title: Can't import keras
body: <p>I can't run keras; when I try to import keras from a Jupyter notebook I first see </p>
  
  <pre><code>Using TensorFlow backend.
  </code></pre>
  
  <p>in red, but then the kernel crashes and I see a prompt with:</p>
  
  <pre><code>Kernel Restarting
  The kernel appears to have died. It will restart automatically.
  </code></pre>
  
  <p>If I try to run it directly with python (so I have a file called run.py that just imports keras) I get:</p>
  
  <pre><code>Using TensorFlow backend.
  Illegal instruction: 4
  </code></pre>
  
  <p>I am on High Sierra (10.13.2) on a mid 2012 Macbook with a 2,9 GHz Intel Core i7 processor. I have python 3.6 installed on the latest conda and I am also running the latest versions of keras and tensorflow. </p>
  
  <p>Thanks for any help!</p>