[tankerdude]

Molten does what I've seen in RoR land do. You decorate and document your schema. It then can spit out an OpenAPI spec, use its schema and tooling around OpenAPI.

So it becomes a choice. A decision of writing mostly OpenAPI, or writing Python via an API that is defined by someone (or a small set of people).

I'd personally rather learn OpenAPI specs as you're going to live in that world anyways, as it gives you so much tooling.

It's not hard, and you could take that yaml file and generate code for other languages in case Python's performance specifically for that API (especially it if is a microservice), runs too slowly in the real world and need a faster runtime, etc.