MNT Make files private in cross_decomposition (scikit-learn#15285)

.gitignore

@@ -114,6 +114,9 @@ sklearn/mixture/base.py
 sklearn/mixture/gaussian_mixture.py
 sklearn/mixture/bayesian_mixture.py
 
+sklearn/cross_decomposition/cca_.py
+sklearn/cross_decomposition/pls_.py
+
 sklearn/svm/base.py
 sklearn/svm/classes.py
 sklearn/svm/bounds.py

sklearn/_build_utils/deprecated_modules.py

@@ -62,6 +62,11 @@
     ('_bayesian_mixture', 'sklearn.mixture.bayesian_mixture',
      'sklearn.mixture', 'BayesianGaussianMixture'),
 
+    ('_cca_', 'sklearn.cross_decomposition.cca_',
+     'sklearn.cross_decomposition', 'CCA'),
+    ('_pls_', 'sklearn.cross_decomposition.pls_',
+     'sklearn.cross_decomposition', 'PLSSVD'),
+
     ('_base', 'sklearn.svm.base', 'sklearn.svm', 'BaseLibSVM'),
     ('_bounds', 'sklearn.svm.bounds', 'sklearn.svm', 'l1_min_c'),
     ('_classes', 'sklearn.svm.classes', 'sklearn.svm', 'SVR'),

sklearn/cross_decomposition/__init__.py

@@ -1,2 +1,4 @@
-from .pls_ import *  # noqa
-from .cca_ import *  # noqa
+from ._pls_ import PLSCanonical, PLSRegression, PLSSVD
+from ._cca_ import CCA
+
+__all__ = ['PLSCanonical', 'PLSRegression', 'PLSSVD', 'CCA']

sklearn/cross_decomposition/cca_.py → sklearn/cross_decomposition/_cca_.py

@@ -1,4 +1,4 @@
-from .pls_ import _PLS
+from ._pls_ import _PLS
 from ..base import _UnstableArchMixin
 
 __all__ = ['CCA']

sklearn/cross_decomposition/tests/test_pls.py

@@ -6,7 +6,8 @@
                                    assert_array_equal, assert_raise_message,
                                    assert_warns)
 from sklearn.datasets import load_linnerud
-from sklearn.cross_decomposition import pls_, CCA
+from sklearn.cross_decomposition import _pls_ as pls_
+from sklearn.cross_decomposition import CCA
 from sklearn.preprocessing import StandardScaler
 from sklearn.utils import check_random_state
 from sklearn.exceptions import ConvergenceWarning