Remove Python 3.10

[hagenw]

Removes support for Python 3.10 and adjusts code and dependencies to use new features of Python 3.11.

🤖 Generated with Claude Code

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

This PR removes Python 3.10 and older support by requiring Python 3.11+, narrowing CI coverage to 3.11–3.13, and standardizing tooling and release workflows on Python 3.12. It also adopts the Python 3.11 stdlib tomllib module for Sphinx configuration, eliminating the toml dependency and its pre-commit compatibility workaround.

Sequence diagram for Sphinx configuration loading

sequenceDiagram
    participant Sphinx
    participant DocsConfig as docs/conf.py
    participant Python as Python 3.11+ stdlib
    participant File as pyproject.toml

    Sphinx->>DocsConfig: load configuration
    DocsConfig->>Python: open(..., "rb")
    Python-->>DocsConfig: file object
    DocsConfig->>Python: tomllib.load(fp)
    Python->>File: read TOML
    File-->>Python: parsed TOML data
    Python-->>DocsConfig: config
    DocsConfig-->>Sphinx: configuration ready

Loading

File-Level Changes

Change	Details	Files
Raise the project’s supported and CI Python versions from 3.9/3.10 to Python 3.11+, with automation standardized on Python 3.12.	Set the package requirement to Python >=3.11 and remove 3.9/3.10 classifiers. Drop Python 3.9 and 3.10 from the test matrix. Update documentation, linting, and publishing workflows and pre-commit to use Python 3.12.	.github/workflows/doc.yml .github/workflows/linter.yml .github/workflows/publish.yml .github/workflows/test.yml .pre-commit-config.yaml pyproject.toml
Replace the third-party TOML parser with Python 3.11’s standard-library TOML support.	Load pyproject.toml with tomllib in binary mode. Remove the toml development dependency and the pre-commit tomli workaround.	docs/conf.py .pre-commit-config.yaml pyproject.toml

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[sourcery-ai]

Hey - I've reviewed your changes and they look great!

Sourcery assessment

Approved.

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Sourcery withdrew this approval because the latest commits introduced blocking findings.