[Tutor] Python Scraping problem help

[CPECC张涛]

Dear sir :
Could you please help solve the below problem that can run but no result ,the program is runing,but can noly retrieve one picture ,Could you help tell me how to solve this problem .
import requests
from bs4 import BeautifulSoup
import urllib
import time,os


headers={'User-Agent': 'Mozilla/5.0 (Windows NT 6.1;'
                       'Win64; x64) AppleWebKit/537.36 (KHTML, like'
                       'Gecko) Chrome/69.0.3497.100'
                       'Safari/537.36','Referer': "https://www.douban.com/group/topic/206388806/?type=rec"}
url=r'https://www.douban.com/group/topic/206388806/?type=rec'
wbdata=requests.get(url,headers=headers)
# print(response)
soup=BeautifulSoup(wbdata.content,'lxml')
imgs=soup.select('div.image-wrapper>img')
# print(imgs)
number=1
for item in imgs:
    img=item.get('src')
    print(img)
    path=r'F:\Python crawler'

    if not os.path.isdir(path):
        os.makedirs(path)
    paths=path+str(number)+'.jpg'
    time.sleep(1)
    try:
        urllib.request.urlretrieve(img,paths)
        number+=1
        # print('%sDownloaded'%img)
    except:
        continue