| # 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. |
| # ============================================================================== |
| """Tools to help with the TensorFlow 2.0 transition. |
| |
| This module is meant for TensorFlow internal implementation, not for users of |
| the TensorFlow library. For that see tf.compat instead. |
| """ |
| |
| from __future__ import absolute_import |
| from __future__ import division |
| from __future__ import print_function |
| |
| import os |
| |
| |
| _force_enable = None |
| |
| |
| def enable(): |
| """Enables v2 behaviors.""" |
| global _force_enable |
| _force_enable = True |
| |
| |
| def disable(): |
| """Disables v2 behaviors.""" |
| global _force_enable |
| _force_enable = False |
| |
| |
| def enabled(): |
| """Returns True iff TensorFlow 2.0 behavior should be enabled.""" |
| if _force_enable is None: |
| return os.getenv("TF2_BEHAVIOR", "0") != "0" |
| else: |
| return _force_enable |