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Scrapy中xpath用到中文报错

作者:互联网

问题描述

links = sel.xpath('//i[contains(@title,"置顶")]/following-sibling::a/@href').extract()

报错:ValueError: All strings must be XML compatible: Unicode or ASCII, no NULL bytes or control characters

 

 

解决方法

方法一:将整个xpath语句转成Unicode

links = sel.xpath(u'//i[contains(@title,"置顶")]/following-sibling::a/@href').extract()

方法二:xpath语句用已转成Unicode的title变量

title = u"置顶"
links = sel.xpath('//i[contains(@title,"%s")]/following-sibling::a/@href' %(title)).extract()

方法三:直接用xpath中变量语法($符号加变量名)$title, 传参title即可

 
links = sel.xpath('//i[contains(@title,$title)]/following-sibling::a/@href', title="置顶").extract()

标签:xpath,links,title,sibling,Scrapy,href,报错,置顶
来源: https://www.cnblogs.com/jessicor/p/12056144.html