utils.py 文件源码

def i18n_wrapper(locale: Optional[str] = None) -> Any:
    """
    Internationalize using gettext.

    Returns gettext for provided locale
    or default (zentropi.defaults.LOCALE).

    Example:
        >>> from zentropi.utils import i18n_wrapper
        >>> _ = i18n_wrapper()
        >>> print(_('Hello, world.'))
        Hello, world.
    """
    from zentropi import BASE_PATH
    from zentropi.defaults import LOCALE

    locale = locale or lib_locale.getlocale()[0] or LOCALE
    locale_dir = os.path.join(BASE_PATH, 'locale')
    locale_file = os.path.join(locale_dir, '{}.mo'.format(locale))
    try:
        translation = gettext.GNUTranslations(open(locale_file, 'rb'))
    except IOError:
        warnings.warn('Translation file for {} not found at: {}. Using default.'
                      ''.format(locale, locale_file))
        translation = gettext.NullTranslations()  # type: ignore
    translation.install()
    return translation.gettext