"AttributeError: 'PigmentFrontend' object has no attribute 'dbus_frontend'" when exiting

[Guillaume Desmottes]

I have this error each time I exit Elisa (using the close button of the WM).

I'm using 0.5.28 on Ubuntu Jaunty.

<type 'exceptions.AttributeError'>
Python 2.5.2: /usr/bin/python
Mon Feb 16 21:11:23 2009

A problem occurred in a Python script. Here is the sequence of
function calls leading up to the error, in the order they occurred.

 /home/cassidy/.elisa-0.5/plugins/elisa_plugin_pigment-0.4.egg/elisa/plugins/pigment/pigment_frontend.py in handle_input(self=<elisa.plugins.pigment.pigment_frontend.PigmentFrontend object at 0x8df7e0c>, input_manager=<InputManager object at 0x8fbea54 (elisa+core+input_manager+InputManager at 0x8e3d680)>, input_event=<elisa.core.input_event.InputEvent instance at 0xa53308c>)
  549 def handle_input(self, input_manager, input_event):
  550 # forward it to the controller
  551 self.controller.handle_input(input_manager, input_event)
  552
  553 def _initialize_theme(self):
self = <elisa.plugins.pigment.pigment_frontend.PigmentFrontend object at 0x8df7e0c>
self.controller = <PoblesecController object at 0xa0e070c (elisa+p...gment_controller+PigmentController at 0x8edfa00)>
self.controller.handle_input = <bound method PoblesecController.handle_input of...ment_controller+PigmentController at 0x8edfa00)>>
input_manager = <InputManager object at 0x8fbea54 (elisa+core+input_manager+InputManager at 0x8e3d680)>
input_event = <elisa.core.input_event.InputEvent instance at 0xa53308c>

 /home/cassidy/.elisa-0.5/plugins/elisa_plugin_poblesec-0.4.egg/elisa/plugins/poblesec/main.py in handle_input(self=<PoblesecController object at 0xa0e070c (elisa+p...gment_controller+PigmentController at 0x8edfa00)>, manager=<InputManager object at 0x8fbea54 (elisa+core+input_manager+InputManager at 0x8e3d680)>, input_event=<elisa.core.input_event.InputEvent instance at 0xa53308c>)
  750 return True
  751
  752 return super(PoblesecController, self).handle_input(manager, input_event)
  753
  754 def get_playable_model(self, file_path):
builtinsuper = <type 'super'>
global PoblesecController = <class 'elisa.plugins.poblesec.main.PoblesecController'>
self = <PoblesecController object at 0xa0e070c (elisa+p...gment_controller+PigmentController at 0x8edfa00)>
).handle_input = <bound method PoblesecController.handle_input of...ment_controller+PigmentController at 0x8edfa00)>>
manager = <InputManager object at 0x8fbea54 (elisa+core+input_manager+InputManager at 0x8e3d680)>
input_event = <elisa.core.input_event.InputEvent instance at 0xa53308c>

 /home/cassidy/.elisa-0.5/plugins/elisa_plugin_pigment-0.4.egg/elisa/plugins/pigment/pigment_controller.py in handle_input(self=<PoblesecController object at 0xa0e070c (elisa+p...gment_controller+PigmentController at 0x8edfa00)>, input_manager=<InputManager object at 0x8fbea54 (elisa+core+input_manager+InputManager at 0x8e3d680)>, input_event=<elisa.core.input_event.InputEvent instance at 0xa53308c>)
   77 def handle_input(self, input_manager, input_event):
   78 if input_event.value == EventValue.KEY_EXIT:
   79 common.application.stop()
   80 return True
   81 return False
global common = <module 'elisa.core.common' from '/home/cassidy/...5/plugins/elisa-0.5.28.egg/elisa/core/common.py'>
common.application = <elisa.core.application.Application object at 0x84f6a6c>
common.application.stop = <bound method Application.stop of <elisa.core.application.Application object at 0x84f6a6c>>

 /home/cassidy/.elisa-0.5/plugins/elisa-0.5.28.egg/elisa/core/application.py in stop(self=<elisa.core.application.Application object at 0x84f6a6c>, stop_reactor=True)
  511 # managers
  512 self.info("Stopping interface controller")
  513 dfr = self.interface_controller.stop()
  514 dfr.addCallback(interface_controller_stopped)
  515 return dfr
dfr undefined
self = <elisa.core.application.Application object at 0x84f6a6c>
self.interface_controller = <elisa.core.interface_controller.InterfaceController object at 0x8f9884c>
self.interface_controller.stop = <bound method InterfaceController.stop of <elisa...troller.InterfaceController object at 0x8f9884c>>

 /home/cassidy/.elisa-0.5/plugins/elisa-0.5.28.egg/elisa/core/interface_controller.py in stop(self=<elisa.core.interface_controller.InterfaceController object at 0x8f9884c>)
  139
  140 for frontend in self.frontends.values():
  141 dfr = frontend.clean()
  142 dfrs.append(dfr)
  143
dfr undefined
frontend = <elisa.plugins.pigment.pigment_frontend.PigmentFrontend object at 0x8df7e0c>
frontend.clean = <bound method PigmentFrontend.clean of <elisa.pl...nt_frontend.PigmentFrontend object at 0x8df7e0c>>

