I installed node .confirmed it by node-v command in command prompt.
I didnt install python .  can anyone guide me ?  

I got the following error :

PS C:\Users\Sujis\Desktop\VScode\Hello world> sfdx plugins:install @salesforce/lwc-dev-server
Polling for new version(s) to become available on npm... done
Successfully validated digital signature for @salesforce/lwc-dev-server.
Finished digital signature check.
warning @salesforce/lwc-dev-server > @lwc/engine@1.2.2: Use @lwc/engine-dom instead
warning @salesforce/lwc-dev-server > request-promise-native@1.0.9: request-promise-native has been deprecated because it extends the now deprecated request package, see https://github.com/request/request/issues/3142
warning @salesforce/lwc-dev-server > jsdom > request-promise-native@1.0.9: request-promise-native has been deprecated because it extends the now deprecated request package, see https://github.com/request/request/issues/3142
warning @salesforce/lwc-dev-server > cpx > chokidar@1.7.0: Chokidar 2 will break on node v14+. Upgrade to chokidar 3 with 15x less dependencies.
warning @salesforce/lwc-dev-server > @communities-webruntime/extensions > csurf@1.11.0: Please use another csrf package
warning @salesforce/lwc-dev-server > @salesforce/command > cli-ux@4.9.3: Package no longer supported. Contact Support at https://www.npmjs.com/support for more info.
warning @salesforce/lwc-dev-server > cpx > chokidar > fsevents@1.2.13: fsevents 1 will break on node v14+ and could be using insecure binaries. Upgrade to fsevents 2.
warning @salesforce/lwc-dev-server > jsdom > request@2.88.2: request has been deprecated, see https://github.com/request/request/issues/3142
warning @salesforce/lwc-dev-server > @salesforce/core > jsforce > request@2.88.2: request has been deprecated, see https://github.com/request/request/issues/3142
warning @salesforce/lwc-dev-server > @webruntime/compiler > babel-eslint@10.1.0: babel-eslint is now @babel/eslint-parser. 
This package will no longer receive updates.
warning @salesforce/lwc-dev-server > @webruntime/compiler > rollup-plugin-commonjs@9.3.4: This package has been deprecated 
and is no longer maintained. Please use @rollup/plugin-commonjs.
warning @salesforce/lwc-dev-server > @webruntime/compiler > rollup-plugin-node-resolve@4.2.4: This package has been deprecated and is no longer maintained. Please use @rollup/plugin-node-resolve.
warning @salesforce/lwc-dev-server > @webruntime/compiler > rollup-plugin-replace@2.2.0: This module has moved and is now available at @rollup/plugin-replace. Please update your dependencies. This version is no longer maintained.
warning @salesforce/lwc-dev-server > @webruntime/api > @lwc/compiler > rollup-plugin-replace@2.2.0: This module has moved and is now available at @rollup/plugin-replace. Please update your dependencies. This version is no longer maintained.      
warning @salesforce/lwc-dev-server > uuidv4 > uuid@3.3.3: Please upgrade  to version 7 or higher.  Older versions may use Math.random() in certain circumstances, which is known to be problematic.  See https://v8.dev/blog/math-random for details. 
warning @salesforce/lwc-dev-server > @webruntime/server > uuidv4 > uuid@3.3.2: Please upgrade  to version 7 or higher.  Older versions may use Math.random() in certain circumstances, which is known to be problematic.  See https://v8.dev/blog/math-random for details.
warning @salesforce/lwc-dev-server > jsdom > request > uuid@3.4.0: Please upgrade  to version 7 or higher.  Older versions 
may use Math.random() in certain circumstances, which is known to be problematic.  See https://v8.dev/blog/math-random for 
details.
warning @salesforce/lwc-dev-server > jsdom > request > har-validator@5.1.5: this library is no longer supported
warning @salesforce/lwc-dev-server > cpx > babel-runtime > core-js@2.6.12: core-js@<3.23.3 is no longer maintained and not 
recommended for usage due to the number of issues. Because of the V8 engine whims, feature detection in old core-js versions could cause a slowdown up to 100x even if nothing is polyfilled. Some versions have web compatibility issues. Please, upgrade your dependencies to the actual version of core-js.
warning @salesforce/lwc-dev-server > cpx > chokidar > readdirp > micromatch > snapdragon > source-map-resolve@0.5.3: See https://github.com/lydell/source-map-resolve#deprecated
warning @salesforce/lwc-dev-server > cpx > chokidar > readdirp > micromatch > snapdragon > source-map-resolve > resolve-url@0.2.1: https://github.com/lydell/resolve-url#deprecated
warning @salesforce/lwc-dev-server > cpx > chokidar > readdirp > micromatch > snapdragon > source-map-resolve > source-map-url@0.4.1: See https://github.com/lydell/source-map-url#deprecated
warning @salesforce/lwc-dev-server > cpx > chokidar > readdirp > micromatch > snapdragon > source-map-resolve > urix@0.1.0: Please see https://github.com/lydell/urix#deprecated
warning @salesforce/lwc-dev-server > @webruntime/api > @lwc/compiler > @lwc/style-compiler > cssnano-preset-default > postcss-svgo > svgo@1.3.2: This SVGO version is no longer supported. Upgrade to v2.x.x.
