[Psycho_Coder]

for xml parsing use lxml its fast efficient and very user friendly

I am still using etree, I must check the others sometime. But still I find etree to be very clear.

EDIT: Does lxml.etree has a tostring() method that supports "pretty_print=True" as args?

Yes. Have a look : http://lxml.de/tutorial.html#the-e-factory

It has much more capabilities.