[ENH][SCHEMA] Use Universal Path Library for Schema Retrieval

[bendhouseart]

I had initially added this to a PR for pybids but it seems more appropriate here. I think this also plays a bit into the discussion at issue #965 in so far as python users are concerned.

Conversely, a user could make a request first to https://bids-specification.readthedocs.io/en/stable/schema.json then use schema.load_schema following that retrieval.

I don't know, maybe this is a solution in search of a problem and/or should be fleshed out to retrieve specific versions of the schema from bids-standard/bids-schema.

[bendhouseart]

Also, can we convert the build backend to not pdm? Uv does not like it.

[effigies]

I really don't want to do this. If anything, I want fewer dependencies for tools that want to use the schema. We allow users to use UPaths.

What problems are you having with pdm?

[bendhouseart]

I really don't want to do this. If anything, I want fewer dependencies for tools that want to use the schema. We allow users to use UPaths.

Okay does that mean I should kill this or switch it over to urllib to handle collecting the schema?

What problems are you having with pdm?

UV run was not behaving until I went and setup the environment for bst with pdm first.

[effigies]

Okay does that mean I should kill this or switch it over to urllib to handle collecting the schema?

I would prefer to kill it, myself. I don't think we should handle requests. Supporting PathLike/Traversable objects is enough to support UPaths constructed by another tool.

UV run was not behaving until I went and setup the environment for bst with pdm first.

Interesting. I only use uv (mainly uv sync), and not the pdm frontend. It's just a quite easy backend to write plugins for. If you want to rewrite in a different backend and get the same result, I'll have no objection.

[bendhouseart]

I would prefer to kill it, myself. I don't think we should handle requests. Supporting PathLike/Traversable objects is enough to support UPaths constructed by another tool.

Okay, sounds good, it's straight forward enough to GET then load on one's own.

[bendhouseart]

Interesting. I only use uv (mainly uv sync), and not the pdm frontend. It's just a quite easy backend to write plugins for. If you want to rewrite in a different backend and get the same result, I'll have no objection.

Yeah I think it's a me uv/pdm/brew thing, but I kept getting invalid/unavailable backend when I was running uv run pytest... will make a smaller PR when I get the chance next week.