client.py 文件源码

def _get_client_class_and_version(version):
    if not isinstance(version, api_versions.APIVersion):
        version = api_versions.get_api_version(version)
    else:
        api_versions.check_major_version(version)
    if version.is_latest():
        raise exceptions.UnsupportedVersion(
            _('The version should be explicit, not latest.'))
    return version, importutils.import_class(
        'zunclient.v%s.client.Client' % version.ver_major)