请教各位大侠，这段爬猫眼电影的代码有什么问题？

-- coding: utf-8 --

from scrapy.spiders import Spider
from scrapy import Request

class MaoyanSpider(Spider):
name = ‘maoyan’
allowed_domains = [‘maoyan.com’]
maoyan_headers={“User-Agent”:“Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.36”}

def start_requests(self):
    url="https://maoyan.com/board/4?offset=0"
    yield Request(url,headers=self.maoyan_headers)
def parse(self, response):
    selector = response.text()
    print(selector)
    for item in selector:
        name=item.xpath("div[1]/p[1]/a/text()").extract()[0]
        print(name)
        star=item.xpath("div[1]/p[2]/text()").extract()[0]
        print(star)
        releasetime = item.xpath("div[1]/p[3]/text()").extract()[0]
        print(releasetime)
        score=item.xpath("div[2]/p/i[1]/text()").extract()[0]\
              +item.xpath("div[2]/p/i[2]/text()").extract()[0]
        hot_dict={"name":name,"star":star,"releasetime":releasetime,"score":score}
        yield hot_dict