# -*- coding: utf-8 -*-
#
# Copyright (C) 2013 Red Hat, Inc.
#
# Authors:
# Thomas Woerner <twoerner@redhat.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#

from collections import OrderedDict

class LastUpdatedOrderedDict(OrderedDict):
    """ Ordered dictionary that stores items in the order they were last
    set or added """

    def __setitem__(self, key, value):
        # delete entry if it exists
        if key in self:
            del self[key]
        # add the new entry as last item
        OrderedDict.__setitem__(self, key, value)
