标签： python-2.7
我的代码为我提供了网络抓取的输出，但在请求 url：h
我尝试将start_urls = ['http://books.toscrape.com/']更改为self.start_urls = ['http://books.toscrape.com/']，但仍显示相同的错误
start_urls = ['http://books.toscrape.com/']
self.start_urls = ['http://books.toscrape.com/']