title: How to download a file via FTP with Python ftplib
body: <p>I have the following code which easily connects to the FTP server and opens a zip file. I want to download that file into the local system. How to do that?</p>
  
  <pre><code># Open the file for writing in binary mode
  print 'Opening local file ' + filename
  file = open(filename, 'wb')
  
  # Download the file a chunk at a time
  # Each chunk is sent to handleDownload
  # We append the chunk to the file and then print a '.' for progress
  # RETR is an FTP command
  
  print 'Getting ' + filename
  ftp.retrbinary('RETR ' + filename, handleDownload)
  
  # Clean up time
  print 'Closing file ' + filename
  file.close()
  </code></pre>