Update GitHub workflows to Python 3.13

[mishushakov]

Summary

• Upgrade all Python workflow jobs from Python 3.12 (and 3.10 for linting) to Python 3.13
• Update setup-python action from v4 to v6 to support Python 3.13

Affected Workflows

• charts_tests.yml
• lint.yml
• performance_tests.yml
• python_tests.yml
• release.yml (multiple jobs)
• release_candidates.yml

🤖 Generated with Claude Code

---

Note

Low Risk
CI-only workflow changes; main risk is unexpected breakage if Python 3.13/Poetry 1.8.1 or the .tool-versions parsing step behaves differently across jobs.

Overview
Workflows now centralize Python/Poetry versioning by adding a .tool-versions file and parsing it in CI via wistia/parse-tool-versions, then wiring actions/setup-python and snok/install-poetry to use those parsed versions.

As part of this, multiple jobs switch actions/setup-python from v4 to v6 and move hardcoded Python versions (including prior 3.10/3.12 and template 3.13) to TOOL_VERSION_PYTHON, with Poetry similarly pinned via TOOL_VERSION_POETRY across test, lint, performance, release, and template build workflows.

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[cursor]

Cursor Bugbot has reviewed your changes and found 2 potential issues.

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[cursor]

NumPy 1.26.4 incompatible with Python 3.13 in charts

High Severity

The chart_data_extractor project depends on numpy = "^1.26.4" (constrained to <2.0.0), but NumPy 1.26.4 has Requires-Python: <3.13,>=3.9 and is the last 1.x release. Upgrading Python to 3.13 makes it impossible to install numpy within that version constraint, so poetry install will fail. The pyproject.toml constraint needs to be updated to allow NumPy 2.x before switching to Python 3.13.

Additional Locations (1)

• .github/workflows/release.yml#L130-L131

 

[mishushakov]

we will upgrade it

[cursor]

NumPy 2.0.2 lacks Python 3.13 support in SDK

High Severity

The python/poetry.lock pins numpy to 2.0.2, which has no cp313 wheels. NumPy 2.1.0 was the first version to add Python 3.13 support (per its release notes). On Python 3.13, Poetry would fall back to building numpy 2.0.2 from source, which is expected to fail because the C code was not updated for Python 3.13 API changes. This breaks python_tests.yml, performance_tests.yml, and lint.yml at poetry install.

Additional Locations (2)

• .github/workflows/performance_tests.yml#L36-L37
• .github/workflows/lint.yml#L35-L36

 

[mishushakov]

it's fine, we can update it at later point

[jakubno]

can we use .tool-versions?