scrapy yield 出错 Internal StopIteration

Question

代码：
················`
item['focus_nums'] = focus_nums
item['answer_nums'] = answer_nums
item['view_nums'] = view_nums
item['tag'] = response.meta['tag'].encode('utf-8').decode()
pdb.set_trace()
yield item`

···············`
pdb.set_trace()
yield scrapy.Request(url=url, callback=self.Q_parse, meta={'tag': tag})`

出错：

在yield前一行设置pdb，当执行yield时
抛出Internal StopIteration异常，且此异常我用try-exception无法捕获
代码从scrapy 的parse中直接跳进Twitter函数中
求解

Answer 1

代码多贴点，还有你的item定义