warning @salesforce/lwc-dev-server > @webruntime/api > @lwc/compiler > @lwc/style-compiler > cssnano-preset-default > postcss-svgo > svgo > stable@0.1.8: Modern JS already guarantees Array#sort() is a stable sort, so this library is deprecated. See the compatibility table on MDN: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/sort#browser_compatibility
warning "@salesforce/lwc-dev-server > @rollup/plugin-alias@3.1.9" has unmet peer dependency "rollup@^1.20.0||^2.0.0".
warning "@salesforce/lwc-dev-server > request-promise-native@1.0.9" has unmet peer dependency "request@^2.34".       
warning "@salesforce/lwc-dev-server > request-promise-native > request-promise-core@1.1.4" has unmet peer dependency "request@^2.34".
error C:\Users\Sujis\AppData\Local\sfdx\node_modules\fibers: Command failed.
Exit code: 1
Command: node build.js || nodejs build.js
Arguments:
Directory: C:\Users\Sujis\AppData\Local\sfdx\node_modules\fibers
Output:
gyp info it worked if it ends with ok
gyp info using node-gyp@9.1.0
gyp info using node@16.17.0 | win32 | x64
gyp ERR! find Python
gyp ERR! find Python Python is not set from command line or npm configuration
gyp ERR! find Python Python is not set from environment variable PYTHON
gyp ERR! find Python checking if "python3" can be used
gyp ERR! find Python - "python3" is not in PATH or produced an error
gyp ERR! find Python checking if "python" can be used
gyp ERR! find Python - "python" is not in PATH or produced an error
gyp ERR! find Python checking if Python is C:\Users\Sujis\AppData\Local\Programs\Python\Python39\python.exe
gyp ERR! find Python - "C:\Users\Sujis\AppData\Local\Programs\Python\Python39\python.exe" could not be run
gyp ERR! find Python checking if Python is C:\Program Files\Python39\python.exe
gyp ERR! find Python - "C:\Program Files\Python39\python.exe" could not be run
gyp ERR! find Python checking if Python is C:\Users\Sujis\AppData\Local\Programs\Python\Python39-32\python.exe
gyp ERR! find Python - "C:\Users\Sujis\AppData\Local\Programs\Python\Python39-32\python.exe" could not be run
gyp ERR! find Python checking if Python is C:\Program Files\Python39-32\python.exe
gyp ERR! find Python - "C:\Program Files\Python39-32\python.exe" could not be run
gyp ERR! find Python checking if Python is C:\Program Files (x86)\Python39-32\python.exe
gyp ERR! find Python - "C:\Program Files (x86)\Python39-32\python.exe" could not be run
gyp ERR! find Python checking if Python is C:\Users\Sujis\AppData\Local\Programs\Python\Python38\python.exe
gyp ERR! find Python - "C:\Users\Sujis\AppData\Local\Programs\Python\Python38\python.exe" could not be run
gyp ERR! find Python checking if Python is C:\Program Files\Python38\python.exe
gyp ERR! find Python - "C:\Program Files\Python38\python.exe" could not be run
gyp ERR! find Python checking if Python is C:\Users\Sujis\AppData\Local\Programs\Python\Python38-32\python.exe
gyp ERR! find Python - "C:\Users\Sujis\AppData\Local\Programs\Python\Python38-32\python.exe" could not be run
gyp ERR! find Python checking if Python is C:\Program Files\Python38-32\python.exe
gyp ERR! find Python - "C:\Program Files\Python38-32\python.exe" could not be run
gyp ERR! find Python checking if Python is C:\Program Files (x86)\Python38-32\python.exe
gyp ERR! find Python - "C:\Program Files (x86)\Python38-32\python.exe" could not be run
gyp ERR! find Python checking if Python is C:\Users\Sujis\AppData\Local\Programs\Python\Python37\python.exe
gyp ERR! find Python - "C:\Users\Sujis\AppData\Local\Programs\Python\Python37\python.exe" could not be run
gyp ERR! find Python checking if Python is C:\Program Files\Python37\python.exe
gyp ERR! find Python - "C:\Program Files\Python37\python.exe" could not be run
gyp ERR! find Python checking if Python is C:\Users\Sujis\AppData\Local\Programs\Python\Python37-32\python.exe
gyp ERR! find Python - "C:\Users\Sujis\AppData\Local\Programs\Python\Python37-32\python.exe" could not be run
gyp ERR! find Python checking if Python is C:\Program Files\Python37-32\python.exe
gyp ERR! find Python - "C:\Program Files\Python37-32\python.exe" could not be run
gyp ERR! find Python checking if Python is C:\Program Files (x86)\Python37-32\python.exe
gyp ERR! find Python - "C:\Program Files (x86)\Python37-32\python.exe" could not be run
