Support pandas 2 and 3

[idan192]

Summary

• Bump package version to 0.6.0.
• Relax pandas runtime support to >=2.2.2,<4.0.0.
• Add CI coverage for pandas 2.2.x, 2.3.x, and 3.x across supported Python versions.
• Add Python 3.14 CI coverage for pandas versions that publish Python 3.14 wheels.
• Clean up pandas compatibility issues in tests, scoring, and submission validation.
• Select the matrix pandas/NumPy constraints before poetry install so Python 3.14 jobs do not install the default locked pandas first.

Validation

• poetry check
• poetry build builds numerai_tools-0.6.0.tar.gz and numerai_tools-0.6.0-py3-none-any.whl
• poetry run ruff check .
• poetry run mypy .
• poetry run pytest -W error::FutureWarning
• Python 3.11 + pandas 2.2.3: tests + pip check
• Python 3.11 + pandas 3.0.3: tests + pip check
• Python 3.14 + pandas 2.3.3: tests + pip check
• Python 3.14 + pandas 3.0.3: tests + pip check
• Isolated workflow-order checks: Python 3.14 + pandas 2.3.3 and Python 3.14 + pandas 3.0.3 both lock before install, install cleanly, pass tests, and pass pip check.

Output Equivalence

Compared origin/master against this PR in isolated Python 3.11.11 worktrees using each side's lockfile. The serialized output diff was empty for correlation_contribution, neutralize, _validate_ids, numerai_corr, and the same-name remap_ids test setup. Both environments used pandas 2.3.1 and numpy 2.3.2; the PR lock uses scikit-learn 1.9.0 while origin/master uses 1.7.1.

[Copilot]

Pull request overview

This PR updates Numerai Tools’ dependency and CI matrix to support both pandas 2.x and 3.x while addressing a few pandas-3-related compatibility issues in core scoring/submission code and tests.

Changes:

• Relax runtime pandas constraint to >=2.2.2,<4.0.0 and update dev stubs accordingly.
• Expand GitHub Actions CI to test multiple pandas ranges (2.2.x, 2.3.x, 3.x) across supported Python versions (including 3.14 where applicable).
• Adjust scoring/submission logic and tests to avoid pandas 3 behavioral changes (e.g., copy-on-write / indexing semantics).

Reviewed changes

Copilot reviewed 6 out of 7 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
tests/test_submissions.py	Tweaks remap_ids test setup for pandas compatibility (but currently leaves the test logically incorrect).
tests/test_scoring.py	Updates correlation test indexing to be pandas-3-friendly (.iloc).
pyproject.toml	Relaxes pandas and pandas-stubs constraints to allow pandas 3.x.
poetry.lock	Refreshes lockfile for new dependency ranges / newer resolved versions.
numerai_tools/submissions.py	Avoids in-place mutation by using assign when string-casting id columns.
numerai_tools/scoring.py	Avoids pandas matmul/indexing pitfalls; reduces copy-on-write issues in neutralize.
.github/workflows/test-and-deploy.yml	Adds pandas-version matrix, Python 3.14 coverage, and FutureWarning-as-error test runs.

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[Copilot]

Pull request overview

Copilot reviewed 6 out of 7 changed files in this pull request and generated no new comments.