title: Python using ZIP64 extensions when compressing large files
body: <p>I have a script that compresses the output files. The problem is that one of the files is over 4Gigs. How would I convert my script to use ZIP64 extensions instead of the standard zip?</p>
  <p>Here is how I am currently zipping:</p>
  <pre><code>try:
      import zlib
      compression = zipfile.ZIP_DEFLATED
  except:
      compression = zipfile.ZIP_STORED
  
  modes = { zipfile.ZIP_DEFLATED: 'deflated',
            zipfile.ZIP_STORED:   'stored',
            } 
  
  compressed_name = 'edw_files_' + datetime.strftime(date(), '%Y%m%d') + '.zip' 
  print 'creating archive'
  zf = zipfile.ZipFile('edw_files_' + datetime.strftime(date(), '%Y%m%d') + '.zip', mode='w')
  try:
      zf.write(name1, compress_type=compression)
      zf.write(name2, compress_type=compression)
      zf.write(name3, compress_type=compression)
  finally:
      print 'closing'
      zf.close()
  </code></pre>