Scrapy图片下载如何使用自定义文件名

这就是我在Scrapy
0.10中解决问题的方式。检查FSImagesStoreChangeableDirectory的persist_image方法。下载图像的文件名是密钥

class FSImagesStoreChangeableDirectory(FSImagesStore):    def persist_image(self, key, image, buf, info,append_path):        absolute_path = self._get_filesystem_path(append_path+'/'+key)        self._mkdir(os.path.dirname(absolute_path), info)        image.save(absolute_path)class ProjectPipeline(ImagesPipeline):    def __init__(self):        super(ImagesPipeline, self).__init__()        store_uri = settings.IMAGES_STORE        if not store_uri: raise NotConfigured        self.store = FSImagesStoreChangeableDirectory(store_uri)