Merged fix for #13361 from 3.2.

Lib/logging/__init__.py

@@ -1096,6 +1096,8 @@ class Manager(object):
         placeholder to now point to the logger.
         """
         rv = None
+        if not isinstance(name, str):
+            raise ValueError('A logger name must be a string')
         _acquireLock()
         try:
             if name in self.loggerDict:

Lib/test/test_logging.py

@@ -310,6 +310,8 @@ class BuiltinLevelsTest(BaseTest):
             ('INF.BADPARENT', 'INFO', '4'),
         ])
 
+    def test_invalid_name(self):
+        self.assertRaises(ValueError, logging.getLogger, any)
 
 class BasicFilterTest(BaseTest):