Python：如何检查html单选框？

Question

我不熟悉Python和

我想搜索是否选中了广播框。

这是我的HTML代码。

<input type="radio" name="radio1" value="1" checked>
<input type="radio" name="radio2" value="2"> 
<input type="radio" name="radio3" value="3" checked>

我尝试使用此代码但不起作用

import requests
from requests.auth import HTTPBasicAuth

from bs4 import BeautifulSoup

res = requests.get('url', auth=HTTPBasicAuth('User', 'Password'))

soup = BeautifulSoup(res.text,'html.parser')
print soup.find(attrs={'name':'radio1'}).attrs['checked']
print soup.find(attrs={'name':'radio2'}).attrs['checked']
print soup.find(attrs={'name':'radio3'}).attrs['checked']

Answer 1

尝试has_attr：

from bs4 import BeautifulSoup

div_test = """
<input type="radio" name="radio1" value="1" checked/>
<input type="radio" name="radio2" value="2"/>
<input type="radio" name="radio3" value="3" checked/>
"""

soup = BeautifulSoup(div_test,'html.parser')
print soup.find('input',attrs={'name':'radio1'}).has_attr('checked')
print soup.find('input',attrs={'name':'radio2'}).has_attr('checked')
print soup.find('input',attrs={'name':'radio3'}).has_attr('checked')

输出：

True
False
True