bpo-37742: Return the root logger when logging.getLogger('root') is c… (#15077)

* bpo-37742: Return the root logger when logging.getLogger('root') is called.

* Added type check guard on logger name in logging.getLogger() and refined a test.

1 files changed, 2 insertions, 3 deletions

diff --git a/Lib/logging/__init__.py b/Lib/logging/__init__.py
index 645e0b3c3a..62a87a71b1 100644
--- a/Lib/logging/__init__.py
+++ b/Lib/logging/__init__.py
@@ -2024,10 +2024,9 @@ def getLogger(name=None):
 
     If no name is specified, return the root logger.
     """
-    if name:
-        return Logger.manager.getLogger(name)
-    else:
+    if not name or isinstance(name, str) and name == root.name:
         return root
+    return Logger.manager.getLogger(name)
 
 def critical(msg, *args, **kwargs):
     """