old_contents: # encoding: utf-8
  
  """
  .. codeauthor:: Tsuyoshi Hombashi <gogogo.vm@gmail.com>
  """
  
  from __future__ import absolute_import
  from __future__ import unicode_literals
  
  import logbook
  
  
  logger = logbook.Logger("SimpleSQLie")
  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. Using
      `logbook <http://logbook.readthedocs.io/en/stable/>`__ module for logging.
  
      :param int log_level:
          One of the log level of
          `logbook <http://logbook.readthedocs.io/en/stable/api/base.html>`__.
          Disabled logging if ``log_level`` is ``logbook.NOTSET``.
      """
  
      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 <gogogo.vm@gmail.com>
  """
  
  from __future__ import absolute_import
  from __future__ import unicode_literals
  
  import dataproperty
  import logbook
  import pytablereader
  
  
  logger = logbook.Logger("SimpleSQLie")
  logger.disable()
  
  
  def set_logger(is_enable):
      if is_enable != logger.disabled:
          return
  
      if is_enable:
          logger.enable()
      else:
          logger.disable()
  
      dataproperty.set_logger(is_enable)
      pytablereader.set_logger(is_enable)
  
  
  def set_log_level(log_level):
      """
      Set logging level of this module. Using
      `logbook <http://logbook.readthedocs.io/en/stable/>`__ module for logging.
  
      :param int log_level:
          One of the log level of
          `logbook <http://logbook.readthedocs.io/en/stable/api/base.html>`__.
          Disabled logging if ``log_level`` is ``logbook.NOTSET``.
      """
  
      if log_level == logger.level:
          return
  
      if log_level == logbook.NOTSET:
          set_logger(is_enable=False)
      else:
          set_logger(is_enable=True)
          logger.level = log_level
  
      dataproperty.set_log_level(log_level)
      pytablereader.set_log_level(log_level)
  
subject: Modify to avoid excessive logger initialization