title: Decoding error when using pickle in python
body: <p>When I run the code:</p>
  <pre><code>import pickle
  ofname = open(r&quot;ch05\dataset_small.pkl&quot;, 'rb')
  (x, y) = pickle.load(ofname)
  </code></pre>
  <p>The error I get when running the code above is:</p>
  <pre><code>'ascii' codec can't decode byte 0xac in position 6: ordinal not in range(128)
  </code></pre>
  <p>How do I fix this error ?</p>