can't install npm

[regincastillo]

i try many times to install npm but still don't work please tell me what to do i always get this error message when try to install npm

Building: C:\Program Files\nodejs\node.exe D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\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 'D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\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 [email protected]
gyp info using [email protected] | 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 getNotFoundError (D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\which\which.js:13:12)
gyp verb which failed at F (D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\which\which.js:68:19)
gyp verb which failed at E (D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\which\which.js:80:29)
gyp verb which failed at D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\which\which.js:89:16
gyp verb which failed at D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\isexe\index.js:42:5
gyp verb which failed at D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\isexe\windows.js:36:5
gyp verb which failed at FSReqWrap.oncomplete (fs.js:152:21)
gyp verb which failed python2 { Error: not found: python2
gyp verb which failed at getNotFoundError (D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\which\which.js:13:12)
gyp verb which failed at F (D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\which\which.js:68:19)
gyp verb which failed at E (D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\which\which.js:80:29)
gyp verb which failed at D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\which\which.js:89:16
gyp verb which failed at D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\isexe\index.js:42:5
gyp verb which failed at D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\isexe\windows.js:36:5
gyp verb which failed at FSReqWrap.oncomplete (fs.js:152:21)
gyp verb which failed stack: 'Error: not found: python2\n at getNotFoundError (D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\which\which.js:13:12)\n at F (D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\which\which.js:68:19)\n at E (D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\which\which.js:80:29)\n at D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\which\which.js:89:16\n at D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\isexe\index.js:42:5\n at D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\isexe\windows.js:36:5\n at FSReqWrap.oncomplete (fs.js:152:21)',
gyp verb which failed code: 'ENOENT' }
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 getNotFoundError (D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\which\which.js:13:12)
gyp verb which failed at F (D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\which\which.js:68:19)
gyp verb which failed at E (D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\which\which.js:80:29)
gyp verb which failed at D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\which\which.js:89:16
gyp verb which failed at D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\isexe\index.js:42:5
gyp verb which failed at D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\isexe\windows.js:36:5
gyp verb which failed at FSReqWrap.oncomplete (fs.js:152:21)
gyp verb which failed python { Error: not found: python
gyp verb which failed at getNotFoundError (D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\which\which.js:13:12)
gyp verb which failed at F (D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\which\which.js:68:19)
gyp verb which failed at E (D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\which\which.js:80:29)
gyp verb which failed at D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\which\which.js:89:16
gyp verb which failed at D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\isexe\index.js:42:5
gyp verb which failed at D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\isexe\windows.js:36:5
gyp verb which failed at FSReqWrap.oncomplete (fs.js:152:21)
gyp verb which failed stack: 'Error: not found: python\n at getNotFoundError (D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\which\which.js:13:12)\n at F (D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\which\which.js:68:19)\n at E (D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\which\which.js:80:29)\n at D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\which\which.js:89:16\n at D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\isexe\index.js:42:5\n at D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\isexe\windows.js:36:5\n at FSReqWrap.oncomplete (fs.js:152:21)',
gyp verb which failed code: 'ENOENT' }
gyp verb could not find "python". checking python launcher
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 PythonFinder.failNoPython (D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\node-gyp\lib\configure.js:483:19)
gyp ERR! stack at PythonFinder. (D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\node-gyp\lib\configure.js:508:16)
gyp ERR! stack at D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\graceful-fs\polyfills.js:284:29
gyp ERR! stack at FSReqWrap.oncomplete (fs.js:152:21)
gyp ERR! System Windows_NT 10.0.16299
gyp ERR! command "C:\Program Files\nodejs\node.exe" "D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\node-gyp\bin\node-gyp.js" "rebuild" "--verbose" "--libsass_ext=" "--libsass_cflags=" "--libsass_ldflags=" "--libsass_library="
gyp ERR! cwd D:\wamp64\www\reginsite\wp-content\themes\gulp-dev\node_modules\node-sass
gyp ERR! node -v v8.10.0
gyp ERR! node-gyp -v v3.6.2
gyp ERR! not ok
Build failed with error code: 1
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: [email protected] (node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for [email protected]: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})

npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] postinstall: node scripts/build.js
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] postinstall script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\growldev\AppData\Roaming\npm-cache_logs\2018-03-09T09_36_15_803Z-debug.log