[2.0] maas createadmin fails

[Andres Rodriguez]

ubuntu@nec-maas:/var/tmp$ sudo maas createadmin
usage: /usr/bin/maas [-h] COMMAND ...

optional arguments:
  -h, --help show this help message and exit

drill down:
  COMMAND
    refresh Refresh the API descriptions of all profiles.
    list List remote APIs that have been logged-in to.
    login Log in to a remote API, and remember its description and
                  credentials.
    logout Log out of a remote API, purging any stored credentials.
    apikey Used to manage a user's API keys. Shows existing keys unless
                  --generate or --delete is passed.
    createadmin Create a MAAS administrator account.
    changepassword
                  Change a MAAS user's password.
    admin Interact with http://localhost/MAAS/api/2.0/

http://maas.io/

'Namespace' object has no attribute 'execute_from_command_line'