Python and Nodejs with subprocess

ps1.py

#-*- coding: utf-8 -*-
import subprocess

if __name__ == '__main__':
  ps = subprocess.Popen(['nodejs','ps2.js'], stdin=subprocess.PIPE, stdout=subprocess.PIPE)

  out = ps.communicate(input='http://www.daum.net'.encode())[0]
  print(out.decode('utf-8'))

ps2.js

'use strict'

const http = require('http')

process.stdin.setEncoding('utf-8')
process.stdout.setEncoding('utf-8')
process.stdin.on('readable', () => {
  const content = process.stdin.read()
  if(!!content) {
    http.get(content, (res) => {
      if(res.statusCode >= 200 && res.statusCode < 400) {
        let body = ''

        res.on('data', (d) => body += d)
        res.on('end', () => console.log(body))
      } else {
        console.error(`[${res.statusCode}] ${res.statusMessage}`)
      }
    })
  }
})

After the execution of ps1.py, I am receiving the following error:

FileNotFoundError Traceback (most recent call last)
in
2
3 if name == 'main':
----> 4 ps = subprocess.Popen(['nodejs','ps2.js'], stdin=subprocess.PIPE, stdout=subprocess.PIPE)
5
6 out = ps.communicate(input='http://www.daum.net'.encode())[0]

/usr/lib/python3.7/subprocess.py in init(self, args, bufsize, executable, stdin, stdout, stderr, preexec_fn, close_fds, shell, cwd, env, universal_newlines, startupinfo, creationflags, restore_signals, start_new_session, pass_fds, encoding, errors, text)
798 c2pread, c2pwrite,
799 errread, errwrite,
--> 800 restore_signals, start_new_session)
801 except:
802 # Cleanup if the child failed starting.

/usr/lib/python3.7/subprocess.py in _execute_child(self, args, executable, preexec_fn, close_fds, pass_fds, cwd, env, startupinfo, creationflags, shell, p2cread, p2cwrite, c2pread, c2pwrite, errread, errwrite, restore_signals, start_new_session)
1549 if errno_num == errno.ENOENT:
1550 err_msg += ': ' + repr(err_filename)
-> 1551 raise child_exception_type(errno_num, err_msg, err_filename)
1552 raise child_exception_type(err_msg)
1553

FileNotFoundError: [Errno 2] No such file or directory: 'nodejs': 'nodejs'