Language Bindings

Have you doublechecked how things should be run inside Maya? I suggest you try running the code as a standalone Python QT app first. For that, your code will need to also instantiate a QApplication object and then run the _exec method on it. That may actually be the reason why you're seeing nothing...

@JonB @SGaist Thanks for taking the time to reply. Sorry I've done a bad job of explaining.. The issue is not with the scanning or sorting at scan time. I'm using a QRunner thread which recursively scans the directory tree, then creates QStandardItem for each file/directory/symlink and puts them into a QStandardItemModel, which is associated with a QTreeView - The scanning and initial sorting (whilst scanning) work perfectly fine. Cnce scanning is complete, a user can use the column headers to change the sorting (i.e. via Name or Type), if I rely upon the default sorting, it causes the UI to freeze whilst the sort is processed. If I use a QSortFilterProxyModel, this freezing does not happen (UI remains interactive and sort is much quicker), but, the problem is, I'm getting the on-selection glitch that I showed above (if I scroll the tree or resize the window, it forces a redraw and fixes it self). I would provide the code.. but, it's a hell of a mess (this is not my day job, I'm just experimenting/playing in the evenings) I've come to the conclusion its a bug / anomaly as I've got the same issue with both PyQT5 and PySide2.. So think I'm going to put this to bed, and move onto something else.

I don't know if you opened this bug: https://bugreports.qt.io/browse/PYSIDE-819 but there is already a patch being reviewed related to a RTTI issue and WebEngine in PySide2, maybe we can continue the discussion there or maybe you can certainly open a new report

I don't know if I got the question right, but the kind of interaction you describe could be possible by "extending" and existing Qt/C++ application to use Qt/Python code. Take a look at this example: https://code.qt.io/cgit/pyside/pyside-setup.git/tree/examples/scriptableapplication There, there is a Qt/C++ Window that shows some Python code which you can run and interact with the Qt/C++ object itself. Please be aware that many things need to be consider, and that you must handle the embedded Python and generate Python bindings for your Qt/C++ potion of code that you want to interact with. Another use-case which was based on that example, is the research that is currently on-going regarding extending QtCreator with Python: https://blog.qt.io/blog/2018/08/15/python-extensions/ I hope those cases are in the same direction as your question.

Yes, it's supported. You can take a look at the following example which passes the --style argument. http://code.qt.io/cgit/pyside/pyside-setup.git/tree/examples/declarative/textproperties/main.py

Hello, do you have some logs related to the build process? It seems to me that there is a mismatch between Qt and PySide2 versions. Which version of Qt did you use? and which branch of PySide2?

What mistake was it ? It might be useful for other people having the same trouble as you.

Hi @sierdzio Thanks for the reply! The API already sends IDs in both formats: int (or double) and string. If that is the case I will use strings in my code. Thank you very much. Regards.

From what's on the report, QtQuick would be a better choice for the UI in that case.

@spanara I would assume you will have to do your steps --- how else would the button know to change its text? But with your "many widgets" you should not have to write code for each widget to handle this/update itself. You should be able to loop over all of them doing the updates in one go.

PyQt is a wrapper on top of Qt, what happens within the Qt classes is on the C++ side.

@pleaseHelpSteve: What worked for me is using QStringModel as described here https://stackoverflow.com/questions/50609986/how-to-connect-python-and-qml-with-pyside2 (or here http://doc.qt.io/qt-5/qtquick-modelviewsdata-cppmodels.html)

Hi, Looks like there's some problem with the PySide 2 implementation. You should check the bug report system to see if it's something known. If not, please consider opening a new report providing your example and as much details as possible about your current setup.

Since you're using conda, try installing the version that is provided through conda, that will make your environment more coherent.

My god... I thought I have a answer... just use this for each widgets I want to create... new_widget.show()

Hi, Just a wild guess but the dialog that you invoke triggers a local event loop that blocks the application flow until you’re done with it. That event loop now processes all the events, so there might be something regarding that.

It is neccessary to run qmake (Build -> Run qmake) after every change, i could be environment variables or any qt project files like prf...