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A fast, distributed, high performance gradient boosting (GBT, GBDT, GBRT, GBM or MART) framework based on decision tree algorithms, used for ranking, classification and many other machine learning tasks.
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[python-package] [ci] remove runtime docstring building, test with different PYTHONOPTIMIZE levels #7403

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jameslamb opened 9:51am on August 20, 2026 wants to merge 631 Δ into microsoft/lightgbm main from
python/no-runtime-doc-parsing

Pull request #7403 quality checks

Code files and functions touched by this pull request are analyzed below.

Quality targets

How does this pull request compare to chosen code quality targets? Read more about code quality targets.

Target name Target value This PR
Maximum Diff Delta per PR 500 631
Maximum comment count per PR 10 6
Pull request maximum business days between activity 3 19
Pull request maximum business days open 5 33

Coupled files

Are there any files from this commit that are always committed alongside another file? This often suggests that there exists code coupling to potentially remove. Read more about code coupling

No file coupling detected. 🎉

Biggest files changes in pull request

Path View whole file Lines removed Lines added Final line count
python-package/lightgbm/sklearn.py BeforeAfter 254 994 2737
tests/python_package_test/test_sklearn.py BeforeAfter 1 31 2522
python-package/lightgbm/dask.py BeforeAfter 139 851 2461
tests/python_package_test/test_dask.py BeforeAfter 0 32 1924
tests/python_package_test/utils.py BeforeAfter 0 26 313
python-package/lightgbm/engine.py BeforeAfter 0 0 ---
.ci/test.sh BeforeAfter 0 8 353
python-package/lightgbm/callback.py BeforeAfter 0 0 511
docs/build-docs.sh BeforeAfter 0 0 27

️ Biggest functions grown or shrunk by pull request

Which functions had their line count change as part of this pull request?

Qualified function name View whole function Lines removed Lines added Final line count
_train BeforeAfter 1 0 431
python-package/lightgbm/compat.py::_LGBMModelBase::LGBMModel::fit BeforeAfter 23 136 323
LGBMClassifier::fit BeforeAfter 0 121 208
python-package/lightgbm/compat.py::_LGBMModelBase::LGBMModel::LGBMRanker::fit BeforeAfter 0 134 186
DaskLGBMRanker::__init__ BeforeAfter 0 121 170
DaskLGBMRegressor::__init__ BeforeAfter 0 117 170
packages/client/src/generation/TSClient/Enum.ts::Enum::DaskLGBMClassifier::__init__ BeforeAfter 0 105 170
LGBMRegressor::__init__ BeforeAfter 10 115 164
LGBMClassifier::__init__ BeforeAfter 2 116 164
python-package/lightgbm/compat.py::_LGBMModelBase::LGBMModel::LGBMRanker::__init__ BeforeAfter 0 118 164
DaskLGBMRanker::fit BeforeAfter 0 114 162
LGBMRegressor::fit BeforeAfter 9 118 156
packages/client/src/generation/TSClient/Enum.ts::Enum::DaskLGBMClassifier::fit BeforeAfter 0 36 143
DaskLGBMRegressor::fit BeforeAfter 0 98 139
test_check_is_fitted::test_feature_names_in_and_predict_warning BeforeAfter 0 9 108
python-package/lightgbm/compat.py::_LGBMModelBase::LGBMModel::predict BeforeAfter 0 44 105
test_check_is_fitted::test_feature_names_in_and_predict_warning::test_estimator_fit_docstrings_are_consistent BeforeAfter 0 11 100
LGBMClassifier::predict_proba BeforeAfter 0 44 81
LGBMClassifier::predict BeforeAfter 0 44 70
packages/client/src/generation/TSClient/Enum.ts::Enum::DaskLGBMClassifier::predict_proba BeforeAfter 0 44 69
DaskLGBMRanker::predict BeforeAfter 0 44 68
DaskLGBMRegressor::predict BeforeAfter 0 44 68
packages/client/src/generation/TSClient/Enum.ts::Enum::DaskLGBMClassifier::predict BeforeAfter 0 15 68
test_check_is_fitted::test_fit_only_raises_num_rounds_warning_when_expected BeforeAfter 0 2 49
python-package/lightgbm/compat.py::_LGBMModelBase::_validate_eval_set_Xy BeforeAfter 22 0 33
tests/python_package_test/test_sklearn.py::custom_dummy_obj::test_grid_search BeforeAfter 0 2 25
make_synthetic_regression::assert_docstrings_equal BeforeAfter 0 8 22
make_synthetic_regression::assert_docstrings_equal BeforeAfter 0 14 21
python-package/lightgbm/compat.py::_LGBMModelBase::_extract_evaluation_meta_data BeforeAfter 11 0 21
make_synthetic_regression::assert_docstrings_equal BeforeAfter 0 1 21
tests/python_package_test/test_sklearn.py::custom_dummy_obj::test_xendcg BeforeAfter 0 1 19
tests/python_package_test/test_sklearn.py::custom_dummy_obj::test_classifier_predict_and_predict_proba_docstrings_are_consistent BeforeAfter 1 0 17
test_check_is_fitted::_tested_estimators::test_classifier_predict_and_predict_proba_docstrings_are_consistent BeforeAfter 0 1 16
tests/python_package_test/test_sklearn.py::custom_dummy_obj::test_eval_at_aliases BeforeAfter 0 8 10
python-package/lightgbm/compat.py::_LGBMModelBase::LGBMModel::n_estimators_ BeforeAfter 2 0 10
test_check_is_fitted::test_feature_names_in_and_predict_warning::test_estimator_docstrings_that_should_be_identical BeforeAfter 0 5 3
make_synthetic_regression::assert_datasets_equal BeforeAfter 0 2 3
tests/python_package_test/test_sklearn.py::custom_dummy_obj::test_estimator_docstrings_that_should_be_identical BeforeAfter 0 1 3
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