https://bugzilla.wikimedia.org/show_bug.cgi?id=55138
--- Comment #5 from Kunal Mehta (Legoktm) legoktm.wikipedia@gmail.com --- {self.setSource(self.site().language())} is allowed in python 2.7 but not in python 2.6. I think we want to keep python 2.6 compatibility, right?