我正在用 python 創建一個爬蟲來列出網站中的所有鏈接，但出現錯誤，我看不到導致錯誤的原因：Traceback (most recent call last):  File "vul_scanner.py", line 8, in <module>    vuln_scanner.crawl(target_url)  File "C:\Users\Lenovo x240\Documents\website\website\spiders\scanner.py", line 18, in crawl    href_links= self.extract_links_from(url)  File "C:\Users\Lenovo x240\Documents\website\website\spiders\scanner.py", line 15, in extract_links_from    return re.findall('(?:href=")(.*?)"', response.content)  File "C:\Users\Lenovo x240\AppData\Local\Programs\Python\Python38\lib\re.py", line 241, in findall    return _compile(pattern, flags).findall(string)TypeError: cannot use a string pattern on a bytes-like object我的代碼是：在scanner.py文件中：# To ignore numpy errors:#     pylint: disable=E1101import urllibimport requestsimport refrom urllib.parse import urljoinclass Scanner:    def __init__(self, url):        self.target_url = url        self.target_links = []    def extract_links_from(self, url):        response = requests.get(url)        return re.findall('(?:href=")(.*?)"', response.content)    def crawl(self, url):        href_links= self.extract_links_from(url)        for link in href_links:            link = urljoin(url, link)               if "#" in link:                link = link.split("#")[0]            if self.target_url in link and link not in self.target_links:                self.target_links.append(link)                print(link)                self.crawl(link)     在 vul_scanner.py 文件中：import scanner# To ignore numpy errors:#     pylint: disable=E1101target_url = "https://www.amazon.com"vuln_scanner = scanner.Scanner(target_url)vuln_scanner.crawl(target_url)我運行的命令是：python vul_scanner.py