使用BeautifulSoup4从网页获取文本时，获取“None”和“NoneType object…”错误

Question

我试图从BBC体育版上调出主要标题（目前是：“温格预测‘活跃’的一月”）。ID是'lead caption'，它位于<h2>和<a>标记中。我在用Python。你知道吗

from bs4 import BeautifulSoup
import urllib2
url = urllib2.urlopen("http://www.bbc.co.uk/sport/football/teams/arsenal")
soup=BeautifulSoup(url.read())
#Things I've tried
headline=soup.find('a', attrs={'id': 'lead-caption'})
print headline
#The above prints 'None'
headline1=soup.find('lead-caption').getText()
print headline1
#The above print "'NoneTpye' Object has no attirbute 'getText'
tag = soup.a
tag ['id'] = 'lead-caption'
type(tag)
print tag.string
#Error: NoneType object does not support item assignment

任何帮助都将不胜感激。谢谢：）

Answer 1

你的代码几乎是正确的，你在错误的元素中寻找，这就是为什么你得到None，它应该是div：

headline=soup.find('div', attrs={'id': 'lead-caption'})
headline_text=headline.find('a').getText()
print headline_text

输出：

Wenger predicts 'active' January