added twelfth Python tip

Author: learnbyexample

README.md

@@ -56,6 +56,7 @@ I'm addicted to reading fantasy/sci-fi books, so I have a [blog](https://learnby
 
 ## Tips
 
+* [Python tip 12: negate a regex grouping](https://learnbyexample.github.io/tips/python-tip-12/)
 * [Vim tip 10: Undo and Redo](https://learnbyexample.github.io/tips/vim-tip-10/)
 * [CLI tip 11: longest line length](https://learnbyexample.github.io/tips/cli-tip-11/)
 * [Python tip 11: capture external command output](https://learnbyexample.github.io/tips/python-tip-11/)

atom.xml

@@ -426,6 +426,10 @@
         <loc>https://learnbyexample.github.io/tips/python-tip-11/</loc>
         <lastmod>2022-06-01</lastmod>
     </url>
+    <url>
+        <loc>https://learnbyexample.github.io/tips/python-tip-12/</loc>
+        <lastmod>2022-06-22</lastmod>
+    </url>
     <url>
         <loc>https://learnbyexample.github.io/tips/python-tip-2/</loc>
         <lastmod>2022-05-16</lastmod>

sitemap.xml

@@ -349,7 +349,7 @@
 
                 <a href="https:&#x2F;&#x2F;learnbyexample.github.io&#x2F;tags&#x2F;python&#x2F;">
                     python
-                    <span class="count">30</span>
+                    <span class="count">31</span>
                 </a>
 
                 <a href="https:&#x2F;&#x2F;learnbyexample.github.io&#x2F;tags&#x2F;re-module&#x2F;">
@@ -404,7 +404,7 @@
 
                 <a href="https:&#x2F;&#x2F;learnbyexample.github.io&#x2F;tags&#x2F;tip&#x2F;">
                     tip
-                    <span class="count">32</span>
+                    <span class="count">33</span>
                 </a>
 
                 <a href="https:&#x2F;&#x2F;learnbyexample.github.io&#x2F;tags&#x2F;tutorial&#x2F;">

tags/index.html

@@ -124,6 +124,13 @@
     <div class="taxonomy">
         <h2>python</h2>
 
+            <div class="taxonomy__item">
+                <span class="taxonomy__item__time">2022-06-22</span>
+                <span class="taxonomy__item__title">
+                    <a href="https:&#x2F;&#x2F;learnbyexample.github.io&#x2F;tips&#x2F;python-tip-12&#x2F;">Python tip 12: negate a regex grouping</a>
+                </span>
+            </div>
+        
             <div class="taxonomy__item">
                 <span class="taxonomy__item__time">2022-06-01</span>
                 <span class="taxonomy__item__title">

tags/python/index.html

@@ -124,6 +124,13 @@
     <div class="taxonomy">
         <h2>tip</h2>
 
+            <div class="taxonomy__item">
+                <span class="taxonomy__item__time">2022-06-22</span>
+                <span class="taxonomy__item__title">
+                    <a href="https:&#x2F;&#x2F;learnbyexample.github.io&#x2F;tips&#x2F;python-tip-12&#x2F;">Python tip 12: negate a regex grouping</a>
+                </span>
+            </div>
+        
             <div class="taxonomy__item">
                 <span class="taxonomy__item__time">2022-06-15</span>
                 <span class="taxonomy__item__title">

tags/tip/index.html

@@ -126,6 +126,7 @@ <h1 id="list-of-all-tips-bulb"><p style="color: #c05b4d">List of all tips 💡</
 <p>This page links to tips about <u><a href="https://learnbyexample.github.io/tips/#python">Python</a></u>, <u><a href="https://learnbyexample.github.io/tips/#command-line-tools">Command line tools</a></u> and <u><a href="https://learnbyexample.github.io/tips/#vim">Vim</a></u></p>
 <h2 id="python-snake"><p style="color: #ff6600"><a name="python"></a>Python 🐍</h2>
 <ul>
+<li><a href="https://learnbyexample.github.io/tips/python-tip-12/">Python tip 12: negate a regex grouping</a></li>
 <li><a href="https://learnbyexample.github.io/tips/python-tip-11/">Python tip 11: capture external command output</a></li>
 <li><a href="https://learnbyexample.github.io/tips/python-tip-10/">Python tip 10: removeprefix and removesuffix string methods</a></li>
 <li><a href="https://learnbyexample.github.io/tips/python-tip-9/">Python tip 9: applying set-like operations for dictionaries</a></li>