old_contents: """
  Logging
  =======
  """
  import logging
  
  import colorlog
  
  
  def init_logger(level, printout=True):
      """
      Initialize app logger to configure its level/handler/formatter/etc..
  
      Todo:
          * A mean to raise click.Abort or sys.exit when CRITICAL is used;
  
      Args:
          level (str): Level name (``debug``, ``info``, etc..).
  
      Keyword Arguments:
          printout (bool): If False, logs will never be outputed.
  
      Returns:
          logging.Logger: Application logger.
      """
      root_logger = logging.getLogger("boussole")
      root_logger.setLevel(level)
  
      # Redirect outputs to the void space, mostly for usage within unittests
      if not printout:
          from StringIO import StringIO
          dummystream = StringIO()
          handler = logging.StreamHandler(dummystream)
      # Standard output with colored messages
      else:
          handler = logging.StreamHandler()
          handler.setFormatter(
              colorlog.ColoredFormatter(
                  '%(asctime)s - %(log_color)s%(message)s',
                  datefmt="%H:%M:%S"
              )
          )
  
      root_logger.addHandler(handler)
  
      return root_logger
  
new_contents: """
  Logging
  =======
  """
  import logging
  
  import colorlog
  
  
  def init_logger(level, printout=True):
      """
      Initialize app logger to configure its level/handler/formatter/etc..
  
      Todo:
          * A mean to raise click.Abort or sys.exit when CRITICAL is used;
  
      Args:
          level (str): Level name (``debug``, ``info``, etc..).
  
      Keyword Arguments:
          printout (bool): If False, logs will never be outputed.
  
      Returns:
          logging.Logger: Application logger.
      """
      root_logger = logging.getLogger("boussole")
      root_logger.setLevel(level)
  
      # Redirect outputs to the void space, mostly for usage within unittests
      if not printout:
          from io import StringIO
          dummystream = StringIO()
          handler = logging.StreamHandler(dummystream)
      # Standard output with colored messages
      else:
          handler = logging.StreamHandler()
          handler.setFormatter(
              colorlog.ColoredFormatter(
                  '%(asctime)s - %(log_color)s%(message)s',
                  datefmt="%H:%M:%S"
              )
          )
  
      root_logger.addHandler(handler)
  
      return root_logger
  
subject: Use StringIO object from 'io' module instead of deprecated 'StringIO' module