From e4332edeabb561f4ffe41afd19528b43ab5f7e7d Mon Sep 17 00:00:00 2001
From: Raghav R V <ragvrv@gmail.com>
Date: Tue, 20 Oct 2015 11:23:04 +0200
Subject: [PATCH] DOC Add description for UndefinedMetricWarning

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

diff --git a/sklearn/exceptions.py b/sklearn/exceptions.py
index 0bd15aba1a0b0..2a99d67a4703e 100644
--- a/sklearn/exceptions.py
+++ b/sklearn/exceptions.py
@@ -114,4 +114,4 @@ class NonBLASDotWarning(EfficiencyWarning):
 
 
 class UndefinedMetricWarning(UserWarning):
-    pass
+    """Warning used when the metric is invalid"""