log.py 文件源码

def get_logger(name=None, level=None, stream=DEFAULT_STREAM,
               clobber_root_handler=True, logger_factory=None,
               wrapper_class=None):
    """Configure and return a logger with structlog and stdlib."""
    _configure_logger(
        logger_factory=logger_factory,
        wrapper_class=wrapper_class)
    log = structlog.get_logger(name)
    root_logger = logging.root
    if log == root_logger:
        if not _has_streamhandler(root_logger, level=level, stream=stream):
            stream_handler = logging.StreamHandler(stream)
            stream_handler.setLevel(level)
            stream_handler.setFormatter(logging.Formatter(fmt=LOG_FORMAT))
            root_logger.addHandler(stream_handler)
        else:
            if clobber_root_handler:
                for handler in root_logger.handlers:
                    handler.setFormatter(logging.Formatter(fmt=LOG_FORMAT))
    if level:
        log.setLevel(level)
    return log