New in trunk. Screen scraping capabilities.
Example:
>>> import re
>>> from gluon.html import web2pyHTMLParser
>>> from urllib import urlopen
>>> html=urlopen('http://nobelprize.org/nobel_prizes/physics/laureates/1921/einstein-bio.html').read()
>>> tree=web2pyHTMLParser(html).tree ### NEW!!
>>> elements=tree.elements('div') # search by tag type
>>> elements=tree.elements(_id="Einstein") # search by attribute value (id for
>>> example)
>>> elements=tree.elements(find='Einstein') # text search NEW!!
>>> elements=tree.elements(find=re.compile('Einstein')) # search via regex NEW!!
>>> print elements[0]
<title>Albert Einstein - Biography</title>
>>> print elements[0][0]
Albert Einstein - Biography
>>> elements[0].append(SPAN(' modified'))
<title>Albert Einstein - Biography<span>modified</span></title>
>>> print tree
<html lang="en" xml:lang="en" xmlns="http://www.w3.org/1999/xhtml";>
<head>
<title>Albert Einstein - Biography<span>modified<span></title>
...
