From 02ac01eb97fb13d56d7d1639ebe4a4948f5caad6 Mon Sep 17 00:00:00 2001
From: Michael Bilow <michael.k.bilow@gmail.com>
Date: Tue, 11 Aug 2015 12:56:18 -0700
Subject: [PATCH] Allows set_index() to take an Index as an argument (#10797)

---
 pandas/core/frame.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pandas/core/frame.py b/pandas/core/frame.py
index fe9c9bece1f79..fd013eca10f82 100644
--- a/pandas/core/frame.py
+++ b/pandas/core/frame.py
@@ -2628,7 +2628,7 @@ def set_index(self, keys, drop=True, append=False, inplace=False,
         -------
         dataframe : DataFrame
         """
-        if not isinstance(keys, list):
+        if not com.is_list_like(keys):
             keys = [keys]
 
         if inplace: