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

[Nyall Dawson]

On 29 Nov 2016 7:36 AM, "Alessandro Pasotti" <apasotti at gmail.com> wrote:

Il 28/nov/2016 20:32, "Nyall Dawson" <nyall.dawson at gmail.com> ha scritto:
>
>
>
> On 29 Nov 2016 12:55 AM, "Alessandro Pasotti" <apasotti at gmail.com> wrote:
>>
>> 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'
>
>
> Shouldn't that be QApplication.arguments()?
>
> http://doc.qt.io/qt-5/qcoreapplication.html#arguments
>
> There's no QApplication::argv member.
>
> Nyall
>

Thanks, arguments() works the same as argv() for Qt5.

Do you by chance know where does argv member come from in PyQt4? I couldn't
find it in the Qt 4.8 docs, that's why I was confused. Was it a PyQt
addition? http://pyqt.sourceforge.net/Docs/PyQt4/qcoreapplication.html#argv


I'm not sure either - it had me confused too. Maybe it was a qt3 thing that
pyqt4 was aliasing to arguments(). But there's no mention of a related
change in the PyQt5 changes.

Nyall


>>
>>
>> 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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>>> >
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>>
>>
>>
>>
>> --
>> Alessandro Pasotti
>> w3:   www.itopen.it
>>
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