QtAsyncio handle_sigint QDockWidget Timer Issue?

Michael Barth

I was going to start integrating asyncio into my application. If I use QtAsyncio.run(handle_sigint=True)

I get the following output if I use Ctrl+C in the console:

QObject::killTimer: Timers cannot be stopped from another thread
QObject::~QObject: Timers cannot be stopped from another thread

I've narrowed this down to using QDockWidget. Here is a minimally reproducible example (basically the minimal example on the docs trimmed down to just a dock widget) :

# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
from __future__ import annotations

from PySide6.QtWidgets import (QApplication, QMainWindow, QDockWidget)

import PySide6.QtAsyncio as QtAsyncio
import sys

class MainWindow(QMainWindow):
    def __init__(self):
        super().__init__()
        widget = QDockWidget()
        self.setCentralWidget(widget)


if __name__ == "__main__":
    app = QApplication(sys.argv)
    main_window = MainWindow()
    main_window.show()

    QtAsyncio.run(handle_sigint=True)

Based on my understanding of asyncio, I'm not spinning up an additional thread, so I'm confused. I supposed it's possible that the SIGINT comes from another thread and there's improper handling there. I couldn't reproduce this by just creating a 1 second timer. (I didn't try very hard)

I'm using PySide6 on Windows 11. Here's the version I have:

python -m pip show pyside6
Name: PySide6
Version: 6.8.2
Summary: Python bindings for the Qt cross-platform application and UI framework
Home-page: https://pyside.org
Author:
Author-email: Qt for Python Team <pyside@qt-project.org>
License: LGPL
Location: C:\Users\Michael.Barth\AppData\Local\Programs\Python\Python312\Lib\site-packages
Requires: PySide6-Addons, PySide6-Essentials, shiboken6
Required-by:

Am I misunderstanding something/doing something wrong?