Issue #28335: made minor improvement to implementation.

diff --git a/Lib/logging/config.py b/Lib/logging/config.py
index 65d70daf5a59c1c515dbb435683bbd73429a08ca..917178e5118c36e06bbb80edc86808aa24a27e2d 100644 (file)
--- a/Lib/logging/config.py
+++ b/Lib/logging/config.py
@@ -559,7 +559,7 @@ class DictConfigurator(BaseConfigurator):
                         handler.name = name
                         handlers[name] = handler
                     except Exception as e:
-                        if 'Unable to set target handler' in str(e):
+                        if 'target not configured yet' in str(e.__cause__):
                             deferred.append(name)
                         else:
                             raise ValueError('Unable to configure handler '