from swift.common.ring.ring import RingData, Ring
from swift.common.ring.builder import RingBuilder

__all__ = [
    'RingData',
    'Ring',
    'RingBuilder',
]

@@ -1,28 +1,624 @@
+# Copyright (c) 2010-2017 OpenStack Foundation%0A#%0A# Licensed under the Apache License, Version 2.0 (the %22License%22);%0A# you may not use this file except in compliance with the License.%0A# You may obtain a copy of the License at%0A#%0A#    http://www.apache.org/licenses/LICENSE-2.0%0A#%0A# Unless required by applicable law or agreed to in writing, software%0A# distributed under the License is distributed on an %22AS IS%22 BASIS,%0A# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or%0A# implied.%0A# See the License for the specific language governing permissions and%0A# limitations under the License.%0A%0A%0A
 from swift.common.ring.ring 

Add license in swift/common/ring