Function get_logger

monai/apps/utils.py:51–76

Get a `module_name` logger with the specified format and date format. By default, the logger will print to `stdout` at the INFO level. If `module_name` is `None`, return the root logger. `fmt` and `datafmt` are passed to a `logging.Formatter` object (https://docs.python.org/3/li

(
    module_name: str = "monai.apps",
    fmt: str = DEFAULT_FMT,
    datefmt: str | None = None,
    logger_handler: logging.Handler | None = None,
)

def get_logger(
    module_name: str = "monai.apps",
    fmt: str = DEFAULT_FMT,
    datefmt: str | None = None,
    logger_handler: logging.Handler | None = None,
) -> logging.Logger:
    """
    Get a `module_name` logger with the specified format and date format.
    By default, the logger will print to `stdout` at the INFO level.
    If `module_name` is `None`, return the root logger.
    `fmt` and `datafmt` are passed to a `logging.Formatter` object
    (https://docs.python.org/3/library/logging.html#formatter-objects).
    `logger_handler` can be used to add an additional handler.
    """
    adds_stdout_handler = module_name is not None and module_name not in logging.root.manager.loggerDict
    logger = logging.getLogger(module_name)
    logger.propagate = False
    logger.setLevel(logging.INFO)
    if adds_stdout_handler:  # don't add multiple stdout or add to the root
        handler = logging.StreamHandler(sys.stdout)
        formatter = logging.Formatter(fmt=fmt, datefmt=datefmt)
        handler.setFormatter(formatter)
        logger.addHandler(handler)
    if logger_handler is not None:
        logger.addHandler(logger_handler)
    return logger


# apps module-level default logger