[Qgis-developer] Missing QgsApplication.instance().argv in master

Alessandro Pasotti apasotti at gmail.com
Mon Nov 28 06:55:10 PST 2016


On Mon, Nov 28, 2016 at 3:44 PM, Matthias Kuhn <matthias at opengis.ch> wrote:

> Hi Alessandro,
>
> QApplication is part of PyQt, did you check if it also changed if you
> run a non-QGIS pyqt application?
>


Yes, it seems so:

>>> from PyQt5.QtWidgets import QApplication, QWidget
>>> a = QApplication([])
>>> a.argv()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: 'QApplication' object has no attribute 'argv'


In [2]: import sys
   ...: from PyQt4 import Qt
   ...:
   ...: a = Qt.QApplication(sys.argv)
   ...:

In [3]: a.argv()
Out[3]: ['/usr/local/bin/ipython']


Now I wonder if this is a PyQt bug or something changed in Qt itself

Is there anything we can do to get the argv/argc in a python script running
inside QGIS?

This is needed by the testing environment in
https://github.com/boundlessgeo/qgis-testing-environment-docker/blob/master/qgis_testrunner.py#L150
fortunately, there are some workarounds.



>
> Matthias
>
> On 11/28/2016 03:35 PM, Alessandro Pasotti wrote:
> > Hi,
> >
> > the following code is working fine in 2.x but not in master:
> >
> >>>> QgsApplication.instance().argv()
> > Traceback (most recent call last):
> >   File "/usr/lib/python3.5/code.py", line 91, in runcode
> >     exec(code, self.locals)
> >   File "<input>", line 1, in <module>
> > AttributeError: 'QApplication' object has no attribute 'argv'
> >
> >
> > I looked at the sip file but I did not find the reason why it's now
> > failing, any idea what has changed in this regard?
> >
> >
> > --
> > Alessandro Pasotti
> > w3:   www.itopen.it <http://www.itopen.it>
> >
> >
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-- 
Alessandro Pasotti
w3:   www.itopen.it
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