From 47d2da6caba379f586e4c905204c5e2f5a03fe7c Mon Sep 17 00:00:00 2001
From: gfyoung <gfyoung17+GitHub@gmail.com>
Date: Mon, 5 Nov 2018 02:19:28 -0800
Subject: [PATCH] DOC: Fix syntax error in groupby docs (#23498)

Follow-up to gh-23394.
---
 doc/source/groupby.rst | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/doc/source/groupby.rst b/doc/source/groupby.rst
index 0a896bac0f2d72..17a723e2a2f425 100644
--- a/doc/source/groupby.rst
+++ b/doc/source/groupby.rst
@@ -133,7 +133,8 @@ but the specified columns
 .. ipython:: python
 
    df2 = df.set_index(['A', 'B'])
-   grouped = df2.groupby(level=df2.index.names.difference(['B'])
+   grouped = df2.groupby(level=df2.index.names.difference(['B']))
+   grouped.sum()
 
 These will split the DataFrame on its index (rows). We could also split by the
 columns: