Python Run External Command And Get Output On Screen or In Variable

in Categories , , last updated February 20, 2018

I am a new Python user. I wanted to run a Linux or Unix external program. For example, I would like to call an external program called /bin/date with my python script and get the output on screen or store in a variable. How do I display such output and exit status (return code) of /bin/date program using a Python script?