Well, I haven't explained this part yet, but there's a bigger picture. In order to create a service that analyzes data, Python, which handles data very well, was used in a big way. It's easy. Also, you need to know two languages, Python and JavaScript, to grow as a developer, and these two languages cover the widest range and have great usability. I think it would be good for many people to become service development planners who are good at handling data and can even analyze data. If you learn Python, you'll be surprised right away, so it would be really good if you had that kind of experience later.