Spawning child process in python in Node JS

I have written the following code in app.js for Windows

app.js

app.route('/file').post(function (req,res,next) {
// The path to your python script
var myPythonScript = "script.py";
// Provide the path of the python executable, if python is available as environment variable then you can use only "python"
var path =resolve("C:\\Python27\\python.exe");
var pythonExecutable = path;
var macadd =req.body.macadd;
var percent =req.body.percent;
// Function to convert an Uint8Array to a string
var uint8arrayToString = function(data){
    return String.fromCharCode.apply(null, data);
};

const spawn = require('child_process').spawn;
const scriptExecution = spawn(pythonExecutable, [myPythonScript]);

// Handle normal output
scriptExecution.stdout.on('data', (data) => {
    console.log(String.fromCharCode.apply(null, data));
});
var data = JSON.stringify([1,2,3,4,5]);
scriptExecution.stdin.write(data);
// End data write
scriptExecution.stdin.end();
});

As you can see the path for the python executable file is provided. This code works properly in Windows and gives the summation of the number in the array on the console. I want to execute the same code in Ubuntu. What do I specify for the python executable path in Linux(Ubuntu)?

via Amit Naik