 /home/cassidy/.elisa-0.5/plugins/elisa_plugin_pigment-0.4.egg/elisa/plugins/pigment/pigment_frontend.py in clean(self=<elisa.plugins.pigment.pigment_frontend.PigmentFrontend object at 0x8df7e0c>)
  662
  663 def clean(self):
  664 self._clean_dbus()
  665
  666 if self.controller:
self = <elisa.plugins.pigment.pigment_frontend.PigmentFrontend object at 0x8df7e0c>
self._clean_dbus = <bound method PigmentFrontend._clean_dbus of <el...nt_frontend.PigmentFrontend object at 0x8df7e0c>>

 /home/cassidy/.elisa-0.5/plugins/elisa_plugin_pigment-0.4.egg/elisa/plugins/pigment/pigment_frontend.py in _clean_dbus(self=<elisa.plugins.pigment.pigment_frontend.PigmentFrontend object at 0x8df7e0c>)
  731
  732 bus = dbus.SessionBus()
  733 self.dbus_frontend.remove_from_connection(bus,
  734 '/com/fluendo/Elisa/Plugins/Pigment/Frontend')
  735 # BusName implements __del__, eew
self = <elisa.plugins.pigment.pigment_frontend.PigmentFrontend object at 0x8df7e0c>
self.dbus_frontend undefined
bus = <dbus._dbus.SessionBus (session) at 0x85a147c>
<type 'exceptions.AttributeError'>: 'PigmentFrontend' object has no attribute 'dbus_frontend'
    __class__ = <type 'exceptions.AttributeError'>
    __delattr__ = <method-wrapper '__delattr__' of exceptions.AttributeError object at 0xa6b2c2c>
    __dict__ = {}
    __doc__ = 'Attribute not found.'
    __getattribute__ = <method-wrapper '__getattribute__' of exceptions.AttributeError object at 0xa6b2c2c>
    __getitem__ = <method-wrapper '__getitem__' of exceptions.AttributeError object at 0xa6b2c2c>
    __getslice__ = <method-wrapper '__getslice__' of exceptions.AttributeError object at 0xa6b2c2c>
    __hash__ = <method-wrapper '__hash__' of exceptions.AttributeError object at 0xa6b2c2c>
    __init__ = <method-wrapper '__init__' of exceptions.AttributeError object at 0xa6b2c2c>
    __new__ = <built-in method __new__ of type object at 0x8146aa0>
    __reduce__ = <built-in method __reduce__ of exceptions.AttributeError object at 0xa6b2c2c>
    __reduce_ex__ = <built-in method __reduce_ex__ of exceptions.AttributeError object at 0xa6b2c2c>
    __repr__ = <method-wrapper '__repr__' of exceptions.AttributeError object at 0xa6b2c2c>
    __setattr__ = <method-wrapper '__setattr__' of exceptions.AttributeError object at 0xa6b2c2c>
    __setstate__ = <built-in method __setstate__ of exceptions.AttributeError object at 0xa6b2c2c>
    __str__ = <method-wrapper '__str__' of exceptions.AttributeError object at 0xa6b2c2c>
    args = ("'PigmentFrontend' object has no attribute 'dbus_frontend'",)
    message = "'PigmentFrontend' object has no attribute 'dbus_frontend'"

The above is a description of an error in a Python program. Here is
the original traceback:

Traceback (most recent call last):
  File "/home/cassidy/.elisa-0.5/plugins/elisa_plugin_pigment-0.4.egg/elisa/plugins/pigment/pigment_frontend.py", line 551, in handle_input
    self.controller.handle_input(input_manager, input_event)
  File "/home/cassidy/.elisa-0.5/plugins/elisa_plugin_poblesec-0.4.egg/elisa/plugins/poblesec/main.py", line 752, in handle_input
    return super(PoblesecController, self).handle_input(manager, input_event)
  File "/home/cassidy/.elisa-0.5/plugins/elisa_plugin_pigment-0.4.egg/elisa/plugins/pigment/pigment_controller.py", line 79, in handle_input
    common.application.stop()
  File "/home/cassidy/.elisa-0.5/plugins/elisa-0.5.28.egg/elisa/core/application.py", line 513, in stop
    dfr = self.interface_controller.stop()
  File "/home/cassidy/.elisa-0.5/plugins/elisa-0.5.28.egg/elisa/core/interface_controller.py", line 141, in stop
    dfr = frontend.clean()
  File "/home/cassidy/.elisa-0.5/plugins/elisa_plugin_pigment-0.4.egg/elisa/plugins/pigment/pigment_frontend.py", line 664, in clean
    self._clean_dbus()
  File "/home/cassidy/.elisa-0.5/plugins/elisa_plugin_pigment-0.4.egg/elisa/plugins/pigment/pigment_frontend.py", line 733, in _clean_dbus
    self.dbus_frontend.remove_from_connection(bus,
AttributeError: 'PigmentFrontend' object has no attribute 'dbus_frontend'

[Paul van Tilburg (paulvt)]

Confirmed! I was about to report this too.

