scrapy抓取不到資料 - Cupoy

import scrapy
import re
import bs4
from urllib.parse import urljoin
from pprint import pprint
import requests

class pttcraweler(scrapy.Spider):
    name='ptt'
    start_url=['https://www.ptt.cc/bbs/Boy-Girl/M.1578074538.A.7FB.html']
    allowed_domains = ['www.ptt.cc']
    cookies = {'over18': '1'}
    def start_requests(self):
        for url in self.start_urls:
            yield scrapy.Request(url=url, callback=self.parse, cookies=self.cookies)
    def parse(self, response):
        res = bs4.BeautifulSoup(response.body)
        for re in res.find_all('div',class_='article-metaline'):
            print(re.find('span' , class_='article-meta-tag').text)
            print(re.find('span',class_='article-meta-value').text)
        for ap in res.find_all('div', class_='push'):
            try:
                print(ap.find('span', class_='hl push-tag').text, ap.find('span', class_='f3 hl push-userid').text,
                      ap.find('span', class_='f3 push-content').text, ap.find('span', class_='push-ipdatetime').text)
            except:
                print(ap.find('span', class_='f1 hl push-tag').text, ap.find('span', class_='f3 hl push-userid').text,
                      ap.find('span', class_='f3 push-content').text, ap.find('span', class_='push-ipdatetime').text)