Code review comment for lp:~pitti/ubiquity/pygobject-fixes

Fixed the two test suite failures that I have introduced in 5771, sorry for hassle.

I had to fix the pep8 & pyflakes warnings from your merge proposal. Next time, please run ./test/run-pep8 & ./test/run-pyflakes as well. (they are run as part part of clean target, as well as the shell syntax checks).

Merged.