Handle OpenML checksum failures in sklearn examples

[csadorf]

Treats OpenML dataset checksum mismatches as network xfails in the scikit-learn examples runner.

Closes #8358

[coderabbitai]

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📥 Commits

Reviewing files that changed from the base of the PR and between 4065bdc and 5b9c516.

📒 Files selected for processing (1)

• python/cuml/cuml_accel_tests/upstream/scikit-learn/example_collector.py

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📝 Walkthrough

Summary by CodeRabbit

• Bug Fixes
  • Improved handling of scikit-learn example failures caused by OpenML download issues.
  • These cases are now recognized as network-related errors and marked appropriately instead of being treated as hard test failures.

Walkthrough

This PR adds a new substring to the _NETWORK_ERROR_PATTERNS list in example_collector.py, enabling detection of OpenML MD5 checksum mismatch error messages so affected scikit-learn example test failures are classified as network errors and xfailed instead of failing.

Changes

Network error pattern update

Layer / File(s)	Summary
Add OpenML checksum error pattern python/cuml/cuml_accel_tests/upstream/scikit-learn/example_collector.py	Added a substring matching OpenML MD5 checksum mismatch messages to _NETWORK_ERROR_PATTERNS, causing matching failures to be treated as ExampleNetworkError and xfailed.

Estimated code review effort: 1 (Trivial) | ~2 minutes

Possibly related PRs

• rapidsai/cuml#8205: Both PRs modify the same _network_error_pattern detection logic in example_collector.py for OpenML-related failures.
• rapidsai/cuml#8216: Both PRs update _NETWORK_ERROR_PATTERNS in example_collector.py to recognize OpenML-related lookup failures as network errors.

Suggested labels: ci, improvement

Suggested reviewers: viclafargue, jcrist, betatim

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly summarizes the change to treat OpenML checksum failures as handled sklearn example errors.
Description check	✅ Passed	The description is directly related to the checksum-mismatch xfail handling added in the examples runner.
Linked Issues check	✅ Passed	The change matches #8358 by classifying OpenML MD5 checksum mismatches as network xfails instead of hard failures.
Out of Scope Changes check	✅ Passed	The PR makes a narrowly scoped pattern update with no evident unrelated changes.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[jcrist]

/merge