title: ImportError with importing keras
body: <p>I am trying to import keras it gives me an error <code>from tensorflow.python.ops import tensor_array_ops</code>. </p>
  
  <pre><code>&gt;&gt;&gt; import keras
  Using TensorFlow backend.
  Traceback (most recent call last):
    File "&lt;stdin&gt;", line 1, in &lt;module&gt;
    File "/home/ss/anaconda2/envs/kerasenv/lib/python2.7/site-packages/keras/__init__.py", line 2, in &lt;module&gt;
      from . import backend
    File "/home/ss/anaconda2/envs/kerasenv/lib/python2.7/site-packages/keras/backend/__init__.py", line 67, in &lt;module&gt;
      from .tensorflow_backend import *
    File "/home/ss/anaconda2/envs/kerasenv/lib/python2.7/site-packages/keras/backend/tensorflow_backend.py", line 4, in &lt;module&gt;
      from tensorflow.python.ops import tensor_array_ops
  ImportError: cannot import name tensor_array_ops
  </code></pre>
  
  <p>I really appreciate if someone can help me to solve this error.
  Thanks.</p>