python 下载网站图片到本地

#参考西瓜视频教程
import requests
from lxml import html
source=requests.get("https://www.huya.com/g/2168").text
#print(source)
etree = html.etree
html = etree.HTML(source)
pic_list=html.xpath("//img[@class='pic']")
#print(pic_list)
i=0
for pic in pic_list:
    pic_src=pic.xpath("./@data-original")[0]
    big_pic_src=pic_src.split('?')[0]
    #print(big_pic_src)
    name = pic.xpath("./@alt")[0]
    image = requests.get(big_pic_src)
    with open("./meiNv/%s.jpg"%name,"wb") as file:
        file.write(image.content)
    print("<%s>保存成功！"%name)
    i=i+1
    if i>10 :
        break

用下面这一行安装lxml

c:/>pip install lxml==4.2.1

因为我的python版本是3.6，所以不能用下面这一行

from lxml import etree 

而改为这两行

from lxml import html

etree = html.etree

图片太多，只下载10个然后跳出。