Using XML w/ Python...

[James]

XPath is the least painful way of doing it.

Here are some samples with various libraries for XPath
http://www.oreillynet.com/pub/wlg/6225

Read XPath basics here
http://www.w3schools.com/xpath/default.asp

It is not practical and perhaps not polite to expect people write
tutorials just for you and send by email. There are a lot of tutorials
on the web on this. Just use Google.