A new optional argument quit_qapp can be passed to QtAsyncio.run() to configure whether the QCoreApplication at the core of QtAsyncio should be shut down when asyncio finishes. A special case where one would want to disable this is test suites that want to reuse a single QCoreApplication instance across all unit tests, which would fail if this instance is shut down every time. Pick-to: 6.6 Fixes: PYSIDE-2575 Task-number: PYSIDE-769 Change-Id: I49cd0a50311fb30cc50df9b7f6a6d73fe8c58613 Reviewed-by: Shyamnath Premnadh <Shyamnath.Premnadh@qt.io> Reviewed-by: Friedemann Kleint <Friedemann.Kleint@qt.io>