> [!META]- Inline Metadata > [status:: boat] > [source:: ] > [tags:: #note/evergreen #state/boat #concepts/aws/sagemaker #concepts/programming/logging #concepts/containerization/docker] > [up:: [[Docker MOC]] [[Sagemaker MOC]]] Unlike in [[AWS Lambda]] code, in Sagemaker training jobs using custom Python code in Docker containers logging won't work unless a stream handler is specifically added to the logger. ```python logger = logging.getLogger("__main__") stream_handler = logging.StreamHandler(sys.stdout) logger.addHandler(stream_handler) ```