dbus.exceptions.DBusException: org.freedesktop.DBus.Error.ServiceUnknown: The name org.opensuse.Snapper was not provided by any .service files

[Marietto2008]

On Ubuntu 24.04 :

root@Z390-AORUS-PRO-DEST:/home/ziomario/Scaricati/snapper-gui#  python3 setup.py install

running install
/usr/lib/python3/dist-packages/setuptools/_distutils/cmd.py:66: SetuptoolsDeprecationWarning: setup.py install is deprecated.
!!

        ********************************************************************************
        Please avoid running ``setup.py`` directly.
        Instead, use pypa/build, pypa/installer or other
        standards-based tools.

        See https://blog.ganssle.io/articles/2021/10/setup-py-deprecated.html for details.
        ********************************************************************************

!!
  self.initialize_options()
running build
running build_py
creating build
creating build/lib
creating build/lib/snappergui
copying snappergui/createSnapshot.py -> build/lib/snappergui
copying snappergui/application.py -> build/lib/snappergui
copying snappergui/mainWindow.py -> build/lib/snappergui
copying snappergui/changesWindow.py -> build/lib/snappergui
copying snappergui/snapshotsView.py -> build/lib/snappergui
copying snappergui/deleteDialog.py -> build/lib/snappergui
copying snappergui/createConfig.py -> build/lib/snappergui
copying snappergui/__init__.py -> build/lib/snappergui
copying snappergui/propertiesDialog.py -> build/lib/snappergui
creating build/lib/snappergui/glade
copying snappergui/glade/changesWindow.glade -> build/lib/snappergui/glade
copying snappergui/glade/mainWindow.glade -> build/lib/snappergui/glade
copying snappergui/glade/createSnapshot.glade -> build/lib/snappergui/glade
copying snappergui/glade/propertiesDialog.glade -> build/lib/snappergui/glade
copying snappergui/glade/deleteSnapshot.glade -> build/lib/snappergui/glade
copying snappergui/glade/createConfig.glade -> build/lib/snappergui/glade
copying snappergui/glade/snapshotsView.glade -> build/lib/snappergui/glade
creating build/lib/snappergui/ui
copying snappergui/ui/app-menu.ui -> build/lib/snappergui/ui
running install_lib
creating /usr/local/lib/python3.12/dist-packages/snappergui
copying build/lib/snappergui/createSnapshot.py -> /usr/local/lib/python3.12/dist-packages/snappergui
creating /usr/local/lib/python3.12/dist-packages/snappergui/glade
copying build/lib/snappergui/glade/changesWindow.glade -> /usr/local/lib/python3.12/dist-packages/snappergui/glade
copying build/lib/snappergui/glade/mainWindow.glade -> /usr/local/lib/python3.12/dist-packages/snappergui/glade
copying build/lib/snappergui/glade/createSnapshot.glade -> /usr/local/lib/python3.12/dist-packages/snappergui/glade
copying build/lib/snappergui/glade/propertiesDialog.glade -> /usr/local/lib/python3.12/dist-packages/snappergui/glade
copying build/lib/snappergui/glade/deleteSnapshot.glade -> /usr/local/lib/python3.12/dist-packages/snappergui/glade
copying build/lib/snappergui/glade/createConfig.glade -> /usr/local/lib/python3.12/dist-packages/snappergui/glade
copying build/lib/snappergui/glade/snapshotsView.glade -> /usr/local/lib/python3.12/dist-packages/snappergui/glade
copying build/lib/snappergui/application.py -> /usr/local/lib/python3.12/dist-packages/snappergui
copying build/lib/snappergui/mainWindow.py -> /usr/local/lib/python3.12/dist-packages/snappergui
creating /usr/local/lib/python3.12/dist-packages/snappergui/ui
copying build/lib/snappergui/ui/app-menu.ui -> /usr/local/lib/python3.12/dist-packages/snappergui/ui
copying build/lib/snappergui/changesWindow.py -> /usr/local/lib/python3.12/dist-packages/snappergui
copying build/lib/snappergui/snapshotsView.py -> /usr/local/lib/python3.12/dist-packages/snappergui
copying build/lib/snappergui/deleteDialog.py -> /usr/local/lib/python3.12/dist-packages/snappergui
copying build/lib/snappergui/createConfig.py -> /usr/local/lib/python3.12/dist-packages/snappergui
copying build/lib/snappergui/__init__.py -> /usr/local/lib/python3.12/dist-packages/snappergui
copying build/lib/snappergui/propertiesDialog.py -> /usr/local/lib/python3.12/dist-packages/snappergui
byte-compiling /usr/local/lib/python3.12/dist-packages/snappergui/createSnapshot.py to createSnapshot.cpython-312.pyc
byte-compiling /usr/local/lib/python3.12/dist-packages/snappergui/application.py to application.cpython-312.pyc
byte-compiling /usr/local/lib/python3.12/dist-packages/snappergui/mainWindow.py to mainWindow.cpython-312.pyc
byte-compiling /usr/local/lib/python3.12/dist-packages/snappergui/changesWindow.py to changesWindow.cpython-312.pyc
byte-compiling /usr/local/lib/python3.12/dist-packages/snappergui/snapshotsView.py to snapshotsView.cpython-312.pyc
byte-compiling /usr/local/lib/python3.12/dist-packages/snappergui/deleteDialog.py to deleteDialog.cpython-312.pyc
byte-compiling /usr/local/lib/python3.12/dist-packages/snappergui/createConfig.py to createConfig.cpython-312.pyc
byte-compiling /usr/local/lib/python3.12/dist-packages/snappergui/__init__.py to __init__.cpython-312.pyc
byte-compiling /usr/local/lib/python3.12/dist-packages/snappergui/propertiesDialog.py to propertiesDialog.cpython-312.pyc
running install_data
copying snapper-gui.desktop -> /usr/local/share/applications
running install_egg_info
running egg_info
creating snappergui.egg-info
writing snappergui.egg-info/PKG-INFO
writing dependency_links to snappergui.egg-info/dependency_links.txt
writing entry points to snappergui.egg-info/entry_points.txt
writing top-level names to snappergui.egg-info/top_level.txt
writing manifest file 'snappergui.egg-info/SOURCES.txt'
reading manifest file 'snappergui.egg-info/SOURCES.txt'
adding license file 'LICENSE'
writing manifest file 'snappergui.egg-info/SOURCES.txt'
Copying snappergui.egg-info to /usr/local/lib/python3.12/dist-packages/snappergui-0.1.egg-info
running install_scripts
Installing snapper-gui script to /usr/local/bin
writing list of installed files to 'RECORD'
root@Z390-AORUS-PRO-DEST:/home/ziomario/Scaricati/snapper-gui# snapper-gui
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 173, in activate_name_owner
    return self.get_name_owner(bus_name)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 348, in get_name_owner
    return self.call_blocking(BUS_DAEMON_NAME, BUS_DAEMON_PATH,
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/dbus/connection.py", line 634, in call_blocking
    reply_message = self.send_message_with_reply_and_block(
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.NameHasNoOwner: Could not get owner of name 'org.opensuse.Snapper': no such name

