title: I can't install gulp-sass module in my gulp project
body: <p>I do it one month ago, but now I come across with next problem. I tried to reinstall nodeJs. I installed gulp-scss extension, but it didn't install to. And now all extensions installing longer than usually. 1 package installing during for 20 minutes, internet connection is good.. </p>
  
  <pre><code>   C:\WDM\blablabla.com&gt;npm install gulp-sass --save
  npm WARN package.json gulp-project@1.0.0 No repository field.
  npm WARN package.json gulp-project@1.0.0 No README data
  npm WARN package.json gulp-project@1.0.0 No license field.
  npm WARN deprecated npmconf@2.1.2: this package has been reintegrated into npm and is now out of date with respect to npm
  npm WARN deprecated lodash@1.0.2: lodash@&lt;3.0.0 is no longer maintained. Upgrade to lodash@^4.0.0.
  npm WARN deprecated graceful-fs@1.2.3: graceful-fs version 3 and before will fail on newer node releases. Please update to graceful-fs@^4.0.0 as soon as possible.
  
  &gt; spawn-sync@1.0.15 postinstall C:\WDM\blablabla.com\node_modules\gulp-sass\node_modules\node-sass\node_modules\cross-spawn\node_modules\spawn-sync
  &gt; node postinstall
  
  \
  &gt; node-sass@3.4.2 install C:\WDM\blablabla.com\node_modules\gulp-sass\node_modules\node-sass
  &gt; node scripts/install.js
  
  Cannot download "https://github.com/sass/node-sass/releases/download/v3.4.2/win32-x64-46_binding.node":
  
  tunneling socket could not be established, cause=connect ETIMEDOUT 192.168.0.1:8080
  
  Hint: If github.com is not accessible in your location
        try setting a proxy via HTTP_PROXY, e.g.
  
        export HTTP_PROXY=http://example.com:1234
  
  or configure npm proxy via
  
        npm config set proxy http://example.com:8080
  
  &gt; node-sass@3.4.2 postinstall C:\WDM\blablabla.com\node_modules\gulp-sass\node_modules\node-sass
  &gt; node scripts/build.js
  
