title: I am following `learn python 3 the hard way` and in exercise 13 I messed up
body: <p>ok I am beginner to python
  and in exercise 13 of learn python 3 the hard way
  I was not able to make the code work by typing it
  so I copied the code and tried to run it but It still did not work
  here is the code</p>
  <pre><code>from sys import argv
  # read the WYSS section for how to run this
  script, first, second, third = argv
  
  print(&quot;The script is called:&quot;, script)
  print(&quot;Your first variable is:&quot;, first)
  print(&quot;Your second variable is:&quot;, second)
  print(&quot;Your third variable is:&quot;, third)`
  </code></pre>
  <p>and the error was</p>
  <pre><code>Traceback (most recent call last):
  File &quot;d:\projects\first\app.py&quot;, line 114, in &lt;module&gt;
  script, first, second, third = argv
  ValueError: not enough values to unpack (expected 4, got 1)`
  </code></pre>
  <p>(it is on line 114 cuz every code I wrote from this book was commented above)</p>
  <p>I thought something was wrong with my python extention or whatever
  so i used repl.it and I got the same error
  so what do i need to know for running the code?
  or the pastebin like is here <a href="https://pastebin.ubuntu.com/p/b9kKNbZ5hF/" rel="nofollow noreferrer">https://pastebin.ubuntu.com/p/b9kKNbZ5hF/</a></p>