def configure_logging(log_level=None, log_file=None, simplified_console_logs=False):
    """
    This should be called once as early as possible in app startup to configure logging handlers and formatting.

    :param log_level: The level at which to record log messages (DEBUG|INFO|NOTICE|WARNING|ERROR|CRITICAL)
    :type log_level: str
    :param log_file: The file to write logs to, or None to disable logging to a file
    :type log_file: str | None
    :param simplified_console_logs: Whether or not to use the simplified logging format and coloring
    :type simplified_console_logs: bool
    """
    # Set datetimes in log messages to be local timezone instead of UTC
    logbook.set_datetime_format('local')

    # Redirect standard lib logging to capture third-party logs in our log files (e.g., tornado, requests)
    logging.root.setLevel(logging.WARNING)  # don't include DEBUG/INFO/NOTICE-level logs from third parties
    logbook.compat.redirect_logging(set_root_logger_level=False)

    # Add a NullHandler to suppress all log messages lower than our desired log_level. (Otherwise they go to stderr.)
    NullHandler().push_application()

    log_level = log_level or Configuration['log_level']
    format_string, log_colors = _LOG_FORMAT_STRING, _LOG_COLORS
    if simplified_console_logs:
        format_string, log_colors = _SIMPLIFIED_LOG_FORMAT_STRING, _SIMPLIFIED_LOG_COLORS

    # handler for stdout
    log_handler = _ColorizingStreamHandler(
        stream=sys.stdout,
        level=log_level,
        format_string=format_string,
        log_colors=log_colors,
        bubble=True,
    )
    log_handler.push_application()

    # handler for log file
    if log_file:
        fs.create_dir(os.path.dirname(log_file))
        previous_log_file_exists = os.path.exists(log_file)

        event_handler = _ColorizingRotatingFileHandler(
            filename=log_file,
            level=log_level,
            format_string=_LOG_FORMAT_STRING,
            log_colors=_LOG_COLORS,
            bubble=True,
            max_size=Configuration['max_log_file_size'],
            backup_count=Configuration['max_log_file_backups'],
        )
        event_handler.push_application()
        if previous_log_file_exists:
            # Force application to create a new log file on startup.
            event_handler.perform_rollover(increment_logfile_counter=False)
        else:
            event_handler.log_application_summary()
dataset/ETHPy150Open box/ClusterRunner/app/util/log.py/configure_logging/original