gyp ERR! find Python checking if Python is C:\Users\Sujis\AppData\Local\Programs\Python\Python36\python.exe
gyp ERR! find Python - "C:\Users\Sujis\AppData\Local\Programs\Python\Python36\python.exe" could not be run
gyp ERR! find Python checking if Python is C:\Program Files\Python36\python.exe
gyp ERR! find Python - "C:\Program Files\Python36\python.exe" could not be run
gyp ERR! find Python checking if Python is C:\Users\Sujis\AppData\Local\Programs\Python\Python36-32\python.exe
gyp ERR! find Python - "C:\Users\Sujis\AppData\Local\Programs\Python\Python36-32\python.exe" could not be run
gyp ERR! find Python checking if Python is C:\Program Files\Python36-32\python.exe
gyp ERR! find Python - "C:\Program Files\Python36-32\python.exe" could not be run
gyp ERR! find Python checking if Python is C:\Program Files (x86)\Python36-32\python.exe
gyp ERR! find Python - "C:\Program Files (x86)\Python36-32\python.exe" could not be run
gyp ERR! find Python checking if the py launcher can be used to find Python 3
gyp ERR! find Python - "py.exe" is not in PATH or produced an error
gyp ERR! find Python
gyp ERR! find Python **********************************************************
gyp ERR! find Python You need to install the latest version of Python.
gyp ERR! find Python Node-gyp should be able to find and use Python. If not,
gyp ERR! find Python you can try one of the following options:
gyp ERR! find Python - Use the switch --python="C:\Path\To\python.exe"
gyp ERR! find Python   (accepted by both node-gyp and npm)
gyp ERR! find Python - Set the environment variable PYTHON
gyp ERR! find Python - Set the npm configuration variable python:
gyp ERR! find Python   npm config set python "C:\Path\To\python.exe"
gyp ERR! find Python For more information consult the documentation at:
gyp ERR! find Python https://github.com/nodejs/node-gyp#installation
gyp ERR! find Python **********************************************************
gyp ERR! find Python
gyp ERR! configure error
gyp ERR! stack Error: Could not find any Python installation to use
gyp ERR! stack     at PythonFinder.fail (C:\Users\Sujis\AppData\Roaming\npm\node_modules\node-gyp\lib\find-python.js:330:47)
gyp ERR! stack     at PythonFinder.runChecks (C:\Users\Sujis\AppData\Roaming\npm\node_modules\node-gyp\lib\find-python.js:159:21)
gyp ERR! stack     at PythonFinder.<anonymous> (C:\Users\Sujis\AppData\Roaming\npm\node_modules\node-gyp\lib\find-python.js:228:18)
gyp ERR! stack     at PythonFinder.execFileCallback (C:\Users\Sujis\AppData\Roaming\npm\node_modules\node-gyp\lib\find-python.js:294:16)
gyp ERR! stack     at exithandler (node:child_process:408:5)
gyp ERR! stack     at ChildProcess.errorhandler (node:child_process:420:5)
gyp ERR! stack     at ChildProcess.emit (node:events:513:28)
gyp ERR! stack     at Process.ChildProcess._handle.onexit (node:internal/child_process:289:12)
gyp ERR! stack     at onErrorNT (node:internal/child_process:478:16)
gyp ERR! stack     at processTicksAndRejections (node:internal/process/task_queues:83:21)
gyp ERR! System Windows_NT 10.0.19044
gyp ERR! command "C:\\Users\\Sujis\\AppData\\Local\\sfdx\\client\\7.170.0-bd51991\\bin\\node.exe" "C:\\Users\\Sujis\\AppData\\Roaming\\npm\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild" "--release"
gyp ERR! cwd C:\Users\Sujis\AppData\Local\sfdx\node_modules\fibers
gyp ERR! node -v v16.17.0
gyp ERR! node-gyp -v v9.1.0
gyp ERR! not ok
node-gyp exited with code: 1
Please make sure you are using a supported platform and node version. If you
would like to compile fibers on this machine please make sure you have setup your
build environment--
Windows + OS X instructions here: https://github.com/nodejs/node-gyp
Ubuntu users please run: `sudo apt-get install g++ build-essential`
RHEL users please run: `yum install gcc-c++` and `yum groupinstall 'Development Tools'`
Alpine users please run: `sudo apk add python make g++`
'nodejs' is not recognized as an internal or external command,
operable program or batch file.
Installing plugin @salesforce/lwc-dev-server... failed
    Error: yarn add @salesforce/lwc-dev-server@latest --non-interactive 
    --mutex=file:C:\Users\Sujis\AppData\Local\sfdx\yarn.lock
    --preferred-cache-folder=C:\Users\Sujis\AppData\Local\sfdx\yarn --check-files exited with code 1


Thanks in advance