Introduction to Python (by Ilan Schnell)

Basic XML parsing:

Print the values of src values for all img elements found in a well-formed XHTML document retrieved from the internet.

#!/usr/bin/python
from urllib2 import urlopen
from xml.dom.minidom import parse

dom = parse(urlopen('http://schnell-web.net/'))

for elt in dom.getElementsByTagName('img'):
    print elt.getAttribute('src')

Output:

icon/welcome.gif
imag/tove.jpg
imag/wolf.jpg
imag/arvin.jpg
imag/ilan.jpg