title: ValueError ['path'] failed building wheel for python-crfsuite
body: <p>I am trying to install python-CRFSuite using this command:</p>
  
  <pre><code>pip install python-crfsuite
  </code></pre>
  
  <p>Before this I use </p>
  
  <pre><code>SET VS90COMNTOOLS=%VS140COMNTOOLS%
  </code></pre>
  
  <p>since I am using Visual studio 2015. After running the installation command i get the following error:</p>
  
  <pre><code>File "C:\Python34\lib\distutils\msvc9compiler.py", line 287, in query_vcvarsall
        raise ValueError(str(list(result.keys())))
    ValueError: ['path']
  
    ----------------------------------------
    Failed building wheel for python-crfsuite 
  </code></pre>
  
  <p>If someone has faced same problem or has installed crfsuite on windows has knowledge about this then please help me solve this error</p>