title: read whole file at once
body: <p>I need to read whole source data from file something.zip (not uncompress it)</p>
  
  <p>I tried </p>
  
  <pre><code>f = open('file.zip')
  s = f.read()
  f.close()
  return s
  </code></pre>
  
  <p>but it returns only few bytes and not whole source data. Any idea how to achieve it? Thanks </p>