[PyQt] pyqt5qmlplugin

[Marcus Ottosson]

Thanks, Phil.

I hadn’t used the QML2_IMPORT_PATH, will give it a go next time. May I
suggest including this in a complete example? Perhaps as a shell/bat
script. Alternatively, re-phrasing of the “Note” here
<http://pyqt.sourceforge.net/Docs/PyQt5/qml.html#writing-python-plugins-for-qmlscene>
might help avoid future issues.

Best,
Marcus
​

On 17 November 2014 14:15, Phil Thompson <phil at riverbankcomputing.com>
wrote:

> On 13/11/2014 7:47 am, Marcus Ottosson wrote:
>
>> The Charts example I mentioned related to the example included with PyQt5,
>> it’s this one.
>>
>>    -
>>
>>
>>
>> https://github.com/pyqt/python-qt5/tree/master/PyQt5/
>> examples/quick/tutorials/extending/chapter6-plugins
>>     -
>>
>>    http://qt-project.org/doc/qt-5/qtwidgets-itemviews-chart-example.html
>>
>> Running this as-is produces the problem stated in the original post.
>>
>> Best,
>> Marcus
>>
>
> cd /path/to/chapter6-plugins
> QML2_IMPORT_PATH=$PWD /path/to/qmlscene app.qml
>
> ...works fine for me.
>
> Phil
>
>
>
>  On 11 November 2014 19:00, Phil Thompson <phil at riverbankcomputing.com>
>> wrote:
>>
>>  On 11/11/2014 5:58 pm, Marcus Ottosson wrote:
>>>
>>>  Is my question vague, or is this not implemented as documented?
>>>>
>>>>
>>> As ever, please provide a small complete example that demonstrates the
>>> problem.
>>>
>>> Phil
>>>
>>>  On 9 November 2014 11:24, Marcus Ottosson <konstruktion at gmail.com>
>>> wrote:
>>>
>>>>
>>>>  It looks for a class that is derived from QQmlExtensionPlugin.
>>>>
>>>>>
>>>>> Fair enough, but how come it doesn’t work?
>>>>> ​
>>>>>
>>>>> On 9 November 2014 11:16, Phil Thompson <phil at riverbankcomputing.com>
>>>>> wrote:
>>>>>
>>>>>  On 09/11/2014 10:54 am, Marcus Ottosson wrote:
>>>>>
>>>>>>
>>>>>>  Hi,
>>>>>>
>>>>>>>
>>>>>>> I’m attempting to write a Python plug-in for QML but are having
>>>>>>> issues
>>>>>>> in
>>>>>>> getting it to work.
>>>>>>>
>>>>>>>    -
>>>>>>>
>>>>>>>    PyQt5 5.3.2/5.3.1
>>>>>>>     -
>>>>>>>
>>>>>>>    Qt 5.3.2/5.3.1
>>>>>>>     -
>>>>>>>
>>>>>>>    Python 2.7
>>>>>>>     -
>>>>>>>
>>>>>>>    Ubuntu 12.04 and Windows 8
>>>>>>>
>>>>>>> Running the Charts example produces the error:
>>>>>>>
>>>>>>> ..extending/chapter6-plugins/app.qml:42 module "Charts" is not
>>>>>>> installed
>>>>>>>
>>>>>>> And writing my own does the same. In fact, I’m having trouble
>>>>>>> understanding
>>>>>>> how the qmldir is able to provide enough information about which
>>>>>>> class
>>>>>>> to
>>>>>>> use as subclass of QQmlExtensionPlugin.
>>>>>>>
>>>>>>> Here’s the Charts qmldir file.
>>>>>>>
>>>>>>> module Charts
>>>>>>> plugin pyqt5qmlplugin
>>>>>>>
>>>>>>> I also tried modifying it to point to the directory with the
>>>>>>> pyqt5qmlplugin
>>>>>>> library.
>>>>>>>
>>>>>>> module Charts
>>>>>>> plugin `pyqt5qmlplugin` /home/marcus/Qt/5.3/gcc_64/plugins/PyQt5
>>>>>>>
>>>>>>> If I understand correctly, the pyqt5qmlplugin library is looking for
>>>>>>> a
>>>>>>> Python module with the same name as the module, in this case Charts,
>>>>>>> suffixed with “plugin.py”, so “Chartsplugin.py” (is the upper-case
>>>>>>> relevant
>>>>>>> here?) but when inside, how does it find the right class to use? Does
>>>>>>> it
>>>>>>> need to start with the same name as the module (i.e. “Charts”) and
>>>>>>> end
>>>>>>> with
>>>>>>> “Plugin”?
>>>>>>>
>>>>>>> Is there any other examples of this in action? So far, this is the
>>>>>>> only
>>>>>>> mention of pyqt5qmlplugin I’ve been able to find.
>>>>>>>
>>>>>>>    -
>>>>>>>
>>>>>>> http://pyqt.sourceforge.net/Docs/PyQt5/qml.html#writing-
>>>>>>> python-plugins-for-qmlscene
>>>>>>>
>>>>>>>
>>>>>>>  It looks for a class that is derived from QQmlExtensionPlugin.
>>>>>>
>>>>>> Phil
>>>>>> _______________________________________________
>>>>>> PyQt mailing list    PyQt at riverbankcomputing.com
>>>>>> http://www.riverbankcomputing.com/mailman/listinfo/pyqt
>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> *Marcus Ottosson*
>>>>> konstruktion at gmail.com
>>>>>
>>>>


-- 
*Marcus Ottosson*
konstruktion at gmail.com
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