Package: dasbus
dasbusThis DBus library is written in Python 3, based on GLib and inspired by pydbus. Find out more in
thedocumentation.The code used to be part of theAnaconda Installerproject. It was based on thepydbuslibrary, but we replaced
it with our own solution because its upstream development stalled. The dasbus library is
a result of this effort.RequirementsPython 3.6+PyGObject 3You can installPyGObjectprovided by your operating system
or use PyPI. The system package is usually calledpython3-gi,python3-gobjectorpygobject3.
See theinstructionsfor
your platform (only for PyGObject, you don't need cairo or GTK).The library is known to work with Python 3.8, PyGObject 3.34 and GLib 2.63, but these are not the
required minimal versions.InstallationInstall the package fromPyPIor install the package
provided by your operating system if available.Install from PyPIFollow the instructions above to install the requirements before you installdasbuswithpip.
The required dependencies has to be installed manually in this case.pip3 install dasbusInstall the system packageFollow the instructions for your operating system to install thepython-dasbuspackage.
The required dependencies should be installed automatically by the system package manager.Arch LinuxDebian / UbuntuFedora / CentOS / RHELopenSUSEExamplesShow the current hostname.fromdasbus.connectionimportSystemMessageBusbus=SystemMessageBus()proxy=bus.get_proxy("org.freedesktop.hostname1","/org/freedesktop/hostname1")print(proxy.Hostname)Send a notification to the notification server.fromdasbus.connectionimportSessionMessageBusbus=SessionMessageBus()proxy=bus.get_proxy("org.freedesktop.Notifications","/org/freedesktop/Notifications")id=proxy.Notify("",0,"face-smile","Hello World!","This notification can be ignored.",[],{},0)print("The notification{}was sent.".format(id))Handle a closed notification.fromdasbus.loopimportEventLooploop=EventLoop()fromdasbus.connectionimportSessionMessageBusbus=SessionMessageBus()proxy=bus.get_proxy("org.freedesktop.Notifications","/org/freedesktop/Notifications")defcallback(id,reason):print("The notification{}was closed.".format(id))proxy.NotificationClosed.connect(callback)loop.run()Asynchronously fetch a list of network devices.fromdasbus.loopimportEventLooploop=EventLoop()fromdasbus.connectionimportSystemMessageBusbus=SystemMessageBus()proxy=bus.get_proxy("org.freedesktop.NetworkManager","/org/freedesktop/NetworkManager")defcallback(call):print(call())proxy.GetDevices(callback=callback)loop.run()Inhibit the system suspend and hibernation.importosfromdasbus.connectionimportSystemMessageBusfromdasbus.uniximportGLibClientUnixbus=SystemMessageBus()proxy=bus.get_proxy("org.freedesktop.login1","/org/freedesktop/login1",client=GLibClientUnix)fd=proxy.Inhibit("sleep","my-example","Running an example","block")proxy.ListInhibitors()os.close(fd)Define the org.example.HelloWorld service.classHelloWorld(object):__dbus_xml__="""<node><interface name="org.example.HelloWorld"><method name="Hello"><arg direction="in" name="name" type="s" /><arg direction="out" name="return" type="s" /></method></interface></node>"""defHello(self,name):return"Hello{}!".format(name)Define the org.example.HelloWorld service with an automatically generated XML specification.fromdasbus.server.interfaceimportdbus_interfacefromdasbus.typingimportStr@dbus_interface("org.example.HelloWorld")classHelloWorld(object):defHello(self,name:Str)->Str:return"Hello{}!".format(name)print(HelloWorld.__dbus_xml__)Publish the org.example.HelloWorld service on the session message bus.fromdasbus.connectionimportSessionMessageBusbus=SessionMessageBus()bus.publish_object("/org/example/HelloWorld",HelloWorld())bus.register_service("org.example.HelloWorld")fromdasbus.loopimportEventLooploop=EventLoop()loop.run()See more examples in thedocumentation.InspirationLook at thecomplete examplesorDBus servicesof
the Anaconda Installer for more inspiration.