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我刮下的列表页网站的详细信息页面，在每个细节页面一定的差异分析不同的详细信息页面。Scrapy从上市
1日详细页面：
<div class="td-post-content">
<p style="text-align: justify;">
<strong>[ Karda Natam ]</strong>
<br>
<strong>ITANAGAR, May 6:</strong> Nacho, Taksing, Siyum and ...
<br> “Offices are without ...
</p>
</div>
第二详细页面：
<div class="td-post-content">
<p style="text-align: justify;">
<strong>Guwahati, May 6 (PTI)</strong> Sarbananda Sonowal today ...
<br> “Books are a potent tool to create ...
</p>
</div>
第三详细页面：
<div class="td-post-content">
<h3 style="text-align: justify;"><strong>Flights Of Fantasy</strong></h3>
<p style="text-align: justify;">
<strong>[ M Panging ]</strong>
<br> This state of denial ...
</p>
</div>
我试图从细节解析作者和发布日期页码：
class ArunachaltimesSpider(scrapy.Spider):
...
...
def parse(self, response):
urls = response.css("div.td-ss-main-content > div.td_module_16 > div.item-details > h3.entry-title > a::attr(href)").extract()
for url in urls:
yield scrapy.Request(url=url, callback=self.parse_detail)
next = response.xpath("// ...')]/@href").extract_first()
if next:
yield scrapy.Request(url=next, callback=self.parse)
def parse_detail(self, response):
strong_elements = response.css("div.td-ss-main-content").css("div.td-post-content").css("p > strong::text").extract()
for strong in strong_elements:
if ', ' in strong:
news_date = strong.split(', ')[1].replace(":", "")
elif '[ ' and ' ]' in strong:
author = strong
else:
news_date = None
author = None
yield {
'author': author,
'news_date': news_date
}
但我收到此错误：
UnboundLocalError: local variable 'author' referenced before assignment
我在做什么错在这里？您能否请分别从每个页面获取作者和新闻日期。谢谢。