diff --git a/examples/test_mqtt_messaging.py b/examples/test_mqtt_messaging.py
index 9c38f37..7a04d73 100644
--- a/examples/test_mqtt_messaging.py
+++ b/examples/test_mqtt_messaging.py
@@ -122,7 +122,9 @@ def message_handler(topic: str, message: dict):
                     await mqtt_client.subscribe(topic, message_handler)
                     print(f"   ✅ Subscribed to: {topic}")
                 except Exception as e:
-                    print(f"   ⚠️ Failed to subscribe to {topic}: {e}")
+                    print(
+                        f"   ⚠️ Failed to subscribe to device topic (type: {device_type}): {e}"
+                    )
 
             print()
 
diff --git a/src/nwp500/__init__.py b/src/nwp500/__init__.py
index c384bc5..dde7ecf 100644
--- a/src/nwp500/__init__.py
+++ b/src/nwp500/__init__.py
@@ -1,4 +1,3 @@
-import sys
 from importlib.metadata import PackageNotFoundError, version  # pragma: no cover
 
 try: