def register(self, deployment_id):
    """ Allows users to register their AppScale deployment with the AppScale
    Portal.

    Raises:
      AppScaleException: If the deployment has already been registered.
    """
    appscale_yaml = yaml.safe_load(self.read_appscalefile())
    if 'keyname' in appscale_yaml:
      keyname = appscale_yaml['keyname']
    else:
      keyname = 'appscale'

    nodes = self.get_nodes(keyname)
    head_node = self.get_head_node(nodes)
    if RegistrationHelper.appscale_has_deployment_id(head_node, keyname):
      existing_id = RegistrationHelper.get_deployment_id(head_node, keyname)
      if existing_id != deployment_id:
        raise AppScaleException(
          'This deployment has already been registered with a different ID.')

    if appscale_yaml in 'infrastructure':
      deployment_type = 'cloud'
    else:
      deployment_type = 'cluster'

    deployment = RegistrationHelper.update_deployment(deployment_type, nodes,
      deployment_id)

    RegistrationHelper.set_deployment_id(head_node, keyname, deployment_id)

    AppScaleLogger.success(
      'Registration complete for AppScale deployment {0}.'
      .format(deployment['name']))
dataset/ETHPy150Open AppScale/appscale-tools/lib/appscale.py/AppScale.register/swapped operands of `in`