System information Have I written custom code (as opposed to using a stock example script provided in TensorFlow): custom, yes OS Platform and Distribution (e.g., Linux Ubuntu 16.04): Linux Ubuntu 14.04 TensorFlow installed from (source or binary): from pip TensorFlow version (use command below): ('v1.2.0-5-g435cdfc', '1.2.1') Python version: python2.7 Bazel version (if compiling from source): - C