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Type: Bug
Resolution: Done
Priority: P4: Low
Fix Version/s: None
Affects Version/s: 6.3.0
Component/s: PySide
Labels:
None

Platform/s:

Linux/X11
Commits:
e4a8e8a139 (pyside/pyside-setup/dev) aeafc8eacd (pyside/pyside-setup/6.3) ef7cb23a10 (pyside/pyside-setup/6.2) ef7cb23a10 (pyside/tqtc-pyside-setup/6.2) aeafc8eacd (pyside/tqtc-pyside-setup/6.3) e4a8e8a139 (pyside/tqtc-pyside-setup/dev)

This code:

# from PyQt6.QtCore import QVariant, QMetaType
# from PyQt6.QtWidgets import QApplication
# from PyQt6.QtDBus import QDBusInterface, QDBusConnection, QDBus, QDBusMessage, QDBusArgument

from PySide6.QtWidgets import QApplication
from PySide6.QtDBus import QDBusInterface, QDBusConnection, QDBus, QDBusMessage

SERVICE = "org.freedesktop.Notifications"
PATH = "/org/freedesktop/Notifications"
INTERFACE = SERVICE

app = QApplication([])
bus = QDBusConnection.sessionBus()
iface = QDBusInterface(SERVICE, PATH, INTERFACE, bus)
assert iface.isValid(), iface.lastError()

iface.call(
    QDBus.CallMode.Block,
    "Notify",
    "test",  # app name
    0,  # replaces_id
    "",  # icon filename
    "title",
    "body",
    [],  # actions
    {},  # hints
    -1,  # timeout
)

works fine with PyQt6, but with PySide6, it raises:

Traceback (most recent call last):
  File "/home/florian/proj/qt/dev6/pyside-setup/test.py", line 17, in <module>
    iface.call(
TypeError: call expected at most 6 arguments, got 10

yet the Qt docs have an overload taking an arbitrary number of arguments, noting that:

Note: Before Qt 5.14, this function accepted a maximum of just eight (8) arguments.

As a workaround, using:

iface.callWithArgumentList(
    QDBus.CallMode.Block,
    "Notify",
    [
        "test",  # app name
        0,  # replaces_id
        "",  # icon filename
        "title",
        "body",
        [],  # actions
        {},  # hints
        -1,  # timeout
    ]
)

seems to work fine (other than ~~PYSIDE-1319~~).