我已经使用pip安装了scrapy,并尝试了scrapy文档中的示例。
我收到错误cannot import name xmlrpc_client
在研究了stachoverflow问题here之后
我已经使用修复它
sudo pip uninstall scrapy
sudo pip install scrapy==0.24.2
但现在它显示了
exceptions.AttributeError: 'HtmlResponse' object has no attribute 'urljoin'
这是我的代码:
import scrapy
class StackOverflowSpider(scrapy.Spider):
name = 'stackoverflow'
start_urls = ['https://stackoverflow.com/questions?sort=votes']
def parse(self, response):
for href in response.css('.question-summary h3 a::attr(href)'):
full_url = response.urljoin(href.extract())
yield scrapy.Request(full_url, callback=self.parse_question)
def parse_question(self, response):
yield {
'title': response.css('h1 a::text').extract()[0],
'votes': response.css('.question .vote-count-post::text').extract()[0],
'body': response.css('.question .post-text').extract()[0],
'tags': response.css('.question .post-tag::text').extract(),
'link': response.url,
}
谁能帮我这个忙!
最佳答案
在Scrapy> = 0.24.2中,HtmlResponse
类尚无urljoin()
方法。直接使用 urlparse.urljoin()
:
full_url = urlparse.urljoin(response.url, href.extract())
不要忘记导入它:
import urlparse
请注意,在Scrapy 1.0中添加了
urljoin()
别名/helper,这是相关的问题:这是what it actually is:
from six.moves.urllib.parse import urljoin
def urljoin(self, url):
"""Join this Response's url with a possible relative url to form an
absolute interpretation of the latter."""
return urljoin(self.url, url)
关于python - 严重错误: exceptions. AttributeError: 'HtmlResponse'对象没有属性 'urljoin',我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/31145690/