PEP 825: Wheel Variants, Package Format (split from PEP 817)

[Liz (Elizabeth King)]

I’m not sure where this is most relevant, but according to another post, uv is using a toml file where the dictionary order is material. Upon following the link, I found out this was referring to wheel variants.

@mgorny

Funny you should mention that, given that I’m asking this question precisely because uv is using a TOML file where dictionary key order is significant, so the answer here pretty much determines whether we can use tomllib to parse this file, or if we need to implement a separate “extended” TOML parser that supports this feature.

I think it’s a mistake for wheel variants to rely on something that TOML does not guarantee and only happens to work in specific implementations due to implementation details.