# Copyright 2011 OpenStack Foundation.
# All Rights Reserved.
#
#    Licensed under the Apache License, Version 2.0 (the "License"); you may
#    not use this file except in compliance with the License. You may obtain
#    a copy of the License at
#
#         http://www.apache.org/licenses/LICENSE-2.0
#
#    Unless required by applicable law or agreed to in writing, software
#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
#    License for the specific language governing permissions and limitations
#    under the License.

"""
System-level utilities and helper functions.
"""

import errno
import logging
import multiprocessing
import os
import random
import shlex
import signal

from eventlet.green import subprocess
from eventlet import greenthread
from oslo.utils import strutils
import six

from cue.openstack.common._i18n import _


LOG = logging.getLogger(__name__)


class InvalidArgumentError(Exception):
    def __init__(self, message=None):
        super(InvalidArgumentError, self).__init__(message)