code: def log_to_file(status=True, filename=DEFAULT_LOG_FILE, level=None):
      
  
      if status:
          if level is not None:
              LOGGER.setLevel(level)
  
          try:
              os.mkdir(os.path.dirname(filename))
          except OSError:
              pass
  
          file_handler = logging.FileHandler(filename)
          # create formatter
          fomat_str = '%(levelname)s-%(name)s: %(message)s'
          formatter = logging.Formatter(fomat_str)
          # add formatter to handler
          file_handler.setFormatter(formatter)
          LOGGER.addHandler(file_handler)
  
          LOGGER.info("pangaea %s", version())
  
      else:
          for handle in LOGGER.handlers:
              if type(handle).__name__ == 'FileHandler':
                  LOGGER.removeHandler(handle)
docs: Log events to a file.
  
      Args:
          status (bool, Optional, Default=True)
              whether logging to file should be turned on(True) or off(False)
          filename (string, Optional, Default=None) :
              path of file to log to
          level (string, Optional, Default=None) :
              level of logging; whichever level is chosen all higher levels
              will be logged.
              See: https://docs.python.org/2/library/logging.html#levels