deps(python): enable Python 3.15 and Python 3.15t support - #293
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Advance stable CI and maintenance environments to Python 3.14, align the Conda typing-extensions floor, update typing examples for Python 3.14's union representation, and suppress enum suggestions for preprocessor-only feature flags.
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Description
Enable general Python 3.15 and Python 3.15t support across optree's CI, documentation, and packaging maintenance environments.
This change advances the stable full-test matrix from Python 3.12/3.13 to Python 3.13/3.14, moves lint, Read the Docs, and Conda maintenance to Python 3.14, raises the Conda
typing-extensionsfloor to the version required by that interpreter, and updates thePyTreetyping examples for Python 3.14's union representation.Motivation and Context
Python 3.15 support had arrived incrementally in classifiers, dependency markers, free-threaded wheel builds, Pyodide coverage, and built-in
frozendictsupport. This PR completes the general version-support update following the same repository-wide pattern used for Python 3.13 in #156 and Python 3.14/3.14t in #216.Types of changes
What types of changes does your code introduce? Put an
xin all the boxes that apply:Implemented Tasks
typing-extensions.Checklist
Go over all the following points, and put an
xin all the boxes that apply.If you are unsure about any of these, don't hesitate to ask. We are here to help!
make format. (required)make lint. (required)make testpass. (required)Validation
python3 -m pre_commit run --all-files: passed.make lintpassed its Python, type-checking, and doctest stages locally. Itsclang-tidystage is left unchecked because the available macOS LLVM 22 toolchain reports existing platform/toolchain diagnostics; noclang-tidy --fixoutput is included in this PR.