Haven't tracked this one down yet, but just wanted to give a heads-up that
if a context's __init__.py raises an exception, WebKit just swallows it and
never tells you. That's bad in general and particularly when you realize
that means that your site set up code did not finish executing. Later on
you'll end up with some strange exception in your site and not realize the
We'll try to get this fixed before the next release.