用xpath匹配的全内容为list集合无法进行解码

工具
python3.9
pycharm 2020.4 community

实例化的html数据进行解码问题，请教一下应该如何对匹配的内容进行解码并且保存

import requests
from lxml import etree
import time
import re

class Movie(object):
    def __init__(self,times):
        self.times = int(times)
        self.headers = headers = {
            'User-Agent': (
                'Mozilla/5.0 (Macintosh; Intel Mac OS X 11_1_0) AppleWebKit/'
                '537.36 (KHTML, like Gecko) Chrome/88.0.4324.96 Safari/537.36')
        }

    def get_html(self):
        for i in range(self.times):
            url = ('https://movie.douban.com/subject/30171424/reviews?start={}'
                   .format(i*20))
            print('第{}页'
                  .format(i+1))
            print(url)
            request = requests.get(url=url,headers=self.headers).text
            html_element = etree.HTML(request)
            for x in html_element:
                tree = etree.tostring(x)
                get = tree.xpath('//div/header/a/text()')
                print(get)

movie = Movie(1)
movie.get_html()

报错内容

/usr/local/bin/python3.9 /Users/scrooge/PycharmProjects/pythonProject/拆弹专家评分爬虫.py
第1页
https://movie.douban.com/subject/30171424/reviews?start=0
Traceback (most recent call last):
  File "/Users/scrooge/PycharmProjects/pythonProject/拆弹专家评分爬虫.py", line 30, in <module>
    movie.get_html()
  File "/Users/scrooge/PycharmProjects/pythonProject/拆弹专家评分爬虫.py", line 26, in get_html
    get = tree.xpath('//div/header/a/text()')
AttributeError: 'bytes' object has no attribute 'xpath'