title: ValueError: not enough values to unpack (expected 4, got 1)
body: <p>The error is at <code>script, first, second, third = argv</code>. I would like to understand why I am getting the error and how to fix it.</p>
  <pre><code>from sys import argv
  
  script, first, second, third = argv
  print(&quot;The script is called: &quot;, script)
  print(&quot;The first variable is: &quot;, first)
  print(&quot;The second variable is: &quot;, second)
  print(&quot;The third variable is: &quot;, third)
  </code></pre>