Revert "FIX Explicitly ignore SparseEfficiencyWarning in DBSCAN (scikit-learn#13539)"

Xing · web-flow · commit 00f2dc70ee45 · 2019-04-28T15:16:17.000-04:00
This reverts commit cd7764d.
diff --git a/sklearn/cluster/dbscan_.py b/sklearn/cluster/dbscan_.py
@@ -10,11 +10,11 @@
 # License: BSD 3 clause
 
 import numpy as np
-import warnings
 from scipy import sparse
 
 from ..base import BaseEstimator, ClusterMixin
 from ..utils import check_array, check_consistent_length
+from ..utils.testing import ignore_warnings
 from ..neighbors import NearestNeighbors
 
 from ._dbscan_inner import dbscan_inner
@@ -145,8 +145,7 @@ def dbscan(X, eps=0.5, min_samples=5, metric='minkowski', metric_params=None,
         X.sum_duplicates()  # XXX: modifies X's internals in-place
 
         # set the diagonal to explicit values, as a point is its own neighbor
-        with warnings.catch_warnings():
-            warnings.simplefilter('ignore', sparse.SparseEfficiencyWarning)
+        with ignore_warnings():
             X.setdiag(X.diagonal())  # XXX: modifies X's internals in-place
 
         X_mask = X.data <= eps
