old_contents: # encoding: utf-8
  
  """
  .. codeauthor:: Tsuyoshi Hombashi <tsuyoshi.hombashi@gmail.com>
  """
  
  from __future__ import absolute_import
  from __future__ import unicode_literals
  
  import logbook
  
  
  LOG_FORMAT_STRING = "[{record.level_name}] {record.channel}: {record.message}"
  
  
  logger = logbook.Logger("pingparsing")
  logger.disable()
  
  
  def set_logger(is_enable):
      if is_enable:
          logger.enable()
      else:
          logger.disable()
  
  
  def set_log_level(log_level):
      """
      Set logging level of this module. The module using
      `logbook <http://logbook.readthedocs.io/en/stable/>`__ module for logging.
  
      :param int log_level:
          One of the log level of the
          `logbook <http://logbook.readthedocs.io/en/stable/api/base.html>`__.
          Disabled logging if the ``log_level`` is ``logbook.NOTSET``.
      :raises LookupError: If ``log_level`` is an invalid value.
      """
  
      # validate log level
      logbook.get_level_name(log_level)
  
      if log_level == logbook.NOTSET:
          set_logger(is_enable=False)
      else:
          set_logger(is_enable=True)
          logger.level = log_level
  
new_contents: # encoding: utf-8
  
  """
  .. codeauthor:: Tsuyoshi Hombashi <tsuyoshi.hombashi@gmail.com>
  """
  
  from __future__ import absolute_import
  from __future__ import unicode_literals
  
  import logbook
  
  
  LOG_FORMAT_STRING = "[{record.level_name}] {record.channel}: {record.message}"
  
  
  logger = logbook.Logger("pingparsing")
  logger.disable()
  
  
  def set_logger(is_enable):
      if is_enable:
          logger.enable()
      else:
          logger.disable()
  
  
  def set_log_level(log_level):
      """
      Set logging level of this module. The module using
      `logbook <http://logbook.readthedocs.io/en/stable/>`__ module for logging.
  
      :param int log_level:
          One of the log level of the
          `logbook <http://logbook.readthedocs.io/en/stable/api/base.html>`__.
          Disabled logging if the ``log_level`` is ``logbook.NOTSET``.
      :raises LookupError: If ``log_level`` is an invalid value.
      """
  
      # validate log level
      logbook.get_level_name(log_level)
  
      if log_level == logbook.NOTSET:
          set_logger(is_enable=False)
      else:
          set_logger(is_enable=True)
  
      logger.level = log_level
  
subject: Modify logging setup