Made the i18n url a fixed string, in Django 1.4 the named urlpattern does not exist yet. This looks like the best way to support all versions. Once 1.4 is deprecated we make this a revserse again.

dpaste/templates/dpaste/about.html

@@ -17,9 +17,9 @@
         <a href="https://github.com/bartTC/dpaste">github.com/bartTC/dpaste</a>
     </p>
 
-<form action="{% url 'set_language' %}" method="post">
-    {% csrf_token %}
+    <form action="/i18n/setlang/" method="post">
         Change the language:
+        {% csrf_token %}
         <input name="next" type="hidden" value="{{ redirect_to }}" />
         <select name="language">
             {% get_language_info_list for LANGUAGES as languages %}
@@ -30,7 +30,7 @@
             {% endfor %}
         </select>
         <input type="submit" value="Go" />
-</form>
+    </form>
 
     <h3>API</h3>