python - 剥离 html 标签之间的空间

Question

我有一个包含一些 html 标签的字符串，如下所示:

"<p>   This is a   test   </p>"

我想去掉标签之间的所有多余空格。我尝试了以下方法:

In [1]: import re

In [2]: val = "<p>   This is a   test   </p>"

In [3]: re.sub("\s{2,}", "", val)
Out[3]: '<p>This is atest</p>'

In [4]: re.sub("\s\s+", "", val)
Out[4]: '<p>This is atest</p>'

In [5]: re.sub("\s+", "", val)
Out[5]: '<p>Thisisatest</p>'

但我无法获得所需的结果，即 <p>This is a test</p>

我怎样才能做到这一点？

Answer 1

尝试使用类似 BeautifulSoup 的 HTML 解析器:

from bs4 import BeautifulSoup as BS
s = "<p>   This is a   test   </p>"
soup = BS(s)
soup.find('p').string =  ' '.join(soup.find('p').text.split())
print soup

返回:

<p>This is a test</p>