tensorflow: Cannot import tensor_util in TF 1.14.

Please make sure that this is a bug. As per our GitHub Policy, we only address code/doc bugs, performance issues, feature requests and build/installation issues on GitHub. tag:bug_template

System information

• Have I written custom code (as opposed to using a stock example script provided in TensorFlow): No
• OS Platform and Distribution (e.g., Linux Ubuntu 16.04): Ubuntu 18.04
• Mobile device (e.g. iPhone 8, Pixel 2, Samsung Galaxy) if the issue happens on mobile device:
• TensorFlow installed from (source or binary):
• TensorFlow version (use command below): 1.14.0rc1
• Python version: 3.5
• Bazel version (if compiling from source): 0.25.2
• GCC/Compiler version (if compiling from source): 7.4.0
• CUDA/cuDNN version: 10.1
• GPU model and memory: TITAN V

You can collect some of this information using our environment capture script You can also obtain the TensorFlow version with: 1. TF 1.0: python -c "import tensorflow as tf; print(tf.GIT_VERSION, tf.VERSION)" 2. TF 2.0: python -c "import tensorflow as tf; print(tf.version.GIT_VERSION, tf.version.VERSION)"

Describe the current behavior

Cannot import tensor_util.

$ python
Python 3.6.8 (default, Jan 14 2019, 11:02:34) 
[GCC 8.0.1 20180414 (experimental) [trunk revision 259383]] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from tensorflow.python.framework import tensor_util
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: cannot import name 'tensor_util'

Describe the expected behavior

We can import tensor_util in TF 1.13.

Code to reproduce the issue

See above.

Other info / logs Include any logs or source code that would be helpful to diagnose the problem. If including tracebacks, please include the full traceback. Large logs and files should be attached.