title: python os.system command line return value back to python
body: <p>I am calling a second python script that is written for the command line from within my script using </p>
  
  <pre><code>os.system('insert command line arguments here')
  </code></pre>
  
  <p>this works fine and runs the second script in the terminal. I would like this not to be output in the terminal and simply have access to the lists and variables that are being printed. Is this possible using os.system? Or, do I need to use something else?</p>