{% with messages = get_flashed_messages(with_categories=true) %} {% if messages %} {% for category, message in messages %} {% endfor %} {% endif %} {% endwith %}

{{ form.hidden_tag() }}

{{ form.username.label }} {{ form.username(class="form-control") }}

{{ form.password.label }} {{ form.password(class="form-control") }}

{{ form.submit(class="btn") }}