[Sudesh (sudeshc-deactivatedaccount)]

On win32 log entry for this error:

Launcher core version: 0.5.27
Current core version: 0.5.28
c:\users\sudeshc\.elisa-0.5\plugins\elisa-0.5.28.egg\elisa\core\utils\classinit.py:34: UserWarning: ClassInitMeta class is deprecated
WARN MainThread plugin_registry Feb 17 11:03:13 plugin elisa-plugin-bluetooth has the following unmet dependencies: pybluez>=0.9.2 (elisa\core\plugin_registry.py:343)
WARN MainThread plugin_registry Feb 17 11:03:13 plugin elisa-plugin-coherence has the following unmet dependencies: coherence>=0.5.7 (elisa\core\plugin_registry.py:343)
c:\users\sudeshc\.elisa-0.5\plugins\elisa-0.5.28.egg\elisa\core\service_manager.py:27: DeprecationWarning: ServiceProvider.start is deprecated.
Traceback (most recent call last):
  File "C:\Program Files\Elisa\deps\lib\site-packages\twisted\internet\base.py", line 381, in iterate

  File "C:\Program Files\Elisa\deps\lib\site-packages\twisted\internet\base.py", line 561, in runUntilCurrent

  File "C:\oabuild\distribuable-dependencies\deps\Release\lib\site-packages\twisted\internet\task.py", line 236, in _tick

  File "c:\users\sudeshc\.elisa-0.5\plugins\elisa-0.5.28.egg\elisa\core\manager.py", line 101, in load_components_iter

--- <exception caught here> ---
  File "c:\users\sudeshc\.elisa-0.5\plugins\elisa-0.5.28.egg\elisa\core\plugin_registry.py", line 1048, in create_component

  File "C:\oabuild\distribuable-dependencies\deps\Release\lib\site-packages\twisted\python\reflect.py", line 357, in namedAny

  File "c:\users\sudeshc\.elisa-0.5\plugins\elisa_plugin_database-0.3.egg\elisa\plugins\database\dbus_service.py", line 19, in <module>

exceptions.ImportError: No module named dbus

WARN MainThread service_manager Feb 17 11:03:16 Creating elisa.plugins.database.dbus_service:DatabaseDBusServiceProvider failed. A full traceback can be found at c:\users\sudeshc\appdata\local\temp\elisa_av1-80.txt (elisa\core\manager.py:97)
WARN MainThread gst_metadata_slave_process_protocol Feb 17 11:03:19 Starting Slave-2 on tcp::49594 launching elisa.plugins.gstreamer.amp_slave.run_slave
(Slave-2 stdout) (elisa\plugins\amp\master.py:54)
WARN MainThread gst_metadata_slave_process_protocol Feb 17 11:03:22 c:\users\sudeshc\.elisa-0.5\plugins\elisa-0.5.28.egg\elisa\core\utils\classinit.py:34: UserWarning: ClassInitMeta class is deprecated

  warn("ClassInitMeta class is deprecated")

(Slave-2 stderr) (elisa\plugins\amp\master.py:57)
WARN MainThread gst_metadata_slave_process_protocol Feb 17 11:03:23 Starting Slave-5 on tcp::49598 launching elisa.plugins.gstreamer.amp_slave.run_slave
(Slave-5 stdout) (elisa\plugins\amp\master.py:54)
WARN MainThread gst_metadata_slave_process_protocol Feb 17 11:03:26 c:\users\sudeshc\.elisa-0.5\plugins\elisa-0.5.28.egg\elisa\core\utils\classinit.py:34: UserWarning: ClassInitMeta class is deprecated

  warn("ClassInitMeta class is deprecated")

(Slave-5 stderr) (elisa\plugins\amp\master.py:57)
==> at https://login.yahoo.com/config/login?.src=flickr&.pc=5134&.scrumb=0&.pd=c%3DE0.GahOp2e4MjkX.5l2HgAoLkpmyPvccpVM-&.intl=us&.done=https%3A%2F%2Flogin.yahoo.com%2Fconfig%...

[Guillaume Emont (guijemont)]

You put the finger on a non trivial bug. The way we do clean up for now is a bit of a mess, and quite incomplete, which triggers that bug: we clean the front-end without waiting for some deferreds that need it. These are most likely leaked deferred hidden in the code, that could be due to some architectural issues. I think it is quite a big task to tackle, and we might not fix it for a while since it does not seem to have any functional consequences, which is why I set the Importance to Low. Please correct me if you do have functionnal issues triggered by that.

[Philippe Normand (philn)]

After quick investigation, the delete-event of the viewport triggers the same code patch, twice. From pigment_input and pigment_frontend. Removing the one in pigment_input fixes the problem.

[yippi (brian-cameron)]

This bug is also happening using Elisa 0.5.28 on Solaris. No matter how you quit Elisa (by clicking in the "X" button in elisa itself, or when running in a metacity window and clicking the close button. It seems impossible to exit elisa without seeing this crash on Solaris.