From c7e81f5472a7fc490c86e5bfa3084a1915e63dee Mon Sep 17 00:00:00 2001
From: Omer Danziger <57575138+Omerdan03@users.noreply.github.com>
Date: Mon, 12 Jul 2021 09:15:14 +0300
Subject: [PATCH 1/2] Update series.py

fix bug where inplace return the series.

https://github.com/pandas-dev/pandas/issues/42481
---
 pandas/core/series.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pandas/core/series.py b/pandas/core/series.py
index 87d419d1f3d41..2aa9bb8bc2188 100644
--- a/pandas/core/series.py
+++ b/pandas/core/series.py
@@ -1760,7 +1760,7 @@ def _set_name(self, name, inplace=False) -> Series:
         inplace = validate_bool_kwarg(inplace, "inplace")
         ser = self if inplace else self.copy()
         ser.name = name
-        return ser
+        return ser if not inplace else None
 
     @Appender(
         """

From 6c5e503fd0d724e31b84090fa8682c3163da5f44 Mon Sep 17 00:00:00 2001
From: Omer Danziger <57575138+Omerdan03@users.noreply.github.com>
Date: Mon, 12 Jul 2021 10:17:50 +0300
Subject: [PATCH 2/2] Update series.py

change return order
---
 pandas/core/series.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pandas/core/series.py b/pandas/core/series.py
index 2aa9bb8bc2188..37fb6616ef746 100644
--- a/pandas/core/series.py
+++ b/pandas/core/series.py
@@ -1760,7 +1760,7 @@ def _set_name(self, name, inplace=False) -> Series:
         inplace = validate_bool_kwarg(inplace, "inplace")
         ser = self if inplace else self.copy()
         ser.name = name
-        return ser if not inplace else None
+        return None if inplace else ser
 
     @Appender(
         """