title: Python ZipFile module extracts password protected zips slowly
body: <p>i am trying to write a python-script, which should extract a zip file:</p>
  
  <p>Board: Beagle-Bone black  <code>~ 1GHz Arm-Cortex-a8</code>, debian wheezy
  <code>Zipfile: /home/milo/my.zip, ~ 8 MB</code></p>
  
  <pre><code>&gt;&gt;&gt; from zipfile import ZipFile
  &gt;&gt;&gt; zip = ZipFile("/home/milo/my.zip")
  &gt;&gt;&gt; zip.extractall(pwd="tst")
  </code></pre>
  
  <p>other solutions with opening and reading-> writing the zipfile and extracting even
  particular file have the same effect. extracting take about 3-4 minutes.</p>
  
  <p>Extracting the same file with just using unzip-tool takes less than 2 seconds.</p>
  
  <p>Does anyone know what is wonrg with my code, or even with python <code>zipfile</code> lib??</p>
  
  <p>Thanks
  Ajava</p>