[PyQt] Small problem storing a list in QSettings

Andreas Pakulat apaku at gmx.de
Sun Sep 4 16:25:56 BST 2011


On 02.09.11 16:12:49, Phil Thompson wrote:
> On Thu, 1 Sep 2011 23:04:06 +0200, Andreas Pakulat <apaku at gmx.de> wrote:
> > Hi,
> > 
> > I'm facing a small problem with QSettings and storing a python list in
> > it. It seems that I can't store an empty list properly into a QSettings
> > object, its always converted to an invalid QVariant somewhere along the
> > way. The attached sample script shows this, all is well until I create a
> > new QSettings object from the file and try to get the list again. The
> > printout of the ini file also shows this.
> > 
> > Specifying the type for the value() call does not work, that raises an
> > error that the conversion of the QVariant does not work due to different
> > typeids (0 vs.  256).
> > 
> > Am I doing something wrong or do I really need to serialize the list
> > manually into a string? (Can't even use QStringList here since thats not
> > available with the v2 API).
> > 
> > sip: 4.12.1
> > PyQt: 4.8.3
> > Qt: 4.7.3
> 
> The problem with specifying an explicit type should be fixed in tonight's
> snapshot.

Ok, but what about the @Invalid being stored if I give
QSettings.setValue an empty list as value? Is that expected?

Andreas
 


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