# Copyright (C) 2015 Canonical Ltd.
# Copyright (C) 2015 Cloudbase Solutions Srl
#
#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.

__all__ = ('abstractclassmethod', )


class abstractclassmethod(classmethod):
    """A backport for abc.abstractclassmethod from Python 3."""

    __isabstractmethod__ = True

    def __init__(self, func):
        func.__isabstractmethod__ = True
        super(abstractclassmethod, self).__init__(func)