title: Can't npm install webpack-dev-server
body: <p>I can't get webpack-dev-server installed:</p>
  
  <pre><code>npm install -g webpack-dev-server
  </code></pre>
  
  <p>and I get:</p>
  
  <pre><code>gyp ERR! configure error
  gyp ERR! stack Error: Can't find Python executable "python", you can set the PYTHON env variable.
  npm ERR! Failed at the bufferutil@1.2.1 install script 'node-gyp rebuild'.
  npm ERR! This is most likely a problem with the bufferutil package,
  npm ERR! not with npm itself.
  npm ERR! Tell the author that this fails on your system:
  npm ERR!     node-gyp rebuild
  npm ERR! You can get their info via:
  npm ERR!     npm owner ls bufferutil
  npm ERR! There is likely additional logging output above.
  npm ERR! Please include the following file with any support request:
  npm ERR!     D:\...\npm-debug.log
  </code></pre>
  
  <p>Do I need python installed? How can I get it done? Is it a problem with bufferutil package?</p>