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python - Python BeautifulSoup 获取图像 src 的 KeyError

问题描述

我正在尝试从此页面获取产品图片网址。我正在获取图像 src，但也收到此错误KeyError: 'data-lazy-src'

这是我的代码：

image = soup.select('img.attachment-shop_single')

for i in image:
    img = i['data-lazy-src']
    print(img)

python外壳结果：

https://thedankvape.com/wp-content/uploads/2020/04/ACE-OF-SPADES.jpeg
Traceback (most recent call last):
  File "<pyshell#56>", line 2, in <module>
    img = i['data-lazy-src']
  File "C:\Users\Mick\AppData\Local\Programs\Python\Python39\lib\site-packages\bs4\element.py", line 1406, in __getitem__
    return self.attrs[key]
KeyError: 'data-lazy-src'

我正在获取图像 src，但为什么会出现关键错误？这是 HTML 元素

>>>soup.select('img.attachment-shop_single')
[<img alt="ace of spades dank vapes" class="attachment-shop_single size-shop_single wp-post-image" data-lazy-src="https://thedankvape.com/wp-content/uploads/2020/04/ACE-OF-SPADES.jpeg" height="800" src="data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%20600%20800'%3E%3C/svg%3E" title="ace of spades dank vapes" width="600"/>, <img alt="ace of spades dank vapes" class="attachment-shop_single size-shop_single wp-post-image" height="800" src="https://thedankvape.com/wp-content/uploads/2020/04/ACE-OF-SPADES.jpeg" title="ace of spades dank vapes" width="600"/>]

如何获取最后一个 src 元素图片链接src="https://thedankvape.com/wp-content/uploads/2020/04/ACE-OF-SPADES.jpeg？

标签： pythonpython-3.xpython-2.7beautifulsouppython-requests

解决方案

如评论中所述，有两个<img>class "attachment-shop_single"。最安全的方法是只选择一个具有data-lazy-src属性的：

import requests
from bs4 import BeautifulSoup


url = "https://thedankvape.com/product/ace-of-spades-dank-vapes/"
soup = BeautifulSoup(requests.get(url).content, "html.parser")

img = soup.select_one("[data-lazy-src]")
print(img["data-lazy-src"])

印刷：

https://thedankvape.com/wp-content/uploads/2020/04/VAPE.png

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