title: ImportError('Could not import PIL.Image. ' working with keras-ternsorflow
body: <p>I'm following some lectures from lynda.com about deep learning using Keras-TensorFlow in a PyCharmCE enviroment and they didn't have this problem.
  I get this error:</p>
  <blockquote>
  <p>raise ImportError('Could not import PIL.Image. '
  ImportError: Could not import PIL.Image. The use of <code>array_to_img</code> requires PIL.</p>
  </blockquote>
  <p>I have checked if others get the same error, but for me installing pillow using pip with the command <code>pip install Pillow</code> doesn't solve anything.</p>
  <blockquote>
  <p>MacBook-Pro-de-Rogelio:~ Rogelio$ pip install Pillow
  Requirement already satisfied: Pillow in ./anaconda3/lib/python3.6/site-packages
  MacBook-Pro-de-Rogelio:~ Rogelio$</p>
  </blockquote>
  <p>Any solution?</p>