[Python-modules-team] Bug#867794: python3-pyqt5: App tray icon won't show if show() before systray is available

[Dmitry Shachnev]

Control: reassign -1 libqt5widgets5 5.7.1+dfsg-4
Control: forwarded -1 https://bugreports.qt.io/browse/QTBUG-61898

Hi Jérôme,

On Sun, Jul 09, 2017 at 10:56:05PM +0200, Jérôme wrote:
> Here's a minified example to reproduce the issue :
>
> [...]
>
> Remove systray applet from panel, launch code, add systray applet. The
> icon does not show up.

This is a bug in Qt, and I can confirm it with Qt 5.9 and C++ code.

If you want to workaround this in your code, do not call show() unless
QSystemTrayIcon.isSystemTrayAvailable() returns True.

--
Dmitry Shachnev
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