code: def _new_gnu_trans(self, localedir, use_null_fallback=True):
          
          use_null_fallback = False
          return gettext_module.translation(
              domain=self.domain,
              localedir=localedir,
              languages=[self.language],
              codeset='utf-8',
              fallback=use_null_fallback)
docs: Return a mergeable gettext.GNUTranslations instance.
  
          A convenience wrapper. By default gettext uses 'fallback=False'.
          Using param `use_null_fallback` to avoid confusion with any other
          references to 'fallback'.