[PyQt] PyQt5.4 stuck on QtQuick.Dialogs

Fabien Castan fabcastan at gmail.com
Tue Jan 27 00:36:49 GMT 2015


Here is a minimal example.
Thanks

2015-01-27 1:20 GMT+01:00 Phil Thompson <phil at riverbankcomputing.com>:

> On 27/01/2015 12:14 am, Fabien Castan wrote:
>
>> Hi,
>> I still have the problem with the latest snapshot
>> "PyQt-gpl-5.4.1-snapshot-55f521ae431b".
>>
>> #0  pthread_cond_wait@@GLIBC_2.3.2 () at
>> ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
>> #1  0x00007ffff01f9b03 in QWaitCondition::wait(QMutex*, unsigned long) ()
>> from /opt/Qt5.4/5.4/gcc_64/lib/libQt5Core.so.5
>> #2  0x00007fffec5cc7c2 in ?? () from
>> /opt/Qt5.4/5.4/gcc_64/lib/libQt5Qml.so.5
>> #3  0x00007fffec570134 in ?? () from
>> /opt/Qt5.4/5.4/gcc_64/lib/libQt5Qml.so.5
>> #4  0x00007fffec570590 in ?? () from
>> /opt/Qt5.4/5.4/gcc_64/lib/libQt5Qml.so.5
>> #5  0x00007fffec5536dd in QQmlComponentPrivate::loadUrl(QUrl const&,
>> QQmlComponent::CompilationMode) () from
>> /opt/Qt5.4/5.4/gcc_64/lib/libQt5Qml.so.5
>> #6  0x00007fffe93f5ecf in meth_QQmlComponent_loadUrl () from
>> /home/fab/Téléchargements/ButtleOFX_Alpha_Linux64_v2.0/
>> py3.3_env/lib/python3.3/site-packages/PyQt5/QtQml.so
>>
>> Regards,
>> Fabien
>>
>
> Then I need a complete, small example that demonstrates the problem.
>
> Phil
>
>
>  2015-01-03 11:23 GMT+01:00 Phil Thompson <phil at riverbankcomputing.com>:
>>
>>  On 02/01/2015 11:29 pm, Fabien Castan wrote:
>>>
>>>  Hi,
>>>>
>>>> I have installed Qt5.4 and compiled PyQt5.4 (with python3.4).
>>>> But I'm stuck when loading a QML file which uses QtQuick.Dialogs.
>>>>
>>>> Here is a simple QML example:
>>>>
>>>> ```
>>>>
>>>> import QtQuick 2.0
>>>>
>>>> import QtQuick.Controls 1.0
>>>>
>>>> import QtQuick.Dialogs 1.2 // works fine if you comment this line
>>>>
>>>>
>>>> ApplicationWindow {
>>>>
>>>>
>>>>     id: root
>>>>
>>>>     title:"Title"
>>>>
>>>>
>>>>     width: 1200
>>>>
>>>>     height: 800
>>>>
>>>> }
>>>>
>>>> ```
>>>>
>>>>
>>>> This QML file is loaded without trouble using "qmlscene".
>>>> When I load it from PyQt it remains blocked...
>>>> If I run python3 inside gdb, and kill the process, I get this backtrace:
>>>>
>>>> (gdb) bt
>>>> #0  pthread_cond_wait@@GLIBC_2.3.2 () at
>>>> ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
>>>>
>>>>
>>> Most likely to be the GIL not being released when it should causing a
>>> deadlock. Hopefully fixed in tonight's snapshot.
>>>
>>> Thanks,
>>> Phil
>>> _______________________________________________
>>> PyQt mailing list    PyQt at riverbankcomputing.com
>>> http://www.riverbankcomputing.com/mailman/listinfo/pyqt
>>>
>>
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