title: Google Colab is not downloading files anymore
body: <p>I'm using Google Colab to work with images. Basically, the output consists in 700 images in <code>.jpg</code> format, stored with the format <code>output_0.jpg</code>, <code>output_1.jpg</code> and so on. The images are stored correctly in Google virtual hard disc but I can't download them on my hard disc.
  Code as follows:</p>
  
  <pre><code>for i in range(1000):
      try:
          files.download('output_{}.jpg'.format(i))
      except:
          continue
  </code></pre>
  
  <p>The cell starts running but gets stuck running with no errors (some days ago was working fine). Automatic file download and cookies are allowed in Chrome preferences.
  Can someone help me please? thanks a lot.</p>