Django or Flask?

Question

which one is better to learn in the long run?

Answer 1

Flask is easier to learn because it is quite open because it does not need a specific order of files and everything is under your control, but you have high-level functions.

Django is more robust but more strict because you need to order everything in a specific order and you have less control.

Answer 2

Both are excellent choices, and have good marketability. I like Flask in most situations because you can just get started without having to spend a lot of time preparing things that you'll probably never use in a small project in Django. Django does have more features, and is more of a full framework, it does come with it's bloat.

Learn one first, then try the other for a while and see which you like more, and stick with it. It's good to know both, though.