From 2d0cd2817e868e1975b1cebf183b88226a22c01d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A1ssia=20Sampaio?=
 <4005687+cassiasamp@users.noreply.github.com>
Date: Thu, 13 Jul 2023 00:00:24 -0300
Subject: [PATCH] [doc] Fux learning_to_rank.rst (#9381)

just adding one missing bracket
---
 doc/tutorials/learning_to_rank.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/doc/tutorials/learning_to_rank.rst b/doc/tutorials/learning_to_rank.rst
index e0c27b87b..965a623c3 100644
--- a/doc/tutorials/learning_to_rank.rst
+++ b/doc/tutorials/learning_to_rank.rst
@@ -70,7 +70,7 @@ Please note that, as of writing, there's no learning-to-rank interface in scikit
 
 .. code-block:: python
 
-  df = pd.DataFrame(X, columns=[str(i) for i in range(X.shape[1]))
+  df = pd.DataFrame(X, columns=[str(i) for i in range(X.shape[1])])
   df["qid"] = qid
   ranker.fit(df, y)  # No need to pass qid as a separate argument