System information

• Have I written custom code (as opposed to using a stock example script provided in TensorFlow): Yes
• OS Platform and Distribution (e.g., Linux Ubuntu 16.04): Ubuntu 16.04
• TensorFlow installed from (source or binary): Binary, tf-nightly
• TensorFlow version (use command below): 1.7.0.dev20180214, git version b2a0f1c
• Python version: 2.7.12
• Bazel version (if compiling from source): N/A
• GCC/Compiler version (if compiling from source): N/A
• CUDA/cuDNN version: N/A
• GPU model and memory: N/A
• Exact command to reproduce:

import tensorflow as tf
from tensorflow.contrib.image.ops import gen_distort_image_ops
from tensorflow.python.framework import tensor_util
tensor_util.constant_value(tf.convert_to_tensor([1., 1.]))

Describe the problem

When I run the program above, I get the warning

/home/reedwm/venvs/tfnightlycpu/local/lib/python2.7/site-packages/tensorflow/python/framework/tensor_util.py:560: DeprecationWarning: The binary mode of fromstring is deprecated, as it behaves surprisingly on unicode inputs. Use frombuffer instead
  return np.fromstring(tensor.tensor_content, dtype=dtype).reshape(shape)

This may not seem so bad, but when running tf_cnn_benchmarks, I get hundreds of such warnings.

What's very strange is that if I comment the line from tensorflow.contrib.image.ops import gen_distort_image_ops, I don't get the warning.

This is the same issue as tensorpack/tensorpack#641. @yaroslavvb, did you file a TensorFlow bug for this? If so, this can be marked as a duplicate.

Not really sure who to triage this to. /CC @mrry, can you address this or retriage?