Add scope for all the URLs and adjust the formatting and indentation.
{% extends "base.html" %}
{% block title %}Edit Registration{% endblock %}
{% block content %}
<h1>Edit Registration</h1>
{% include '_errors.html' %}
<form action="{% url scipycon_edit_registration id params.scope %}"
method="post">
<fieldset>
<legend>Edit Registration</legend>
<table class="scipycon-default">
{{ form }}
</table>
<button class="button left"
type="submit">
Save Changes
</button>
</fieldset>
</form>
{% endblock content %}