build: keep matplotlib below 3.11 while Python 3.10 is supported - #49
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matplotlib 3.11 requires Python >= 3.11, and this package still declares requires-python >= 3.10 with a 3.10 job in CI. Dependabot's bump in #47 was compiled on a newer interpreter, so its lockfile dropped the pins that only 3.10 needs (typing-extensions, tomli, exceptiongroup) and the hashed install failed on the first job; it also rewrote the floor in ci.in to >= 3.11.1. Pin the ceiling in ci.in with the reason beside it, and tell Dependabot to skip feature bumps of matplotlib under /requirements so the same PR does not reopen every week. Patch releases still flow. The regenerated ci.txt is byte-identical to the current one, which confirms the lock was already the 3.10-compatible resolution. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_014gwmBVUHSgohCLkNVqAR77 Signed-off-by: Claude <noreply@anthropic.com>
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Replaces #47, which cannot land as opened.
Why #47 failed
matplotlib 3.11 requires Python >= 3.11. This package declares
requires-python >= 3.10and CI runs a 3.10 job. Dependabot compiled its lockfile on a newer interpreter, so the regeneratedrequirements/ci.txtdropped the pins that only 3.10 needs (typing-extensions,tomli,exceptiongroup), and the hashed install failed on the first job:It also rewrote the floor in
requirements/ci.intomatplotlib>=3.11.1, which would drop 3.10 support silently.What this does
requirements/ci.in:matplotlib>=3.8,<3.11, with the reason beside it. Lift the ceiling whenrequires-pythonmoves to 3.11..github/dependabot.yml: ignore semver-minor and semver-major matplotlib bumps under/requirements, so the same PR does not reopen weekly. Patch releases still flow.requirements/ci.txt: regenerated with pip-compile on 3.10 from the newci.in. The output is byte-identical to the current file, which confirms the existing lock was already the 3.10-compatible resolution, so no lockfile diff appears here.Verification
Fresh venvs on 3.10 and 3.11, each
pip install --require-hashes -r requirements/ci.txt && pip install --no-deps -e ., then:After merging
Close #47 (Dependabot will not re-open it once the ignore rule is on main). #48 touches
ci.in/ci.txttoo and has been brought up to date with this branch so it merges in either order.🤖 Generated with Claude Code
https://claude.ai/code/session_014gwmBVUHSgohCLkNVqAR77
Generated by Claude Code