def _distro_release_info(self):
        if self.distro_release_file:
            # If it was specified, we use it and parse what we can, even if
            # its file name or content does not match the expected pattern.
            distro_info = self._parse_distro_release_file(
                self.distro_release_file)
            basename = os.path.basename(self.distro_release_file)
            # The file name pattern for user-specified distro release files
            # is somewhat more tolerant (compared to when searching for the
            # file), because we want to use what was specified as best as
            # possible.
            match = _DISTRO_RELEASE_BASENAME_PATTERN.match(basename)
            if match:
                distro_info['id'] = match.group(1)
            return distro_info
        else:
            basenames = os.listdir(_UNIXCONFDIR)
            # We sort for repeatability in cases where there are multiple
            # distro specific files; e.g. CentOS, Oracle, Enterprise all
            # containing `redhat-release` on top of their own.
            basenames.sort()
            for basename in basenames:
                if basename in _DISTRO_RELEASE_IGNORE_BASENAMES:
                    continue
                match = _DISTRO_RELEASE_BASENAME_PATTERN.match(basename)
                if match:
                    filepath = os.path.join(_UNIXCONFDIR, basename)
                    distro_info = self._parse_distro_release_file(filepath)
                    if 'name' in distro_info:
                        # The name is always present if the pattern matches
                        self.distro_release_file = filepath
                        distro_info['id'] = match.group(1)
                        return distro_info
            return {}
Get the information items from the specified distro release file.
dataset/ETHPy150Open nir0s/distro/distro.py/LinuxDistribution._distro_release_info