Interesting. The current way of initializing PyQGIS is indeed a bit
cumbersome, it took me a while to get it working! It would be great for
3.0 to simplify the API.
I have an additional question : do you need a QApplication or just
QCoreApplication? I'm using classes from QgsComposer and PyQt4.QtGui but
do not display a GUI as the scripts are entirely automatic. They seem to
work find with QCoreApplication ; are there any potential issues with
doing this?
On 10/28/2015 10:40 AM, DelazJ wrote:
Hi,
It's discussed in this bug report : http://hub.qgis.org/issues/13494
2015-10-28 10:21 GMT+01:00 Luigi Pirelli <[email protected]
<mailto:[email protected]>>:
I suppose QtGui.QApplication(sys.argv) would be before the
initQgis().... new Auth system need a QApplication to work.
I can't remember where there were a Larry Shaffer post regarding
this... I can't find it now. Please ttest and give confirmation in the
list.
regards
Luigi Pirelli
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On 28 October 2015 at 10:01, Alessandro Pasotti <[email protected]
<mailto:[email protected]>> wrote:
> 2015-10-28 9:57 GMT+01:00 François-Xavier Thomas
> <[email protected]
<mailto:[email protected]>>:
>>
>> Hello all,
>>
>> I've just upgraded to QGIS 2.12, in order to test some of my
scripts with
>> the new version, and they just happen to segfault immediately
when I call
>> QgsApplication.initQgis() in 2.12.
>>
>> I've checked the latest docs[1], and the 3 lines mentioned at the
>> beginning are enough to crash the Python interpreter:
>>
>> from qgis.core import *
>> QgsApplication.setPrefixPath("/usr", True)
>> QgsApplication.initQgis()
>>
>
> Try to add QtGui.QApplication(sys.argv) such as:
>
> #Initialize QGIS
> core.QgsApplication.setPrefixPath("/usr", True)
> core.QgsApplication.initQgis()
> # On 2.10 crashes without!
> QtGui.QApplication(sys.argv)
>
>
> I thought it was fixed in 2.12 (and master).
>
>
> --
> Alessandro Pasotti
> w3: www.itopen.it <http://www.itopen.it>
>
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François-Xavier Thomas -- Ingénieur traitement des images
AIRINOV
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