Log to stderr instead of stdout by default

Author: frereit

CHANGELOG.rst

@@ -10,6 +10,10 @@ and this project adheres to `Semantic Versioning <https://semver.org/spec/v2.0.0
 `Unreleased`_
 =============
 
+Changed
+-------
+* Log to stderr instead of stdout when ``BLEAK_LOGGING`` is enabled.
+
 `0.22.3`_ (2024-10-05)
 ======================
 

bleak/__init__.py

@@ -70,7 +70,7 @@
 _logger.addHandler(logging.NullHandler())
 if bool(os.environ.get("BLEAK_LOGGING", False)):
     FORMAT = "%(asctime)-15s %(name)-8s %(threadName)s %(levelname)s: %(message)s"
-    handler = logging.StreamHandler(sys.stdout)
+    handler = logging.StreamHandler(sys.stderr)
     handler.setLevel(logging.DEBUG)
     handler.setFormatter(logging.Formatter(fmt=FORMAT))
     _logger.addHandler(handler)