Python program that validates an url against w3c markup validator

[yaru22]

I'd like to create a program that validates bunch of urls against the
w3c markup validator (http://validator.w3.org/) and store the result in
a file.

Since I don't know network programming, I have no idea how to start
coding this program.

I was looking at the python library and thought urllib or urllib2 may
be used to make this program work.

But I don't know how to send my urls to the w3c validator and get the
result.

Can anyone help me with this? or at least give me a hint?

Thank you so much.