0.9.0

This release adds PEP 639 support (METADATA 2.4), refactors the RFC messages, and adds a lot of validation (including warnings and opt-in errors), a way to produce all validation errors at once, and more. The beta releases are intended for backend authors to try out the changes before a final release.

Features:

• Added PEP 639 support for SPDX license and license files, METADATA 2.4
• Validate extra keys (warning, opt-in error)
• Functions to check top level and build-system (including PEP 735 support)
• Add TypedDict's in new module for typing pyproject.toml dicts
• all_errors=True causes ExceptionGroup's to be emitted
• Support METADATA 2.1+ JSON format with new .as_json() method

Fixes:

• Match EmailMessage spacing
• Handle multilines the way setuptools does with smart indentation
• Warn on multiline Summary (project.description)
• Improve locking for just metadata fields
• Error on extra keys in author/maintainer
• URL name stylization removed matching PEP 753

Full Changelog: 0.8.1...0.9.0

0.9.0 RC 1

Changes since last beta:

• Remove attribute locking
• Fix for METADATA 2.4 being set and PEP 639 recommendation
• Support PEP 735 in top level validation
• Adjust URL handling to better match PEP 753

Full Changelog: 0.9.0b7...0.9.0rc1

0.8.1

• Validate project name
• Validate entrypoint group names
• Correct typing for emails
• Add 3.13 to testing
• Add ruff-format
• Actions and dependabot
• Generate GitHub attestations for releases
• Add PyPI attestations
• Fix coverage context

Full Changelog: 0.8.0...0.8.1

0.9.0 beta 7

Refactoring:

• Revert to double quotes in error messages for field names
• Show the types instead of values in error messages

Docs:

• Better API section

0.9.0 beta 6

Refactoring:

• Move validate_* functions into extras_* instead
• Use Dynamic for the type of .dynamic
• Reformat single quotes to double quotes to match packaging
• Produce standard Python repr style in error messages

Fixes:

• Improve locking for just metadata fields

Docs:

• Include extra badge in readme
• Rework docs, include README and more classes
• Changelog is now in markdown

0.9.0 beta 5

Features:

• Add TypedDict's in new module for typing pyproject.toml dicts
• all_errors=True causes ExceptionGroup's to be emitted
• Support METADATA 2.1+ JSON format with new .as_json() method

Internal and CI:

• Require 100% coverage

Refactoring:

• Spit up over multiple files
• Remove data fetcher, use static types wherever possible

0.9.0 beta 4

Features:

• Setting a non-dynamic field is an error

Fixes:

• Warn on multiline Summary (project.description)

Refactoring:

• Remove indirection accessing metadata_version, add auto_metadata_version
• Rework how dynamic works, add dynamic_metadata
• Use dataclass instead of named tuple
• chore: use named arguments instead of positional

0.9.0 beta 3

What's Changed

• Support unicode METADATA in the description again
• Restore RFC822Message with support for unicode
• Restore write_to_rfc822 with support for any Message
• Restore recommendation to use string instead of bytes

Full Changelog: 0.9.0b2...0.9.0b3

0.9.0 beta 2

What's Changed

• Support unicode METADATA again
• Remove the custom RFC822Message entirely, replaced with a custom Policy (which also handles multilines)
• Handle multiline the way setuptools does with smart indentation
• Remove write_to_rfc822
• Remove the multiline warning for all metadata
• Add some unicode and reading tests
• Swap EmailMessage for Message
• Add PyPI attestations

Full Changelog: 0.9.0b1...0.9.0b2

0.9.0 beta 1

This release adds PEP 639 support (METADATA 2.4), refactors the RFC messages, and adds a lot of validation (including warnings and opt-in errors). The beta release is intended for backend authors to try out the changes before a final release.

What's Changed

Features:

• Added PEP 639 support for SPDX license and license files, METADATA 2.4
• Validate extra keys (warning, opt-in error)
• Validate project name
• Validate entrypoint group names
• Add multiline warning

Fixes:

• Correct typing for emails
• Match EmailMessage spacing

Refactoring:

• Move fetcher methods
• Put validation in function
• Prepare for EmailMessage
• Use EmailMessage class

Internal and CI:

• Add 3.13 to testing
• Add ruff-format
• Actions and dependabot
• Better changelog auto-generation
• Generate attestations for releases
• macos-latest now points at macos-14
• Refactor and cleanup tests
• Add human readable IDs to tests
• Fix coverage context

Full Changelog: 0.8.0...0.9.0b1