How to get last OPTION from SELECT list using XPath - Scrapy

问题

I am using this selector but it is giving error

//*[@id="quantity"]/option/[last()-1]

How do I select last OPTION?

I am using Scrapy Framework.

回答1:

You have an extra / before the [ making the XPath expression invalid. Remove it:

//*[@id="quantity"]/option[last()-1]

Note that you can also solve it using Python/Scrapy:

response.xpath('//*[@id="quantity"]/option')[-1].extract()

Or, in a CSS selector form:

response.css('#quantity option:last-child').extract_first()
response.css('#quantity option')[-1].extract()

来源：https://stackoverflow.com/questions/39939553/how-to-get-last-option-from-select-list-using-xpath-scrapy