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@@ -1988,6 +1988,7 @@ Struct
 ------
 * **Module that performs conversions between a sequence of numbers and a bytes object.**
 * **System’s type sizes, byte order, and alignment rules are used by default.**
+* **The only exception being types float and double, that always take up 4 and 8 bytes.**
 
 ```python
 from struct import pack, unpack
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 <div><h2 id="struct"><a href="#struct" name="struct">#</a>Struct</h2><ul>
 <li><strong>Module that performs conversions between a sequence of numbers and a bytes object.</strong></li>
 <li><strong>System’s type sizes, byte order, and alignment rules are used by default.</strong></li>
+<li><strong>The only exception being types float and double, that always take up 4 and 8 bytes.</strong></li>
 </ul><pre><code class="python language-python hljs"><span class="hljs-keyword">from</span> struct <span class="hljs-keyword">import</span> pack, unpack
 &lt;bytes&gt; = pack(<span class="hljs-string">'&lt;format&gt;'</span>, &lt;el_1&gt; [, ...])  <span class="hljs-comment"># Packages arguments into bytes object.</span>
 &lt;tuple&gt; = unpack(<span class="hljs-string">'&lt;format&gt;'</span>, &lt;bytes&gt;)       <span class="hljs-comment"># Use iter_unpack() for iterator of tuples.</span>