Fix for numpy 2.4 scalar conversion

[ethanglaser]

Description

As of numpy 2.4, TypeError is raised when converting a numpy array of ndim > 0 to scalar, leading to an error in daal4py svm.

See numpy/numpy#29841 and https://github.com/numpy/numpy/releases/tag/v2.4.0 for details

Checklist:

Completeness and readability

• I have commented my code, particularly in hard-to-understand areas.
• I have updated the documentation to reflect the changes or created a separate PR with updates and provided its number in the description, if necessary.
• Git commit message contains an appropriate signed-off-by string (see CONTRIBUTING.md for details).
• I have resolved any merge conflicts that might occur with the base branch.

Testing

• I have run it locally and tested the changes extensively.
• All CI jobs are green or I have provided justification why they aren't.
• I have extended testing suite if new functionality was introduced in this PR.

Performance

• I have measured performance for affected algorithms using scikit-learn_bench and provided at least a summary table with measured data, if performance change is expected.
• I have provided justification why performance and/or quality metrics have changed or why changes are not expected.
• I have extended the benchmarking suite and provided a corresponding scikit-learn_bench PR if new measurable functionality was introduced in this PR.

[ethanglaser]

/intelci: run

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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[Vika-F]

LGTM

I hope some day daal4py will be removed entirely, so there will be no need in fixing it.

[david-cortes-intel]

/intelci: run

[ethanglaser]

@mergify backport rls/2025.10.0-rls

[mergify]

backport rls/2025.10.0-rls

✅ Backports have been created

Details

• #2874 Fix for numpy 2.4 scalar conversion (backport #2868) has been created for branch rls/2025.10.0-rls

[ethanglaser]

@mergify backport rls/2025.10.1-rls

[mergify]

backport rls/2025.10.1-rls

✅ Backports have been created

Details

• #2875 Fix for numpy 2.4 scalar conversion (backport #2868) has been created for branch rls/2025.10.1-rls