Details
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Bug
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Resolution: Done
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P3: Somewhat important
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5.15.2
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None
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tested on macOS 10.15.7, PySide2 5.15.2, python 3.8.6
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98aba46414b666c27df3904d2b4313f0a16e05dc (pyside/pyside-setup/dev) db9e8e575538c627f9808592e895a9c544d16c4e (pyside/pyside-setup/6.0) ac2a77d7bd84aa01c16916d473b3c77c541b03a8 (pyside/pyside-setup/5.15)
Description
I'm aware that "most applications shouldn't need to recreate a QApplication", but use-cases aside for the moment, when I try to delete and recreate a QCoreApplication using shiboken2.app, no QObject.destroyed signal is ever emitted, and it still instructs me to destroy the QCoreApplication. Here is an example of what I would have expected would work (similar code works in PyQt5):
In [1]: from PySide2.QtCore import QCoreApplication In [2]: app = QCoreApplication([]) In [3]: import shiboken2 In [4]: app Out[4]: <PySide2.QtCore.QCoreApplication(0x7f8ee659b210) at 0x7f8eb97fc2d0> In [5]: shiboken2.delete(app) In [6]: shiboken2.isValid(app) Out[6]: False In [7]: app # as expected # ... RuntimeError: Internal C++ object (PySide2.QtCore.QCoreApplication) already deleted. In [8]: app2 = QCoreApplication([]) --------------------------------------------------------------------------- RuntimeError Traceback (most recent call last) <ipython-input-8-8438d43d5358> in <module> ----> 1 app2 = QCoreApplication([]) RuntimeError: Please destroy the QCoreApplication singleton before creating a new QCoreApplication instance.
if this isn't a bug, then any advice on destroying and recreating an app would be appreciated. Thanks!
Attachments
Issue Links
- relates to
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PYSIDE-2588 QObject-based Python objects deleted when QApplication is explicitly deleted via Shiboken.detele()
- Closed