SplashRequest-无法获取数据属性

Question

我正在努力找出收到错误的原因：

  

AttributeError：“ HtmlResponse”对象没有属性“ data”

来自文档：

SplashJsonResponse provide extra features:

response.data attribute contains response data decoded from JSON; you can access it like response.data['html'].

这是我的示例代码：

class HeadphonesSpider(scrapy.Spider):

    name = "headphones"
    handle_httpstatus_list = [404]

    def start_requests(self):
        splash_args = {
            'html': 1,
            'png': 1,
            'width': 600,
            'render_all': 1,
        }
        yield SplashRequest('https://domain.tld', self.parse_result, endpoint='render.json', args=splash_args)

    def parse_result(self, response): 
        title = response.css('title').extract_first()
        print(title)
        png_bytes = base64.b64decode(response.data['png'])
        #... rest of the processing

飞溅渲染服务器正在http://0.0.0.0:8050/上运行，当我从控制台发出curl命令时，我可以从中接收数据。