__init__.py 文件源码

def add_roles(self, user, roles):
        """
        Adds one or more roles to a user. Adding the
        same role more than once has no effect.

        user  -- name of the user
        roles -- one or more roles to add
        """

        if user not in self.users:
            raise UserNotDefined(user)
        roles = (roles,) if isinstance(roles, six.string_types) else roles
        for role in roles:
            if ',' in role:
                raise BadRoleError('\',\' not allowed in role name (%s) '
                                   'for user %s' % (role, user))
            self.roles[user].add(role)