Comment 4 for bug 832864

(this is way off topic for the bug, but wth). Launchpad uses an internal fork of sbuild from ages ago (before the apt/aptitude resolvers) which is why the internal resolver is closer to launchpad. Debian uses the aptitude resolver on most buildds, and apt on some.

Yeah, I'm still building it too... And I pointed the debian maintainer to this bug, he generally cares about Ubuntu (and has a PPA where newer pysides have built just fine https://launchpad.net/~pyside/+archive/ppa/+packages )