我正在尝试抓取网站并将结果保存并格式化为 CSV 文件。我可以保存文件,但是有关于输出和格式的三个问题:
所有结果都位于一个单元格中,而不是多行中。列出项目以使它们出现在列表中时,是否有我忘记使用的命令?
如何删除
['u...
每个结果之前的那个?(我搜索并看到了如何这样做print
,但不是return
)有没有办法在某些项目结果中添加文本?(例如,我可以在每个交易链接结果的开头添加“http://groupon.com”吗?)
from scrapy.spider import BaseSpider
from scrapy.selector import HtmlXPathSelector
from deals.items import DealsItem
class DealsSpider(BaseSpider):
name = "groupon.com"
allowed_domains = ["groupon.com"]
start_urls = [
"http://www.groupon.com/chicago/all",
"http://www.groupon.com/new-york/all"
]
def parse(self, response):
hxs = HtmlXPathSelector(response)
sites = hxs.select('//div[@class="page_content clearfix"]')
items = []
for site in sites:
item = DealsItem()
item['deal1'] = site.select('//div[@class="c16_grid_8"]/a/@title').extract()
item['deal1link'] = site.select('//div[@class="c16_grid_8"]/a/@href').extract()
item['img1'] = site.select('//div[@class="c16_grid_8"]/a/img/@src').extract()
item['deal2'] = site.select('//div[@class="c16_grid_8 last"]/a/@title').extract()
item['deal2link'] = site.select('//div[@class="c16_grid_8 last"]/a/@href').extract()
item['img2'] = site.select('//div[@class="c16_grid_8 last"]/a/img/@src').extract()
items.append(item)
return items