我怎样才能在外壳程序中获得结果，但在出口中却不能呢？

Question

我想知道为什么在刮the的外壳中我确实能得到我的结果，但是当我尝试在脚本中使用它的时候。它失败并显示空字段。你会怎么称呼以及如何修复？

我的输出的屏幕截图：

外壳：

>>> response.css("#content2 > strong:nth-child(2) > address:nth-child(2) > div:nth-child(1) > a:nth-child(9) > span:nth-child(1)::text").extract_first()
u'GU17 9AB'

我的代码段：

import scrapy
import re
from scrapy.linkextractors import LinkExtractor


class QuotesSpider(scrapy.Spider):

  name = 'CYRecursive'
  start_urls = [
      'https://www.companiesintheuk.co.uk/Company/Find?q=a']

  def parse(self, response):

    for company_url in response.xpath('//div[@class="search_result_title"]/a/@href').extract():
      yield scrapy.Request(
          url=response.urljoin(company_url),
          callback=self.parse_details,
      )

  def parse_details(self, response):

    # Looping throught the searchResult block and yielding it

    for i in response.css('div.col-md-6'):
        if not i.css('#content2 > strong:nth-child(2) > strong:nth-child(1)'):
            continue
        yield {
            'company_name': i.css('#content2 > strong:nth-child(2) > strong:nth-child(1) > div:nth-child(1)::text').get(),
            'address': i.css("#content2 > strong:nth-child(2) > address:nth-child(2) > div:nth-child(1) > span:nth-child(1)::text").extract_first(),
            'location': i.css("#content2 > strong:nth-child(2) > address:nth-child(2) > div:nth-child(1) > span:nth-child(3)::text").extract_first(),
            'postal_code': i.css("#content2 > strong:nth-child(2) > address:nth-child(2) > div:nth-child(1) > a:nth-child(9) > span:nth-child(1)::text").extract_first(),
        }

给我带来麻烦的部分是：

'postal_code': i.css("#content2 > strong:nth-child(2) > address:nth-child(2) > div:nth-child(1) > a:nth-child(9) > span:nth-child(1)::text").extract_first(),

谢谢！

Answer 1

不确定这是否是您想要的东西。请尝试以下操作：

  def parse_details(self, response):
    for i in response.css('#content2'):
        yield {
            'company_name': i.css('[itemprop="name"]::text').get(),
            'address': i.css('[itemprop="streetAddress"]::text').extract_first(),
            'location': i.css("[itemprop='addressLocality']::text").extract_first(),
            'postal_code': i.css("[itemprop='postalCode']::text").extract_first(),
        }