`javaStyleMethodNames` and using `self.assertSomething`. Despite its inclusion in the standard library, `unittest` is not a very Pythonic library (it comes from the days when most of the advanced portions of the stdlib was ported over from Java). Nose is slightly better and Attest[1] is the only one that I would really call "Pythonic."

[1]: http://packages.python.org/Attest/

Selenium 1.x does, but 2.x talks straight to the web browser via WebDriver. That may not be a technically accurate description of what's going on, but to the developer that's what it looks like. No Java server to start up.