[PyQt] sip. setdestroyonexit

[Zhao Lee]

I always wrap the start-up entry  in a separate function, typically called main(), and never see the Crashes On Exit error , http://pyqt.sourceforge.net/Docs/PyQt5/gotchas.html#crashes-on-exit


def main():
    app = QApplication(sys.argv)


    w = QWidget()
    w.show()


    app.exec()


if __name__ == '__main__':
    main()






在2016年08月16 05时35分, "Phil Thompson"<phil at riverbankcomputing.com>写道:

On 15 Aug 2016, at 9:11 pm, Carl Wolff <carl at wolff-online.nl> wrote:
>
> Hello,
>
> I succesfully applied sip. setdestroyonexit on a fairly large pyqt4 application suffering from occasional crashes at exit time.
>
> My question is twofold:
> - why is destroyonexit not set to False by default;

So as not to change the behaviour of existing applications.

> - Is it (theoretically) possible to live without using this sip call? E.g. by adhering to guidelines regarding pyqt wrapper/qt ownership and qt/python garbage collection? When I read the API documentation of sip.setdestroyonexit carefully, I get the impression that it is impossible to live without this sip call.

As far as I can remember I've never used it in my own code.

Phil
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