scrapy yield Request

import scrapy

from myproject.items import MyItem

class MySpider(scrapy.Spider):

name = ’example.com’ allowed_domains = [’example.com’] start_urls = [

        ’http://www.example.com/1.html’,

        ’http://www.example.com/2.html’,

        ’http://www.example.com/3.html’,

]


def parse(self, response):

　　for h3 in response.xpath(’//h3’).extract():

　　　　yield MyItem(title=h3)


　　for url in response.xpath(’//a/@href’).extract(): 
　　　　yield scrapy.Request(url, callback=self.parse)