title: python-magic module' object has no attribute 'open'
body: <p>I am trying to use python-magic package, a wrapper class for libmagic.</p>
  
  <p>I install using "pip install python-magic"
  but when I test it:</p>
  
  <pre><code>import magic
  ms = magic.open(magic.MAGIC_NONE)
  ms.load()
  </code></pre>
  
  <p>it shows that module' object has no attribute 'open'. I searched on google and somebody said that one cause is I do not have a __init__.py file. so I checked my peronsal site-packages directory. I found magic.py, magic.pyc, and a folder python_magic-0.4.3-py2.7.egg-info which just include some text files.</p>
  
  <p>How can I get the __init__.py file? I checked other packages installed, some of them do 
  have such a file. </p>
  
  <p>Thanks.</p>