bzr: ERROR: gnomekeyring.IOError:

"bzr update" craches with message "bzr: ERROR: gnomekeyring.IOError:".

Traceback:
Mon 2010-03-08 12:19:15 +0100
0.070 bazaar version: 2.1.0
0.070 bzr arguments: [u'update']
0.088 looking for plugins in /home/engstrom/.bazaar/plugins
0.089 looking for plugins in /usr/lib/python2.6/dist-packages/bzrlib/plugins
0.230 encoding stdout as sys.stdout encoding 'UTF-8'
0.386 opening working tree '/home/engstrom/docs'
0.533 ssh implementation is OpenSSH
0.567 Traceback (most recent call last):
  File "/usr/lib/python2.6/dist-packages/bzrlib/commands.py", line 853, in exception_to_return_code
    return the_callable(*args, **kwargs)
  File "/usr/lib/python2.6/dist-packages/bzrlib/commands.py", line 1055, in run_bzr
    ret = run(*run_argv)
  File "/usr/lib/python2.6/dist-packages/bzrlib/commands.py", line 661, in run_argv_aliases
    return self.run_direct(**all_cmd_args)
  File "/usr/lib/python2.6/dist-packages/bzrlib/commands.py", line 665, in run_direct
    return self._operation.run_simple(*args, **kwargs)
  File "/usr/lib/python2.6/dist-packages/bzrlib/cleanup.py", line 122, in run_simple
    self.cleanups, self.func, *args, **kwargs)
  File "/usr/lib/python2.6/dist-packages/bzrlib/cleanup.py", line 156, in _do_with_cleanups
    result = func(*args, **kwargs)
  File "/usr/lib/python2.6/dist-packages/bzrlib/builtins.py", line 1390, in run
    possible_transports=possible_transports)
  File "/usr/lib/python2.6/dist-packages/bzrlib/decorators.py", line 140, in read_locked
    result = unbound(self, *args, **kwargs)
  File "/usr/lib/python2.6/dist-packages/bzrlib/branch.py", line 2381, in get_master_branch
    possible_transports=possible_transports)
  File "/usr/lib/python2.6/dist-packages/bzrlib/branch.py", line 169, in open
    possible_transports=possible_transports)
  File "/usr/lib/python2.6/dist-packages/bzrlib/bzrdir.py", line 843, in open
    return BzrDir.open_from_transport(t, _unsupported=_unsupported)
  File "/usr/lib/python2.6/dist-packages/bzrlib/bzrdir.py", line 873, in open_from_transport
    redirected)
  File "/usr/lib/python2.6/dist-packages/bzrlib/transport/__init__.py", line 1644, in do_catching_redirections
    return action(transport)
  File "/usr/lib/python2.6/dist-packages/bzrlib/bzrdir.py", line 860, in find_format
    transport, _server_formats=_server_formats)
  File "/usr/lib/python2.6/dist-packages/bzrlib/bzrdir.py", line 1820, in find_format
    return format.probe_transport(transport)
  File "/usr/lib/python2.6/dist-packages/bzrlib/bzrdir.py", line 1830, in probe_transport
    format_string = transport.get_bytes(".bzr/branch-format")
  File "/usr/lib/python2.6/dist-packages/bzrlib/transport/sftp.py", line 435, in get_bytes
    f = self.get(relpath)
  File "/usr/lib/python2.6/dist-packages/bzrlib/transport/sftp.py", line 425, in get
    f = self._get_sftp().file(path, mode='rb')
  File "/usr/lib/python2.6/dist-packages/bzrlib/transport/sftp.py", line 397, in _get_sftp
    connection, credentials = self._create_connection()
  File "/usr/lib/python2.6/dist-packages/bzrlib/transport/sftp.py", line 387, in _create_connection
    user = auth.get_user('ssh', self._host, self._port)
  File "/usr/lib/python2.6/dist-packages/bzrlib/config.py", line 1228, in get_user
    path=path, realm=realm)
  File "/usr/lib/python2.6/dist-packages/bzrlib/config.py", line 1157, in get_credentials
    scheme, host, port, user, path, realm)
  File "/usr/lib/python2.6/dist-packages/bzrlib/config.py", line 1337, in get_fallback_credentials
    path, realm)
  File "/usr/lib/python2.6/dist-packages/bzrlib/plugins/gtk/keyring.py", line 77, in get_credentials
    gnomekeyring.ITEM_NETWORK_PASSWORD, attrs)
IOError

0.699 Transferred: 0KiB (0.0K/s r:0K w:0K)
0.699 return code 4
-----------------------------------------