code: def check_directory(path, human_readable_name):
      
      if not os.path.exists(path):
          LOGGER.error("%s directory does not exist: %s",
                       human_readable_name,
                       path)
          return False
  
      if not os.path.isdir(path):
          LOGGER.error("%s directory is not a directory: %s",
                       human_readable_name,
                       path)
          return False
  
      errors = True
      if not os.access(path, os.R_OK):
          LOGGER.error("%s directory is not readable: %s",
                       human_readable_name,
                       path)
          errors = False
      if not os.access(path, os.W_OK):
          LOGGER.error("%s directory is not writable: %s",
                       human_readable_name,
                       path)
          errors = False
      return errors
docs: Verify that the directory exists and is readable and writable.
  
      Args:
          path (str): a directory which should exist and be writable
          human_readable_name (str): a human readable string for the directory
              which is used in logging statements
  
      Returns:
          bool: False if an error exists, True otherwise.