/usr/lib/python3/dist-packages/autopilot/dbus_handler.py is in python3-autopilot 1.5.1+16.04.20160412-0ubuntu1.
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#
# Autopilot Functional Test Tool
# Copyright (C) 2012-2013 Canonical
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
"""Initialise dbus once using glib mainloop."""
from dbus._dbus import BusConnection
import dbus
from dbus.mainloop.glib import DBusGMainLoop
_glib_loop_set = False
# DBus has an annoying bug where we need to initialise it with the gobject main
# loop *before* it's initialised anywhere else. This module exists so we can
# initialise the dbus module once, and once only.
def _ensure_glib_loop_set():
global _glib_loop_set
if not _glib_loop_set:
DBusGMainLoop(set_as_default=True)
_glib_loop_set = True
def get_session_bus():
"""Return a session bus that has had the DBus GLib main loop
initialised.
"""
_ensure_glib_loop_set()
return dbus.SessionBus()
def get_system_bus():
"""Return a system bus that has had the DBus GLib main loop
initialised.
"""
_ensure_glib_loop_set()
return dbus.SystemBus()
def get_custom_bus(bus_address):
"""Return a custom bus that has had the DBus GLib main loop
initialised.
"""
_ensure_glib_loop_set()
return BusConnection(bus_address)
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