Message in .xsession-errors - ERROR:dbus.connection:Exception in handler for D-Bus signal

[Cristian Aravena Romero]

Binary package hint: dbus

See .xsession.errors:

ERROR:dbus.connection:Exception in handler for D-Bus signal:
Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.6/dbus/connection.py", line 214, in maybe_handle_message
    self._handler(*args, **kwargs)
TypeError: signal_handler() takes exactly 1 argument (2 given)
ERROR:dbus.connection:Exception in handler for D-Bus signal:
Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.6/dbus/connection.py", line 214, in maybe_handle_message
    self._handler(*args, **kwargs)
TypeError: signal_handler() takes exactly 1 argument (2 given)
ERROR:dbus.connection:Exception in handler for D-Bus signal:
Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.6/dbus/connection.py", line 214, in maybe_handle_message
    self._handler(*args, **kwargs)
TypeError: signal_handler() takes exactly 1 argument (2 given)
** (update-notifier:2007): DEBUG: Skipping reboot required

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: dbus 1.2.16-2ubuntu4
Uname: Linux 2.6.34-020634rc6-generic i686
Architecture: i386
Date: Thu May 6 18:22:32 2010
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta i386 (20100406.1)
ProcEnviron:
 LANG=es_CL.utf8
 SHELL=/bin/bash
SourcePackage: dbus

[Cristian Aravena Romero (caravena)]

Binary package hint: dbus

See .xsession.errors:

ERROR:dbus.connection:Exception in handler for D-Bus signal:
Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.6/dbus/connection.py", line 214, in maybe_handle_message
    self._handler(*args, **kwargs)
TypeError: signal_handler() takes exactly 1 argument (2 given)
ERROR:dbus.connection:Exception in handler for D-Bus signal:
Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.6/dbus/connection.py", line 214, in maybe_handle_message
    self._handler(*args, **kwargs)
TypeError: signal_handler() takes exactly 1 argument (2 given)
ERROR:dbus.connection:Exception in handler for D-Bus signal:
Traceback (most recent call last):
  File "/usr/lib/pymodules/python2.6/dbus/connection.py", line 214, in maybe_handle_message
    self._handler(*args, **kwargs)
TypeError: signal_handler() takes exactly 1 argument (2 given)
** (update-notifier:2007): DEBUG: Skipping reboot required

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: dbus 1.2.16-2ubuntu4
Uname: Linux 2.6.34-020634rc6-generic i686
Architecture: i386
Date: Thu May 6 18:22:32 2010
InstallationMedia: Ubuntu 10.04 "Lucid Lynx" - Beta i386 (20100406.1)
ProcEnviron:
 LANG=es_CL.utf8
 SHELL=/bin/bash
SourcePackage: dbus

[Simon McVittie (smcv)]

Someone has defined a function signal_handler() that takes one argument, and connected it to some signal, but that signal was then received with two arguments. Whatever module defines signal_handler() is probably out of sync with the D-Bus API of whatever module emits the signal.

What else could dbus-python do about this, other than logging a warning and carrying on?

(There's a genuine dbus-python bug here too, which is that it doesn't know the process name, so it can't log it.)