84 lines
2.4 KiB
Python
84 lines
2.4 KiB
Python
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#!/bin/env python
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import subprocess
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# three possibilities for DBUS in python:
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# * dbus-python (it's legacy and when i tried it, it didn't really work -- missing SessionBus(), ...)
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# * pydbus (seems pretty neat)
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# * txdbus (haven't tried it; apparently it's a native python dbus implementation)
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#
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#
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# official python doc on dbus
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# https://wiki.python.org/moin/DbusExamples
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#
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# pydbus tutorial
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# https://github.com/LEW21/pydbus/blob/master/doc/tutorial.rst
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from pydbus import SessionBus, SystemBus
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# required for the mainloop
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from gi.repository import GLib
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(rows, cols) = subprocess.check_output(["stty", "size"]).split()
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def send_desktop_notification(title="Hello World", msg="pydbus works!"):
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"""Send a notification to the desktop environment to display"""
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bus = SessionBus()
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notifications = bus.get('.Notifications')
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notifications.Notify('test', 0, 'dialog-information', title, msg, [], {}, 5000)
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def list_systemd_units():
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"""Fetch all systemd units and print them"""
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bus = SystemBus()
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# systemd is now a proxy for the .systemd1 remote object
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systemd = bus.get(".systemd1")
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for unit in systemd.ListUnits():
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print("Unit:\n")
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print(unit)
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print("-" * int(cols))
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def stop_start_systemd_unit(name="ssh.service"):
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"""Stop and restart a systemd unit"""
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bus = SystemBus()
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# systemd is now a proxy for the .systemd1 remote object
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systemd = bus.get(".systemd1")
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job1 = systemd.StopUnit(name, "fail")
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job2 = systemd.StartUnit(name, "fail")
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def watch_for_new_systemd_jobs():
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"""Wait for new systemd units and when they are created, print them out"""
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bus = SystemBus()
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# systemd is now a proxy for the .systemd1 remote object
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systemd = bus.get(".systemd1")
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systemd.JobNew.connect(print)
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GLib.MainLoop().run()
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# or
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#
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# systemd.onJobNew = print
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# GLib.MainLoop.run()
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def hibernate():
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try:
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bus = SessionBus()
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power = bus.get('org.gnome.PowerManager', '/org/gnome/PowerManager')
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if power.CanHibernate():
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answer = input("Do you want to hibernate? [Y/n]:")
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if answer.lower() == "y":
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power.Hibernate()
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else:
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print("Cannot hibernate")
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except GLib.Error as e:
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print("Could not get PowerManager from DBUS")
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if __name__ == "__main__":
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send_desktop_notification("Guten Tag", "pydbus funktioniert, mein Herr!")
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# list_systemd_units()
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hibernate()
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