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Diffstat (limited to 'netmodel/util/meta.py')
-rw-r--r-- | netmodel/util/meta.py | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/netmodel/util/meta.py b/netmodel/util/meta.py new file mode 100644 index 00000000..355beb7e --- /dev/null +++ b/netmodel/util/meta.py @@ -0,0 +1,30 @@ +#!/usr/bin/env python3 +# -*- coding: utf-8 -*- +# +# Copyright (c) 2017 Cisco and/or its affiliates. +# +# 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. +# + +# http://stackoverflow.com/questions/5881873/python-find-all-classes-which-inherit-from-this-one + +def inheritors(klass): + subclasses = set() + work = [klass] + while work: + parent = work.pop() + for child in parent.__subclasses__(): + if child not in subclasses: + subclasses.add(child) + work.append(child) + return subclasses |