title: Cut command in Python via subprocess module
body: <p>How to run the following line ?</p>
  
  <pre><code>subprocess.Popen(('cut', '-d', '" "', '-f', '1'), stdin=out_2.stdout, stdout=subprocess.PIPE)
  </code></pre>
  
  <p>It returns this error:</p>
  
  <pre><code>cut: the delimiter must be a single character
  </code></pre>