This just seems impossible. Any nontrivial open source project with a decent amount of stars (i.e. something that will give OP visibility) is impenetrable for a noob. I don't know why people keep recommending this as a way to break into software dev. It will take a couple months just to setup a testing environment AND get familiarity with the codebase where you can actually start modifying it. Then you need to identify an issue and hope it'll pass muster with the maintainers who have a bazillion years of experience.
Can you name a single example project on Github where you think a Python programmer with 2-3 years experience could contribute?
Can you name a single example project on Github where you think a Python programmer with 2-3 years experience could contribute?