Revert all leading /2009 from URL Patters since this is now handled in Apache on server.
{% extends "base.html" %}
{% block title %}Change Your Username{% endblock %}
{% block content %}
<h1>Change your username</h1>
<form action="{% url kiwipycon_username %}"
method="post">
<table class="kiwipycon-default">
<tr>
<td class="label">
<label for="id_username">New username:</label>
</td>
<td>
{{ form.username.errors }}
{{ form.username }}
</td>
</tr>
<tr>
<td></td>
<td>
<input class="button left"
type="submit"
value="Save username" />
</td>
</tr>
</table>
</form>
{% endblock %}