code: def get_raw_default_config_and_read_file_list():
      
      global _CONFIG, _READ_DEFAULT_FILES
      if _CONFIG is not None:
          return _CONFIG, _READ_DEFAULT_FILES
      with _CONFIG_LOCK:
          if _CONFIG is not None:
              return _CONFIG, _READ_DEFAULT_FILES
          try:
              # noinspection PyCompatibility
              from ConfigParser import SafeConfigParser
          except ImportError:
              # noinspection PyCompatibility,PyUnresolvedReferences
              from configparser import ConfigParser as SafeConfigParser  # pylint: disable=F0401
          cfg = SafeConfigParser()
          read_files = cfg.read(get_default_config_filename())
          _CONFIG, _READ_DEFAULT_FILES = cfg, read_files
          return _CONFIG, _READ_DEFAULT_FILES
docs: Returns a ConfigParser object and a list of filenames that were parsed to initialize it