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#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You 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.
#
import uuid
def inherit_doc(cls):
for name, func in vars(cls).items():
# only inherit docstring for public functions
if name.startswith("_"):
continue
if not func.__doc__:
for parent in cls.__bases__:
parent_func = getattr(parent, name, None)
if parent_func and getattr(parent_func, "__doc__", None):
func.__doc__ = parent_func.__doc__
break
return cls
class Identifiable(object):
"""
Object with a unique ID.
"""
def __init__(self):
#: A unique id for the object. The default implementation
#: concatenates the class name, "-", and 8 random hex chars.
self.uid = type(self).__name__ + "-" + uuid.uuid4().hex[:8]
def __repr__(self):
return self.uid
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