Comment résoudre l'erreur d'installation de NPM «NPM ERR! Code 1 ”

J'essaie d'installer Gulp et lorsque j'écris NPM Install J'ai obtenu ce problème:

npm ERR! code 1
npm ERR! path D:\www\wegrow\node_modules\node-sass
npm ERR! command failed
npm ERR! command C:\Windows\system32\cmd.exe /d /s /c node scripts/build.js
npm ERR! Building: C:\Program Files (x86)\nodejs\node.exe D:\www\wegrow\node_modules\node-gyp\bin\node-gyp.js rebuild --verbose --libsass_ext= --libsass_cflags= --libsass_ldflags= --libsass_library=
npm ERR! gyp info it worked if it ends with ok
npm ERR! gyp verb cli [
npm ERR! gyp verb cli   'C:\\Program Files (x86)\\nodejs\\node.exe',
npm ERR! gyp verb cli   'D:\\www\\wegrow\\node_modules\\node-gyp\\bin\\node-gyp.js',
npm ERR! gyp verb cli   'rebuild',
npm ERR! gyp verb cli   '--verbose',
npm ERR! gyp verb cli   '--libsass_ext=',
npm ERR! gyp verb cli   '--libsass_cflags=',
npm ERR! gyp verb cli   '--libsass_ldflags=',
npm ERR! gyp verb cli   '--libsass_library='
npm ERR! gyp verb cli ]
npm ERR! gyp info using node-gyp@3.8.0
npm ERR! gyp info using node@16.1.0 | win32 | ia32
npm ERR! gyp verb command rebuild []
npm ERR! gyp verb command clean []
npm ERR! gyp verb clean removing "build" directory
npm ERR! gyp verb command configure []
npm ERR! gyp verb check python checking for Python executable "python2" in the PATH
npm ERR! gyp verb `which` failed Error: not found: python2
npm ERR! gyp verb `which` failed     at getNotFoundError (D:\www\wegrow\node_modules\which\which.js:13:12)
npm ERR! gyp verb `which` failed     at F (D:\www\wegrow\node_modules\which\which.js:68:19)
npm ERR! gyp verb `which` failed     at E (D:\www\wegrow\node_modules\which\which.js:80:29)
npm ERR! gyp verb `which` failed     at D:\www\wegrow\node_modules\which\which.js:89:16
npm ERR! gyp verb `which` failed     at D:\www\wegrow\node_modules\isexe\index.js:42:5
npm ERR! gyp verb `which` failed     at D:\www\wegrow\node_modules\isexe\windows.js:36:5
npm ERR! gyp verb `which` failed     at FSReqCallback.oncomplete (node:fs:194:21)
npm ERR! gyp verb `which` failed  python2 Error: not found: python2
npm ERR! gyp verb `which` failed     at getNotFoundError (D:\www\wegrow\node_modules\which\which.js:13:12)
npm ERR! gyp verb `which` failed     at F (D:\www\wegrow\node_modules\which\which.js:68:19)
npm ERR! gyp verb `which` failed     at E (D:\www\wegrow\node_modules\which\which.js:80:29)
npm ERR! gyp verb `which` failed     at D:\www\wegrow\node_modules\which\which.js:89:16
npm ERR! gyp verb `which` failed     at D:\www\wegrow\node_modules\isexe\index.js:42:5
npm ERR! gyp verb `which` failed     at D:\www\wegrow\node_modules\isexe\windows.js:36:5
npm ERR! gyp verb `which` failed     at FSReqCallback.oncomplete (node:fs:194:21) {
npm ERR! gyp verb `which` failed   code: 'ENOENT'
npm ERR! gyp verb `which` failed }
npm ERR! gyp verb check python checking for Python executable "python" in the PATH
npm ERR! gyp verb `which` succeeded python C:\Python39\python.EXE
npm ERR! gyp ERR! configure error
npm ERR! gyp ERR! stack Error: Command failed: C:\Python39\python.EXE -c import sys; print "%s.%s.%s" % sys.version_info[:3];
npm ERR! gyp ERR! stack   File "<string>", line 1
npm ERR! gyp ERR! stack     import sys; print "%s.%s.%s" % sys.version_info[:3];
npm ERR! gyp ERR! stack                       ^
npm ERR! gyp ERR! stack SyntaxError: invalid syntax
npm ERR! gyp ERR! stack
npm ERR! gyp ERR! stack     at ChildProcess.exithandler (node:child_process:326:12)
npm ERR! gyp ERR! stack     at ChildProcess.emit (node:events:365:28)
npm ERR! gyp ERR! stack     at maybeClose (node:internal/child_process:1067:16)
npm ERR! gyp ERR! stack     at Socket.<anonymous> (node:internal/child_process:453:11)
npm ERR! gyp ERR! stack     at Socket.emit (node:events:365:28)
npm ERR! gyp ERR! stack     at Pipe.<anonymous> (node:net:661:12)
npm ERR! gyp ERR! System Windows_NT 10.0.19042
npm ERR! gyp ERR! command "C:\\Program Files (x86)\\nodejs\\node.exe" "D:\\www\\wegrow\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild" "--verbose" "--libsass_ext=" "--libsass_cflags=" "--libsass_ldflags=" "--libsass_library="
npm ERR! gyp ERR! cwd D:\www\wegrow\node_modules\node-sass
npm ERR! gyp ERR! node -v v16.1.0
npm ERR! gyp ERR! node-gyp -v v3.8.0
npm ERR! gyp ERR! not ok
npm ERR! Build failed with error code: 1

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\wbalu\AppData\Local\npm-cache\_logs\2021-05-05T10_38_29_779Z-debug.log

J'ai formaté mon ordinateur. Tout fonctionnait avant. Et maintenant, quand j'essaie de l'installer, c'est ce qui apparaît. J'ai essayé de réinstaller Node.js mais cela n'a pas aidé. Je ne sais pas ce que je devrais faire.