python爬取百度贴吧图片下载

import requests
from lxml import etree

index_url = "https://tieba.baidu.com/p/7209614779"

response = requests.get(index_url).text

selector = etree.HTML(response)

image_urls = selector.xpath('//img[@class="BDE_Image"]/@src')

offset = 0

for image_url in image_urls:

    image_content = requests.get(image_url).content

    with open('{}.jpg'.format(offset),'wb') as f:

        f.write(image_content)

    offset = offset + 1