From 4ccfe2f4aa1805b3cb8c0956f6a2d0332d0d1158 Mon Sep 17 00:00:00 2001
From: Oleksandr Pavlyk <oleksandr.pavlyk@intel.com>
Date: Sat, 29 Sep 2018 23:11:45 -0500
Subject: [PATCH] Prediction label retrieval should be moved to after the first
 fit call

---
 sklearn/utils/estimator_checks.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sklearn/utils/estimator_checks.py b/sklearn/utils/estimator_checks.py
index 54369033a75d3..d886c7dff8f1e 100644
--- a/sklearn/utils/estimator_checks.py
+++ b/sklearn/utils/estimator_checks.py
@@ -1290,10 +1290,10 @@ def check_clustering(name, clusterer_orig, readonly_memmap=False):
 
     # fit
     clusterer.fit(X)
+    pred = clusterer.labels_
     # with lists
     clusterer.fit(X.tolist())
 
-    pred = clusterer.labels_
     assert_equal(pred.shape, (n_samples,))
     assert_greater(adjusted_rand_score(pred, y), 0.4)
     # fit another time with ``fit_predict`` and compare results