title: How to judge which version of .whl file is supported when install a Python package
body: <p>Recently, I just try to connect my SQL Server in python. So I just download the .whl file from  "<a href="http://www.lfd.uci.edu/~gohlke/pythonlibs/#pymssql" rel="noreferrer">http://www.lfd.uci.edu/~gohlke/pythonlibs/#pymssql</a>".
  in cmd windows, I use the following command:</p>
  
  <pre><code>pip install some-package.whl
  </code></pre>
  
  <p>My pc is window 64bit, I tried all the .whl files in the following. 
  <a href="http://www.lfd.uci.edu/~gohlke/pythonlibs/#pymssql" rel="noreferrer">http://www.lfd.uci.edu/~gohlke/pythonlibs/#pymssql</a></p>
  
  <pre><code>pymssql‑1.0.3‑cp27‑none‑win32.whl
  pymssql‑2.1.3‑cp27‑cp27m‑win32.whl
  pymssql‑2.1.3‑cp27‑cp27m‑win_amd64.whl
  pymssql‑2.1.3‑cp34‑cp34m‑win32.whl
  pymssql‑2.1.3‑cp34‑cp34m‑win_amd64.whl
  pymssql‑2.1.3‑cp35‑cp35m‑win32.whl
  pymssql‑2.1.3‑cp35‑cp35m‑win_amd64.whl
  pymssql‑2.1.3‑cp36‑cp36m‑win32.whl
  pymssql‑2.1.3‑cp36‑cp36m‑win_amd64.whl
  </code></pre>
  
  <p>But failed to install, with the error message, the .whl file is not supported in this system. what should I do. Can somebody help me.</p>