From 0a7b7e30ff15426c99087a4e191234e02b2ed4d6 Mon Sep 17 00:00:00 2001
From: Vinay Sajip <vinay_sajip@yahoo.co.uk>
Date: Sat, 3 Sep 2016 15:56:07 +0100
Subject: [PATCH] Fixes #27937: optimise code used in all logging calls.

---
 Lib/logging/__init__.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/Lib/logging/__init__.py b/Lib/logging/__init__.py
index 4d872bd044d..0c5c2ec28f9 100644
--- a/Lib/logging/__init__.py
+++ b/Lib/logging/__init__.py
@@ -130,8 +130,9 @@ def getLevelName(level):
 
     Otherwise, the string "Level %s" % level is returned.
     """
-    # See Issue #22386 for the reason for this convoluted expression
-    return _levelToName.get(level, _nameToLevel.get(level, ("Level %s" % level)))
+    # See Issues #22386 and #27937 for why it's this way
+    return (_levelToName.get(level) or _nameToLevel.get(level) or
+            "Level %s" % level)
 
 def addLevelName(level, levelName):
     """