{%if hasError %} <p><strong><font color="red"> {{hasError}} </font></strong></p> {%endif%}
<h1>Mon formulaire</h1>
{% with messages = get_flashed_messages() %}
{% if messages %}
<br>
{% for message in messages %}
{{ message }}<br>
{% endfor %}<br>
{% endif %}
{% endwith %}

<form method="POST" action="{{url_for('after_choix_dragon')}}">
  {%if rows %}
  <label>Les dragons</label><br>
  <select type="text" name="prenom">
    {% for row in rows %}
    <option value="{{row[0]}}">{{row[0]}}</option>
    {% endfor %}
  </select><br><br>
  {%endif%}
  <input type="submit" value="Soumettre" />
</form>