[zliang-akamai]

📝 Description

Raise the CLI's minimum supported Python version to 3.11, align its lint target and CI support list through Python 3.15, and move the standalone E2E default to Python 3.13 while removing the obsolete EOL selector. This intentionally drops Python 3.10 support.

✔️ How to Test

The unit suite completed with 232 passed and 8 baked-spec-dependent tests deselected on both Python 3.11 and 3.15. The deselected tests require the generated linodecli/data-3 spec artifact.

[Copilot]

🟢 Approval recommended

No active review issues remain for the Python support and tooling updates.

No open issues 🎉

What changed in this PR

Raises the CLI’s minimum supported Python version to 3.11, dropping support for Python 3.9 and 3.10 and aligning development tooling and CI.

Changes:

• Updates package requirements, Pylint compatibility, and contributor guidance to Python 3.11.
• Extends the CI matrix and Black targets through Python 3.15, raising Black’s minimum version.
• Sets standalone E2E tests to Python 3.13 by default and removes the obsolete EOL selector.

File	Description
pyproject.toml	Raises Python and Black requirements; updates formatting targets.
AGENTS.md	Documents the revised Python support range and syntax baseline.
.pylintrc	Sets version-dependent checks to Python 3.11.
.github/​workflows/​e2e-suite.yml	Defaults to Python 3.13 and removes EOL selection.
.github/​workflows/​ci.yml	Updates the Python test matrix to 3.11–3.15.

_{Review effort: Balanced}