Open et QApplication

support
1

Hi,
I’m trying to run Qt according to the scripts given in the book, for example tableview_tablemodel.py and following.
It doesn’t work at all, it crashes on db.open()
After searching the forums, the solution came from creating a QCoreApplication object before doing anything else. typically,
from PyQt6.QtCore import QCoreApplication
app = QCoreApplication()
But I’m only half satisfied with this because I don’t know what to do with this object afterwards.
All other parameters are correct: file rights, directories, distribution, etc…
If I create a blank venv with only PyQt6, it’s all the same.
I’m running Win11, Py3.12
My chinook.sqlite source is correct, and the same thing happens with a more basic script and an addDatabase
At runtime, I get the error Process finished with exit code -1073741819 (0xC0000005)
Any ideas?
Regards

2

@Rodrigue, Usually this means C++ code crash. But reason can be really hard to detect. Did you try really simple app just QLabel and CentralWidget?
Can you try PyQt6 and PySide6?

import sys
from PySide6.QtWidgets import QApplication, QLabel, QMainWindow

class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()
        self.label = QLabel("Hello, PySide6!", self)
        self.label.setGeometry(50, 50, 200, 40)
        self.setWindowTitle("PySide6 QLabel Example")
        self.setGeometry(300, 300, 300, 200)

if __name__ == "__main__":
    app = QApplication(sys.argv)
    window = MainWindow()
    window.show()
    sys.exit(app.exec())