What can I do with urllib?
<p>I grasp that it can fetch internet resources, but I'm not really fully appreciating what that means. I was doing the challenges at pythonchallenge.com, and I got past the one that requires urllib to fetch the page and read the source, but I don't see how this is useful quite yet. And examples are kind of lacking in diversity.</p>

<p>What else can it do, or how can I use this to my advantage?</p>

<p>(Besides building a web browser...)</p>
