Python qq机器人

代码如下（欢迎各位指正）：

import requests
import re

#获取网页源代码
def get_code(url):
    headers = {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:73.0)"
                             " Gecko/20100101 Firefox/73.0"}
    return requests.get(url, headers=headers).text


#从原网页中提取songid
song_url=input('请输入QQ音乐网页版网址（https://y.qq.com/n/yqq/song/x.html形式）：')
song_doc = get_code(song_url)
id = re.findall('"songid":(.*?),"',song_doc)[0]
name = re.findall('songname":"(.*?)"',song_doc)[0]
tgt = int(input('请输入需要爬取的页数：'))
#从js文件中提取评论
list = []      #防止评论重复
num = 0
for number in range(1,tgt):
    comment_url = "https://c.y.qq.com/base/fcgi-bin/fcg_global_comment_h5.fcg?g_tk" \
                  "=5381&loginUin=0&hostUin=0&format=jsonp&inCharset=utf8&outCharset" \
                  "=GB2312&notice=0&platform=yqq&needNewCode=0&cid=205360772&reqtype" \
                  "=2&biztype=1&topid=%s&cmd=6&needmusiccrit=0&pagenum=%d&pagesize=" \
                  "15&ct=24&cv=10101010"%(id,number)
    comment_doc = get_code(comment_url)
    targets = re.findall('"rootcommentcontent":"(.*?)"',comment_doc)
    for each in targets:
        each = re.sub(r"([em](.*?)[/em])|(\\n)|(\\)|[|]",'',each)
        if each in list:
            pass
        else:
            file = open('热门评论\\'+name+'.txt', 'a')
            try:
                num += 1
                num_st = str(num)
                list.append(each)
                each = re.sub('\[|\]', '', each)
                file.write('编号'+num_st+' '+each+'\n')
                print('第'+num_st+'个评论已爬取！')
                file.close()
            except Exception as err:
                print(err)
    print('爬取成功！请查看当先文件夹下歌名文本!')

有时候会出现这样的错误——

'gbk' codec can't encode character '\xb4' in position 23:
 illegal multibyte sequence

看来应该是编码的问题，但未找到解决方案…

=========================================================

更新：

经过指点与修改（2处）——

第一处：

file = open('热门评论\\'+name+'.txt', 'a')

改后：

file = open('热门评论\\'+name+'.txt', 'a'，encoding="utf-8")

另一处修改：

return requests.get(url, headers=headers).text

改后：

return requests.get(url, headers=headers).content.decode("utf-8")

尝试了几次之后，并没有出现报错！初步鉴定合格…