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research/object_detection/utils/context_manager.py
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pkulzc
Object detection changes: (#7208)
15 июл 2019, 19:50
Не верифицирован
15 июл 2019, 19:50
fe748d4
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# Copyright 2018 The TensorFlow Authors. All Rights Reserved. # # 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. # ============================================================================== """Python context management helper.""" from __future__ import absolute_import from __future__ import division from __future__ import print_function class IdentityContextManager(object): """Returns an identity context manager that does nothing. This is helpful in setting up conditional `with` statement as below: with slim.arg_scope(x) if use_slim_scope else IdentityContextManager(): do_stuff() """ def __enter__(self): return None def __exit__(self, exec_type, exec_value, traceback): del exec_type del exec_value del traceback return False