As per the official docs (under standard interfaces):
There are some standard interfaces that may be useful across various
D-Bus applications.
org.freedesktop.DBus.Introspectable
This interface has one method:
org.freedesktop.DBus.Introspectable.Introspect (out STRING xml_data)
Objects instances may implement Introspect which returns an XML
description of the object, including its interfaces (with signals and
methods), objects below it in the object path tree, and its
properties.
So here's a very simplistic example that should get you started. It uses xml.etree.ElementTree and dbus:
#!/usr/bin/env python
import dbus
from xml.etree import ElementTree
def rec_intro(bus, service, object_path):
print(object_path)
obj = bus.get_object(service, object_path)
iface = dbus.Interface(obj, 'org.freedesktop.DBus.Introspectable')
xml_string = iface.Introspect()
for child in ElementTree.fromstring(xml_string):
if child.tag == 'node':
if object_path == '/':
object_path = ''
new_path = '/'.join((object_path, child.attrib['name']))
rec_intro(bus, service, new_path)
bus = dbus.SystemBus()
rec_intro(bus, 'org.freedesktop.UPower', '/org/freedesktop/UPower')
It recursively introspects org.freedesktop.UPower starting from e.g. /org/freedesktop/UPower and prints all object paths (node names):
/org/freedesktop/UPower
/org/freedesktop/UPower/Wakeups
/org/freedesktop/UPower/devices
/org/freedesktop/UPower/devices/DisplayDevice
/org/freedesktop/UPower/devices/battery_BAT0
/org/freedesktop/UPower/devices/line_power_ADP0
which is pretty much what you'd get if you used d-feet (not that you'd need it):
Sure, you can easily get the object paths via command line e.g. with gdbus:
gdbus introspect --system --dest org.freedesktop.UPower --object-path \
/org/freedesktop/UPower --recurse | awk '/^ *node /{print $2}'
/org/freedesktop/UPower
/org/freedesktop/UPower/Wakeups
/org/freedesktop/UPower/devices
/org/freedesktop/UPower/devices/DisplayDevice
/org/freedesktop/UPower/devices/battery_BAT0
/org/freedesktop/UPower/devices/line_power_ADP0
I don't have qdbus installed but according to this page
qdbus --system org.freedesktop.UPower
should produce a similar result.
