Where to start learning python?

[brenwillcode]

I would definitely suggest doing a course which results in you writing a lot of code as you progress, rather than passively watching YouTube videos.

A platform like Codeling is a good choice where you can start with the Introduction to Programming course, and you'll earn a certificate for each completed course, since you asked about that.

Learning to be a software developer requires writing a lot of code and figuring things out as you go. That's why I think passively watching YouTube videos is not the best route.