tf.logging was for Logging and Summary Operations and in TF 2.0 it has been removed in favor of the open-source absl-py, and to make the main tf.* namespace has functions that will be used more often.
In TF.2 lesser used functions are gone or moved into sub-packages like tf.math
So instead of tf.logging you could:
tf_upgrade_v2will upgrade script and changestf.loggingtotf.compat.v1.logging- Python logging module can be used instead
- Import absl-py library