问题描述
我正在使用BS4编写一个python应用程序,我只想获取任何网页的外部元素。
例如,一个网页可能包含:
<section>
<section>
<section>
</section>
</section>
</section>
<section>
</section>
网页可以具有尽可能多的嵌套部分,但在这种情况下,我只想获取最外面的部分(两个)。
有什么想法吗?
解决方法
您可以将.find_all()
与recursive=False
参数一起使用:
from bs4 import BeautifulSoup
txt = '''
<section>
THIS IS SECTION 1 - I WANT THIS
<section>
THIS IS SECTION 2
<section>
THIS IS SECTION 3
</section>
</section>
</section>
<section>
THIS IS SECTION 4 - I WANT THIS
</section>'''
soup = BeautifulSoup(txt,'html.parser')
for section in soup.find_all('section',recursive=False):
print(section.contents[0].strip())
打印:
THIS IS SECTION 1 - I WANT THIS
THIS IS SECTION 4 - I WANT THIS