Adding Python installation for an Electron app

Question

I am creating an Eletron desktop application for Windows. I am using electron-packager and then electron-squirrel-startup to create an .exe file. Like in this tutorial: https://ourcodeworld.com/articles/read/365/how-to-create-a-windows-installer-for-an-application-built-with-electron-framework

I would like to add installation of Python to the installer. Does anyone know how to do it?

My guess is somewhere here in main.js file:

function handleSquirrelEvent(application) {    
    switch (squirrelEvent) {
        case '--squirrel-install':
        case '--squirrel-updated':
        //HERE

but I'm not sure.

Edit:

My idea was to use node-cmd module to execute Windows cmd commands, yet for some reason code like this

var cmd=require('node-cmd');
cmd.run('touch example.txt');

does not work in the handleSquirrelEvent function. It works outside of it though.