Excerpt from Bits from the Debian Systems Administration Team - 26 Mar 2013 :

 == Account Management ==

 We have begun a rewrite[5] of userdir-ldap and userdir-ldap-cgi using
 django[6] and django-ldapdb[7]. The intent is to modernize the code base
 by leveraging the components that a framework offers (an orm with
 validators, etc.) while providing users with some additional features.
 The plan is to run the old and the new instance in paralell for a while.
 Also the web frontend (in its current form) will need face-lift. Your
 participation with this rewrite is very welcome.

See also