new_contents: html_doc = """
  <html><head><title>The Dormouse's story</title></head>
      <body>
  <p class="title"><b>The Dormouse's story</b></p>
  
  <p class="story">Once upon a time there were three little sisters; and their names were
  <a href="http://example.com/elsie" class="sister" id="link1">Elsie</a>,
  <a href="http://example.com/lacie" class="sister" id="link2">Lacie</a> and
  <a href="http://example.com/tillie" class="sister" id="link3">Tillie</a>;
  and they lived at the bottom of a well.</p>
  
  <p class="story">...</p>
  """
  
  from bs4 import BeautifulSoup
  soup = BeautifulSoup(html_doc, 'html.parser')
  #soup.p['class']='story'
  for sibling in soup.a.next_siblings:
      print(repr(sibling))
  
subject: Create demo.py