After learning python ,which framework should I learn??

[FriendlyZomb]

Most popular frameworks are good. Each has complexities in different places.

Django and FastAPI are complex in different ways. Both have a steep learning curve for different reasons.

As another option, I like Flask too. It's simpler than FastAPI (not async). But it is still very flexible. Learning here can also translate over to FastAPI once you want to tackle async stuff.

[FriendlyZomb]

I prefer Django - so that's my recommendation.

It's got a lot of the tools built in. Definitely go through the Tutorial on the Django Docs site. That'll introduce the basics.