code: def group_name_from_info(self, group_info):
          
          try:
              name = group_info[1][self.name_attr][0]
          except (KeyError, IndexError):
              name = None
  
          return name
docs: Given the (DN, attrs) 2-tuple of an LDAP group, this returns the name of
          the Django group. This may return None to indicate that a particular
          LDAP group has no corresponding Django group.
  
          The base implementation returns the value of the cn attribute, or
          whichever attribute was given to __init__ in the name_attr
          parameter.