def __repr__(self):
        return "<Requirements({})>".format(self.filename.name or "")
def add(self, dn, object_class=None, attributes=None):

        self.result = { 'dn' : '',
                        'referrals' : None,
                        'description' : 'success',
                        'result' : 0,
                        'message' : '',
                        'type' : 'addResponse'}

        # Check to see if the user exists in the directory
        try:
            index = self._find_user(dn)
        except StopIteration:
            # If we get here the user doesn't exist so continue
            # Create a entry object for the new user
            entry = {}
            entry['dn'] = dn
            entry['attributes'] = attributes
            if object_class != None:
                entry['attributes'].update( {'objectClass': object_class} )
        else:
            # User already exists
            self.result["description"] = "failure"
            self.result["result"] = 68
            self.result["message"] = \
                    "Error entryAlreadyExists for {0}".format(dn)
            return False

        # Add the user entry to the directory
        self.directory.append(entry)

        # Attempt to write changes to disk
        with open(DIRECTORY, 'w+') as f:
            f.write(str(self.directory))

        return True