pyproject-toml

• Normalize extra names in optional dependencies

• Support resolving optional dependencies and dependency groups
• Update toml to 0.9

• Better PEP 639 license-files glob validation and error messages from uv
• A public check_pep639_glob function for using the PEP 639 support with a different glob crate.

Ensure wasm32-unknown-unknown support

• Update pep440_rs to 0.7.2
• Update pep508_rs to 0.9.1
• Ensure wasm32-unknown-unknown support

• Make license and license_files public again
• Add accessors for email / name on Contact
• Add a method to resolve dependency groups into concrete lists of dependencies

• Make Contact definition strict

• Fix Contact definition

• Update to the provisional PEP 639. This is technically a breaking change, but only for fields previously in draft
• Update pep440_rs to 0.7.1
• Update pep508_rs to 0.8.0

• Support dependency groups (PEP 735)

• Update pep440_rs to 0.6.0
• Update pep508_rs to 0.6.0

• The build_system table is now optional. There are many projects that use pyproject.toml for tool configuration without specifying a build backend, which this change reflects.

• Update to latest PEP 639 draft. The license key is now an enum that can either be an SPDX identifier or the previous table form, which accepting PEP 639 would deprecate. The previous implementation of a project.license-expression key in pyproject.toml has been removed.