QDBusContext / sending error replies via DBus

[Florian Bruhin]

Hey,

I currently have this working example of a DBus service implemented via
PyQt:
https://github.com/qutebrowser/qutebrowser/blob/master/tests/end2end/fixtures/notificationserver.py#L45

Now I'd like to return an error reply to the DBus client in certain
circumstances. How can I do that? With normal Qt code, one would
apparently inherit from QDBusContext instead of QObject, and use
sendErrorReply(): https://doc.qt.io/qt-6/qdbuscontext.html

    When a slot is called in an object due to a signal delivery or due
    to a remote method call, it is sometimes necessary to know the
    context in which that happened. In particular, if the slot
    determines that it wants to send the reply at a later opportunity or
    if it wants to reply with an error, the context is needed.

However, that class seems to be missing in both PyQt5 and PyQt6.

Florian

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