using BeautifulSoup to insert an element before closing body

What is the most efficient way to insert an element as last one in the bod开发者_StackOverflow社区y of an HTML page?

See my answer to a previous question along the same lines:

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

The following should insert just fine:

soup.body.insert(len(soup.body.contents), yourelement)