How to compare a list and directory to check for missing files?
<p>I have a folder <code>/image/</code> that has the following files: 
<code>1.jpg, 2.jpg, 5.jpg</code></p>

<p>And a list:</p>

<pre><code>img = [1.jpg, 2.jpg, 3.jpg, 4.jpg, 5.jpg]
</code></pre>

<p>How do I compare the list and the directory contents to find out that <code>3.jpg</code> and <code>4.jpg</code> files are missing?</p>

<p>I searched online but the only solutions I found show how to compare list to list or directory to directory.</p>
