I came across PyWebKitGtk and had to try it.
A browser, in 14 lines.

#!/usr/bin/env python

import gtk
import webkit
import gobject

gobject.threads_init()
win = gtk.Window()
bro = webkit.WebView()
bro.open("http://www.google.com")
win.add(bro)
win.show_all()

gtk.main()

And the obligatory screenshot:

A browser in 14 lines of python using webkit and gtk.