On Thu, 12 Jul 2012 21:08:11 +0200, Rodolfo Zitellini <xhero...@gmail.com> wrote: > Hi All, > I'm trying to run a pyqt software (frescobaldi, > http://frescobaldi.org/) in macos using macports. I have macports > 2.1.1 on macosx 10.7.4, xcode 4.3.2 (qt 4.8.2, pyqt 4.9.1, sip 4.13.2, > for completeness). > > My problem, it seems, is that object will never be null but only > QPyNullVariant. Eg.: > > language = QSettings().value("language", "") > if language: > #do stuff > else > #fallback > > language is never null: it is either the correct class or > QPyNullVariant (instead of null!), so it always tests true. > I'm asking this here in this list since with the old qt for mac 4.7 it > worked. I also tried the same software on linux, with qt 4.8.1 and > same pyqt/sip, and it works as is should (i.e. null and not > QPyNullVariant). > > I initially suspected it could be a compilation configuration option, > but I could not find anything. Anyone han an idea of what I can be > doing wrong?
I don't know what you mean by null in this context, but ... http://www.riverbankcomputing.com/static/Docs/PyQt4/html/incompatibilities.html#pyqt-v4-9-2 ...may help. Phil _______________________________________________ PyQt mailing list PyQt@riverbankcomputing.com http://www.riverbankcomputing.com/mailman/listinfo/pyqt
