[PyQt] Saving PyObjects QSettings

[Paul Giannaros]

You do not need two config files this way. For example:

o = pickle.dumps(myDevices)
settings.setValue('test', QVariant(o))
print pickle.loads(str(settings.value(o).toString()))

On Thu, Jul 31, 2008 at 2:57 PM, Lukas <LuHe at gmx.at> wrote:
> Hello,
> yes I know, but the disadvantage is that I need two config files, so this is
> just me last resort
> Can I convert a list() to/from a QList() and save then this? Are QLists
> available in PyQt?
>
> On Thursday 31 July 2008 15:47:10 Paul Giannaros wrote:
>> You could just use the pickle module and save and load from the
>> resulting string. I'm not sure if there's a "better" way to do it,
>> however.
>>
>> On Thu, Jul 31, 2008 at 2:38 PM, Lukas <LuHe at gmx.at> wrote:
>> > Hello,
>> >
>> > I wanted to save a PyObject in my QSettings:
>> >>>> from PyQt4.QtGui import *
>> >>>> app = QApplication([])
>> >>>> settings = QSettings()
>> >>>>
>> >>>> myDevices = list()
>> >>>> device = dict()
>> >>>> device["name"] = "just some testing"
>> >>>> device["addr"] = "00:22:33:5A:52"
>> >>>> myDevices.append(device)
>> >>>>
>> >>>> QVariant(myDevices)
>> >
>> > <PyQt4.QtCore.QVariant object at 0x7f682c6b7c00>
>> >
>> >>>> QVariant(myDevices).toPyObject()
>> >
>> > [{'name': 'just some testing', 'addr': '00:22:33:5A:52'}]
>> >
>> > But when I try to save this I get the following error:
>> >>>> settings.setValue("test", QVariant(myDevices))
>> >>>> QVariant::save: unable to save type 446.
>> >
>> > Is there a way to save python objects?
>> >
>> > Thanks,
>> >
>> > Lukas Hetzenecker
>> > _______________________________________________
>> > PyQt mailing list    PyQt at riverbankcomputing.com
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