按理说直接:pip install scrapy 就可以成功,但是出现了错误"libxml/xpath.h: No such file or directory" "error:failed with exit status 2" (百度上有很多解决方案而且大多相同,但是都没解决我的问题) 最后还是上官网找解决方法:https://doc.scrapy.org/en/latest/intro/install.html Scrapy is written in pur
import os from scrapy.commands import ScrapyCommand from scrapy.utils.conf import arglist_to_dict from scrapy.utils.python import without_none_values from scrapy.exceptions import UsageError class Command(ScrapyCommand): requires_project = True def s
官方文档:https://doc.scrapy.org/en/latest/topics/selectors.html Using selectors Constructing selectors Response objects expose a Selector instance on .selector attribute: >>> response.selector.xpath('//span/text()').get() 'good' Querying responses us