markdown to text python

markdown转换成纯文本：

from bs4 import BeautifulSoup
from markdown import markdown
def markdown_to_text(markdown_string):
    """ Converts a markdown string to plaintext """
    # md -> html -> text since BeautifulSoup can extract text cleanly
    html = markdown(markdown_string)
    # remove code snippets
    html = re.sub(r'<pre>(.*?)</pre>', ' ', html)
    html = re.sub(r'<code>(.*?)</code >', ' ', html)
    # extract text
    soup = BeautifulSoup(html, "html.parser")
    text = ''.join(soup.findAll(text=True))
    return text