From d116279bb571f309f011f6d67824866590c4f300 Mon Sep 17 00:00:00 2001
From: James Lamb <jaylamb20@gmail.com>
Date: Tue, 17 Dec 2024 23:26:43 -0600
Subject: [PATCH] Update python-package/lightgbm/engine.py

Co-authored-by: Nikita Titov <nekit94-08@mail.ru>
---
 python-package/lightgbm/engine.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/python-package/lightgbm/engine.py b/python-package/lightgbm/engine.py
index 64f44751b5d3..cca29034b39c 100644
--- a/python-package/lightgbm/engine.py
+++ b/python-package/lightgbm/engine.py
@@ -607,7 +607,7 @@ def _agg_cv_result(
     #     (<dataset_name>, <metric_name>, mean(<values>), <is_higher_better>, std_dev(<values>))
     # ]
     return [
-        (k[0], k[1], float(np.mean(metric_values[k])), metric_types[k], float(np.std(metric_values[k])))
+        (k[0], k[1], float(np.mean(v)), metric_types[k], float(np.std(v)))
         for k, v in metric_values.items()
     ]