新人求指点：为什么爬不到图片，那里出问题了

import os
import urllib.request
import requests
from fake_useragent import UserAgent
from bs4 import BeautifulSoup
ua = UserAgent()

download_path = './电影总览'
if not os.path.exists(download_path):
    #创建文件夹
    os.makedirs(download_path)
    
    
def download_picture(url):
    headers = {'User-Agent' : 
    'Mozilla/5.0 (Windows NT 10.0; Win64 x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.108 Safari/537.36'}
    
    
    r = requests.get(url, headers = headers)
    soup = BeautifulSoup(r.text, 'lxml')
    content = soup.find('div', class_ = 'article')
    images = content.find_all('img')
   
    picture_http_list = [image['src'] for image in images]
    picture_name_list = [image['alt'] for image in images]
    
    for picture_name, picture_http in zip (picture_name_list, picture_http_list):
        html = requests.get(picture_http)
        with open(f'{download_path}/{picture_name}.jpg','wb') as f:
            f.write(html.content)
            
def main():
    start_urls = ["https://movie.douban.com/tag/#/"]

    for url in start_urls:
        download_picture(url)
            
main()            
    

使用request.urlretrieve(picture_http, '{download_path}/{picture_name}.jpg')试试

不行，还是什么都没有

我网址换了就有效了，为什么