title: Getting Python System Calls as string results
body: <p>I'd like to use <code>os.system("md5sum myFile")</code> and have the result returned from os.system instead of just runned in a subshell where it's echoed.</p>
  
  <p>In short I'd like to do this:</p>
  
  <pre><code>resultMD5 = os.system("md5sum myFile")
  </code></pre>
  
  <p>And only have the md5sum in resultMD5 and not echoed.</p>