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/local/bin/snapper-gui", line 33, in <module>
    sys.exit(load_entry_point('snappergui==0.1', 'gui_scripts', 'snapper-gui')())
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/bin/snapper-gui", line 25, in importlib_load_entry_point
    return next(matches).load()
           ^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/importlib/metadata/__init__.py", line 205, in load
    module = import_module(match.group('module'))
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/importlib/__init__.py", line 90, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "<frozen importlib._bootstrap>", line 1387, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1360, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1310, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed
  File "<frozen importlib._bootstrap>", line 1387, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1360, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1331, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 935, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 995, in exec_module
  File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed
  File "/usr/local/lib/python3.12/dist-packages/snappergui/__init__.py", line 8, in <module>
    snapper = dbus.Interface(bus.get_object('org.opensuse.Snapper',
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 237, in get_object
    return self.ProxyObjectClass(self, bus_name, object_path,
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/dbus/proxies.py", line 250, in __init__
    self._named_service = conn.activate_name_owner(bus_name)
                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 178, in activate_name_owner
    self.start_service_by_name(bus_name)
  File "/usr/lib/python3/dist-packages/dbus/bus.py", line 273, in start_service_by_name
    return (True, self.call_blocking(BUS_DAEMON_NAME, BUS_DAEMON_PATH,
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/dbus/connection.py", line 634, in call_blocking
    reply_message = self.send_message_with_reply_and_block(
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.ServiceUnknown: The name org.opensuse.Snapper was not provided by any .service files