Bookmarks plugin does not create bazaar.conf file

If ~/.bazaar/bazaar.conf does not yet exist, bookmarks does not create it and report an error :
bzr: ERROR: [Errno 2] No such file or directory: '/home/test/.bazaar/bazaar.conf'

It would be nice to create this file if needed just like e.g. whoami command.

.bzr.log :
0.112 encoding stdout as sys.stdout encoding 'ISO-8859-1'
0.114 bzr arguments: [u'bookmark', u'bookmark', u'https://launchpad.net/bzr-bookmarks/']
0.114 looking for plugins in /share/bazaar/plugins
0.185 looking for plugins in /home/test/.bazaar/plugins
0.185 looking for plugins in /usr/local/lib/python2.5/site-packages/bzrlib/plugins
0.185 Plugin name __init__ already loaded
0.185 Plugin name __init__ already loaded
0.191 encoding stdout as sys.stdout encoding 'ISO-8859-1'
0.193 Traceback (most recent call last):
  File "/usr/local/lib/python2.5/site-packages/bzrlib/commands.py", line 834, in run_bzr_catch_errors
    return run_bzr(argv)
  File "/usr/local/lib/python2.5/site-packages/bzrlib/commands.py", line 790, in run_bzr
    ret = run(*run_argv)
  File "/usr/local/lib/python2.5/site-packages/bzrlib/commands.py", line 492, in run_argv_aliases
    return self.run(**all_cmd_args)
  File "/share/bazaar/plugins/bookmarks/__init__.py", line 99, in run
    parser.write(file(config._get_filename(), 'wb'))
IOError: [Errno 2] No such file or directory: '/home/test/.bazaar/bazaar.conf'

0.193 return code 3