  Building: C:\Program Files\nodejs\node.exe C:\WDM\blablabla.com\node_modules\gulp-sass\node_modules\node-sass\node_modules\node-gyp\bin\node-gyp.js rebuild --verbose --libsass_ext= --
  libsass_cflags= --libsass_ldflags= --libsass_library=
  gyp info it worked if it ends with ok
  gyp verb cli [ 'C:\\Program Files\\nodejs\\node.exe',
  gyp verb cli   'C:\\WDM\\blablabla.com\\node_modules\\gulp-sass\\node_modules\\node-sass\\node_modules\\node-gyp\\bin\\node-gyp.js',
  gyp verb cli   'rebuild',
  gyp verb cli   '--verbose',
  gyp verb cli   '--libsass_ext=',
  gyp verb cli   '--libsass_cflags=',
  gyp verb cli   '--libsass_ldflags=',
  gyp verb cli   '--libsass_library=' ]
  gyp info using node-gyp@3.3.1
  gyp info using node@4.4.3 | win32 | x64
  gyp verb command rebuild []
  gyp verb command clean []
  gyp verb clean removing "build" directory
  gyp verb command configure []
  gyp verb check python checking for Python executable "python2" in the PATH
  gyp verb `which` failed Error: not found: python2
  gyp verb `which` failed     at F (C:\WDM\blablabla.com\node_modules\gulp-sass\node_modules\node-sass\node_modules\node-gyp\node_modules\which\which.js:63:19)
  gyp verb `which` failed     at E (C:\WDM\blablabla.com\node_modules\gulp-sass\node_modules\node-sass\node_modules\node-gyp\node_modules\which\which.js:72:29)
  gyp verb `which` failed     at C:\WDM\blablabla.com\node_modules\gulp-sass\node_modules\node-sass\node_modules\node-gyp\node_modules\which\which.js:81:16
  gyp verb `which` failed     at C:\WDM\blablabla.com\node_modules\gulp-sass\node_modules\node-sass\node_modules\node-gyp\node_modules\which\node_modules\isexe\index.js:44:5
  gyp verb `which` failed     at C:\WDM\blablabla.com\node_modules\gulp-sass\node_modules\node-sass\node_modules\node-gyp\node_modules\which\node_modules\isexe\windows.js:29:5
  gyp verb `which` failed     at FSReqWrap.oncomplete (fs.js:82:15)
  gyp verb `which` failed  python2 [Error: not found: python2]
  gyp verb check python checking for Python executable "python" in the PATH
  gyp verb `which` failed Error: not found: python
  gyp verb `which` failed     at F (C:\WDM\blablabla.com\node_modules\gulp-sass\node_modules\node-sass\node_modules\node-gyp\node_modules\which\which.js:63:19)
  gyp verb `which` failed     at E (C:\WDM\blablabla.com\node_modules\gulp-sass\node_modules\node-sass\node_modules\node-gyp\node_modules\which\which.js:72:29)
  gyp verb `which` failed     at C:\WDM\blablabla.com\node_modules\gulp-sass\node_modules\node-sass\node_modules\node-gyp\node_modules\which\which.js:81:16
  gyp verb `which` failed     at C:\WDM\blablabla.com\node_modules\gulp-sass\node_modules\node-sass\node_modules\node-gyp\node_modules\which\node_modules\isexe\index.js:44:5
  gyp verb `which` failed     at C:\WDM\blablabla.com\node_modules\gulp-sass\node_modules\node-sass\node_modules\node-gyp\node_modules\which\node_modules\isexe\windows.js:29:5
  gyp verb `which` failed     at FSReqWrap.oncomplete (fs.js:82:15)
  gyp verb `which` failed  python [Error: not found: python]
  gyp verb could not find "python". guessing location
  gyp verb ensuring that file exists: C:\Python27\python.exe
  gyp ERR! configure error
  gyp ERR! stack Error: Can't find Python executable "python", you can set the PYTHON env variable.
  gyp ERR! stack     at failNoPython (C:\WDM\blablabla.com\node_modules\gulp-sass\node_modules\node-sass\node_modules\node-gyp\lib\configure.js:401:14)
  gyp ERR! stack     at C:\WDM\blablabla.com\node_modules\gulp-sass\node_modules\node-sass\node_modules\node-gyp\lib\configure.js:356:11
  gyp ERR! stack     at FSReqWrap.oncomplete (fs.js:82:15)
  gyp ERR! System Windows_NT 10.0.10586
  gyp ERR! command "C:\\Program Files\\nodejs\\node.exe" "C:\\WDM\\blablabla.com\\node_modules\\gulp-sass\\node_modules\\node-sass\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild" "
  --verbose" "--libsass_ext=" "--libsass_cflags=" "--libsass_ldflags=" "--libsass_library="
  gyp ERR! cwd C:\WDM\blablabla.com\node_modules\gulp-sass\node_modules\node-sass
  gyp ERR! node -v v4.4.3
  gyp ERR! node-gyp -v v3.3.1
  gyp ERR! not ok
  Build failed
  npm ERR! Windows_NT 10.0.10586
  npm ERR! argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "install" "gulp-sass" "--save"
  npm ERR! node v4.4.3
  npm ERR! npm  v2.15.1
  npm ERR! code ELIFECYCLE
  
  npm ERR! node-sass@3.4.2 postinstall: `node scripts/build.js`
  npm ERR! Exit status 1
  npm ERR!
  npm ERR! Failed at the node-sass@3.4.2 postinstall script 'node scripts/build.js'.
  npm ERR! This is most likely a problem with the node-sass package,
  npm ERR! not with npm itself.
  npm ERR! Tell the author that this fails on your system:
  npm ERR!     node scripts/build.js
  npm ERR! You can get information on how to open an issue for this project with:
  npm ERR!     npm bugs node-sass
  npm ERR! Or if that isn't available, you can get their info via:
  npm ERR!
  npm ERR!     npm owner ls node-sass
  npm ERR! There is likely additional logging output above.
  
  npm ERR! Please include the following file with any support request:
  npm ERR!     C:\WDM\blablabla.com\npm-debug.log
  </code></pre>
  
  <p>During installation of files, they are showing in the directory, but after error they are deleted automatically.</p>
  
  <p>After npm update I recive this message </p>
  
  <pre><code>C:\WDM\blablabla.com&gt;npm install gulp-sass --save
  normalizeTree -&gt; network  - |----------------------------------------------------------
  ---------------------------------------------------------------------------------------
  normalizeTree -&gt; network  - |-------------------------------------------------------------------------------------------------------------------------------------------------normali
  zeTree -&gt; network  \ |-------------------------------------------------------------------------------------------------------------------------------------------------normalizeTree
  fetchMetadata -&gt; network  / |################################----------------------------------------------------------------------------------------------------------------------|
  </code></pre>
  
  <p>during an hour.</p>