute Program or Call a System Command - Spark By {Examples}
Python Subprocess: Run External Commands • Python Land Tutorial
Mike Driscoll on Twitter: "#Python's `subprocess` module also lets you read stdout and stderr during a long running process. One common method of accomplishing this is to use `subprocess.Popen` and set `stdout=subprocess .PIPE`