如何从xml错误消息python中提取文本

Question

I want to determine if the return from a beautifulsoup request looks like this.

Out[32]: 
<?xml version="1.0" encoding="utf-8"?>
<boardgames termsofuse="https://boardgamegeek.com/xmlapi/termsofuse">
<boardgame>
<error message="Item not found"/>
</boardgame>
</boardgames>

I can extract the center of the previous output using:

soup.find_all('boardgame')[0], which produces the following:

Out[24]: 
<boardgame>
<error message="Item not found"/>
</boardgame>

I feel like this should be so easy, and I've tried the following, but I still can't determine if the "error message="Item not found" is in there. What am I missing here?

soup.findAll('boardgame')[0].getText()
Out[26]: '\n\n'

Answer 1

Use the attribute message to get the value.If you to find the error tag first and then use the attribute message

from bs4 import BeautifulSoup

data='''<?xml version="1.0" encoding="utf-8"?>
<boardgames termsofuse="https://boardgamegeek.com/xmlapi/termsofuse">
<boardgame>
<error message="Item not found"/>
</boardgame>
</boardgames>'''

soup=BeautifulSoup(data,'html.parser')
message=soup.find('boardgame').find('error')['message']
print(message)

Output:

Item not found

---

Or you can use css selector

from bs4 import BeautifulSoup

data='''<?xml version="1.0" encoding="utf-8"?>
<boardgames termsofuse="https://boardgamegeek.com/xmlapi/termsofuse">
<boardgame>
<error message="Item not found"/>
</boardgame>
</boardgames>'''

soup=BeautifulSoup(data,'html.parser')

message=soup.select_one('boardgame error')['message']
print(message)

Output:

Item not found