我想要以下功能.

input : this is test <b> bold text </b> normal text
expected output: this is test normal text

即删除指定标签的内容

解决方法

使用BeautifulSoup的解决方案：

from BeautifulSoup import BeautifulSoup
def removeTag(soup,tagname):
    for tag in soup.findAll(tagname):
        contents = tag.contents
        parent = tag.parent
        tag.extract()

s = BeautifulSoup("abcd <b> btag </b> hello <d>dtag</d>")

removeTag(s,"b")
print s
removeTag(s,"d")
print s

收益：

>>>
abcd  hello <d>dtag</d>
abcd  hello