flask flash
{% with messages = get_flashed_messages(with_categories=true) %} {% if messages %} {% for category, message in messages %} <div class="alert alert-{{ category }} alert-dismissible fade show" role="alert"> <span>{{ message }}</span> <button type="button" class="close" data-dismiss="alert" aria-label="Close"> <span aria-hidden="true">×</span> </button> </div> {% endfor %} {% endif %} {% endwith %}