LC_ALL="C" serpentine
/usr/lib/python2.6/dist-packages/serpentine/preferences.py:262: DeprecationWarning: functions overriding warnings.showwarning() must support the 'line' argument
  g = glade.XML (filename, "preferences_dialog")
/usr/lib/python2.6/dist-packages/serpentine/preferences.py:262: GtkWarning: GtkSpinButton: setting an adjustment with non-zero page size is deprecated
  g = glade.XML (filename, "preferences_dialog")
/usr/lib/python2.6/dist-packages/serpentine/preferences.py:171: DeprecationWarning: functions overriding warnings.showwarning() must support the 'line' argument
  self._speed.widget.set_range(low, max_speed)
/usr/lib/python2.6/dist-packages/serpentine/preferences.py:171: GtkWarning: GtkSpinButton: setting an adjustment with non-zero page size is deprecated
  self._speed.widget.set_range(low, max_speed)
Traceback (most recent call last):
  File "/usr/lib/python2.6/dist-packages/serpentine/operations.py", line 103, in _notify
    func(*args, **kw)
  File "/usr/lib/python2.6/dist-packages/serpentine/plugins/plugsuspend.py", line 44, in on_writing_started
    self.cookie = self.dev.Inhibit('Serpentine', _('Writing audio disc'))
  File "/usr/lib/pymodules/python2.6/dbus/proxies.py", line 68, in __call__
    return self._proxy_method(*args, **keywords)
  File "/usr/lib/pymodules/python2.6/dbus/proxies.py", line 140, in __call__
    **keywords)
  File "/usr/lib/pymodules/python2.6/dbus/connection.py", line 620, in call_blocking
    message, timeout)
DBusException: org.freedesktop.DBus.Error.UnknownMethod: Method "Inhibit" with signature "ss" on interface "org.gnome.PowerManager" doesn't exist

error notifying 'on_writing_started': org.freedesktop.DBus.Error.UnknownMethod: Method "Inhibit" with signature "ss" on interface "org.gnome.PowerManager" doesn't exist

Traceback (most recent call last):
  File "/usr/lib/python2.6/dist-packages/serpentine/operations.py", line 103, in _notify
    func(*args, **kw)
  File "/usr/lib/python2.6/dist-packages/serpentine/recording.py", line 220, in on_finished
    self.filenames.append(self.pool.get_filename(music))
  File "/usr/lib/python2.6/dist-packages/serpentine/converting.py", line 172, in get_filename
    assert self.is_available(music)
AssertionError
error notifying 'on_finished': 
Traceback (most recent call last):
  File "/usr/lib/python2.6/dist-packages/serpentine/operations.py", line 103, in _notify
    func(*args, **kw)
  File "/usr/lib/python2.6/dist-packages/serpentine/plugins/plugsuspend.py", line 47, in on_writing_finished
    self.dev.UnInhibit(self.cookie)
AttributeError: 'InhibitSuspend' object has no attribute 'cookie'
error notifying 'on_writing_finished': 'InhibitSuspend' object has no attribute 'cookie'