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# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
"""PySide6 port of the QtDBus pingpong example from Qt v6.x (ping client)"""
import sys
from PySide6.QtCore import QCoreApplication
from PySide6.QtDBus import QDBusConnection, QDBusInterface, QDBusReply
SERVICE_NAME = 'org.example.QtDBus.PingExample'
if __name__ == "__main__":
app = QCoreApplication()
session_bus = QDBusConnection.sessionBus()
if not session_bus.isConnected():
print("Cannot connect to the D-Bus session bus.\n"
"To start it, run:\n"
"\teval `dbus-launch --auto-syntax`\n")
sys.exit(-1)
iface = QDBusInterface(SERVICE_NAME, '/', '', session_bus)
if not iface.isValid():
print(session_bus.lastError().message())
sys.exit(-1)
argument = sys.argv[1] if len(sys.argv) > 1 else 'Hello'
message = iface.call('ping', argument)
reply = QDBusReply(message)
if not reply.isValid():
error = reply.error().message()
print(f'ping: Call failed: {error}')
sys.exit(-1)
value = reply.value()
print(f'ping: Reply was: {value}')
sys.exit(0)
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