util.py 文件源码

def __getattr__(self, attr):

        # Fix for inspect.isclass under Python 2.6
        # (see http://bugs.python.org/issue1225107).
        # Without this fix tests may take extra 1.5GB RAM
        # because all corpora gets loaded during test collection.
        if attr == '__bases__':
            raise AttributeError("LazyCorpusLoader object has no attribute '__bases__'")

        self.__load()
        # This looks circular, but its not, since __load() changes our
        # __class__ to something new:
        return getattr(self, attr)