title: Raspberry PI import tensorflow Segmentation fault
body: <p>I have installed tensorflow on a Raspberry PI 3 and it worked correctly (following these <a href="https://hackaday.com/2018/05/18/five-steps-to-tensorflow-on-the-raspberry-pi/" rel="nofollow noreferrer">instructions</a>). After installing a number of libraries that I needed for loading a Keras model trained on my PC (numpy, scipy etc) I have observed the following error while importing tensorflow:</p>
  
  <pre><code>Runtime Error: module compiled against API version 0xc but this version of numpy is 0xa
  Segmentation fault
  </code></pre>
  
  <p>I have updated all the necessary libraries, and importing any of them doesn't result in an error in a Python 3 script. Also the error is not keras related, because the statement <code>import tensorflow</code> raises an error no matter what follows after it. Should I uninstall tensorflow and start all over again?</p>