Rename id variable and mentions to id_

examples/tutorial/flaskr/templates/blog/index.html

@@ -16,7 +16,7 @@
           <div class="about">by {{ post['username'] }} on {{ post['created'].strftime('%Y-%m-%d') }}</div>
         </div>
         {% if g.user['id'] == post['author_id'] %}
-          <a class="action" href="{{ url_for('blog.update', id=post['id']) }}">Edit</a>
+          <a class="action" href="{{ url_for('blog.update', id_=post['id']) }}">Edit</a>
         {% endif %}
       </header>
       <p class="body">{{ post['body'] }}</p>