Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
654 views
in Technique[技术] by (71.8m points)

python - Extract all <script> tags in an HTML page and append to the bottom of the document

Could someone tell me how I can extract and remove all the <script> tags in a HTML document and add them to the end of the document, right before the </body></html>? I'd like to try and avoid using lxml please.

Thanks.

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

The answer is simple and may miss many nuances. How ever, this should give you an idea of how to go about doing it, improving it in general. I am sure this can be improved but you should be able to do that quickly with help of the documentation.

Reference doc: http://www.crummy.com/software/BeautifulSoup/documentation.html

from bs4 import BeautifulSoup

doc = ['<html><script type="text/javascript">document.write("Hello World!")',
       '</script><head><title>Page title</title></head>',
       '<body><p id="firstpara" align="center">This is paragraph <b>one</b>.',
       '<p id="secondpara" align="blah">This is paragraph <b>two</b>.',
       '</html>']
soup = BeautifulSoup(''.join(doc))


for tag in soup.findAll('script'):
    # Use extract to remove the tag
    tag.extract()
    # use simple insert
    soup.body.insert(len(soup.body.contents), tag)

print soup.prettify()

Output:

<html>
 <head>
  <title>
   Page title
  </title>
 </head>
 <body>
  <p id="firstpara" align="center">
   This is paragraph
   <b>
    one
   </b>
   .
  </p>
  <p id="secondpara" align="blah">
   This is paragraph
   <b>
    two
   </b>
   .
  </p>
  <script type="text/javascript">
   document.write("Hello World!")
  </script>
 </body>
</html>

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...