pyspider 示例二 升级完整版绕过懒加载，直接读取图片

pyspider 示例二 升级完整版绕过懒加载，直接读取图片，见【升级写法处】

#!/usr/bin/env python
# -*- encoding: utf-8 -*-
# Created on 2019-04-08 14:24:34
# Project: qunaer

from pyspider.libs.base_handler import *

class Handler(BaseHandler):
    crawl_config = {
    }

    @every(minutes=24 * 60)
    def on_start(self):
        self.crawl('https://travel.qunar.com/travelbook/list.htm', callback=self.index_page,validate_cert=False)

    @config(age=10 * 24 * 60 * 60)
    def index_page(self, response):
        for each in response.doc('li > .tit>a').items():
            self.crawl(each.attr.href, callback=self.detail_page,validate_cert=False,fetch_type='js',js_viewport_height='')
        next1=response.doc('.next').attr.href
        self.crawl(next1,callback=self.index_page,validate_cert=False)

    @config(priority=2)
    def detail_page(self, response):
        imgs=response.doc('.js_memo_node').find('img')#获取id下的所有（包括多层嵌套的）img标签
        img_list=''                                  #必须事先声明，否则return,img_list时会报引用未事先声明的变量
        for img in imgs.items():
            img_list+=img.attr('data-original')+',' #【升级写法】，绕过懒加载直接读取图片真正地址
                                                    #htm源码<img  data-original="https://tr-osdcp.qunarzz.com/tr-osd-tr-space/img/ee.jpg" src="layz-load">
        return {
            "url": response.url,
            "title": response.doc('title').text(),
            "date":response.doc('li.f_item.when > p > span.data').text(),
            "day":response.doc('li.f_item.howlong > p > span.data').text(),
            "text":response.doc('#b_panel_schedule').text(),
            "img":img_list

        }
#ele-3076663-2 > div.bottom > div.e_img_schedule > div > dl:nth-child(2) > dt > img