title: read a binary file (python)
body: <p>I cant read a file, and I dont understand why:</p>
  
  <pre><code>f = open("test/test.pdf", "r")
  data = list(f.read())
  print data
  </code></pre>
  
  <p>Returns : <code>[]</code></p>
  
  <p>I would like to open a PDF, and extract every bytes, and put it in a List.</p>
  
  <p>What's wrong with my code ? :(</p>
  
  <p>Thanks,</p>