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Remove cupy.array_equal, since it's not compatible with cuPy 7.8 #6528

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merged 1 commit into from Dec 18, 2020
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Remove cupy.array_equal, since it's not compatible with cuPy 7.8 #6528

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8 changes: 6 additions & 2 deletions python-package/xgboost/sklearn.py
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Expand Up @@ -852,14 +852,18 @@ def fit(self, X, y, *, sample_weight=None, base_margin=None,
self.classes_ = cp.unique(y.values)
self.n_classes_ = len(self.classes_)
can_use_label_encoder = False
if not cp.array_equal(self.classes_, cp.arange(self.n_classes_)):
expected_classes = cp.arange(self.n_classes_)
if (self.classes_.shape != expected_classes.shape or
not (self.classes_ == expected_classes).all()):
raise ValueError(label_encoding_check_error)
elif _is_cupy_array(y):
import cupy as cp # pylint: disable=E0401
self.classes_ = cp.unique(y)
self.n_classes_ = len(self.classes_)
can_use_label_encoder = False
if not cp.array_equal(self.classes_, cp.arange(self.n_classes_)):
expected_classes = cp.arange(self.n_classes_)
if (self.classes_.shape != expected_classes.shape or
not (self.classes_ == expected_classes).all()):
raise ValueError(label_encoding_check_error)
else:
self.classes_ = np.unique(y)
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