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# -*- coding: utf-8 -*-
# Copyright (C) 2015 Yahoo! Inc. 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.
import debtcollector.removals
from oslo_utils import importutils
_eventlet = importutils.try_import('eventlet')
EVENTLET_AVAILABLE = bool(_eventlet)
@debtcollector.removals.remove(message='Eventlet support is deprecated.')
def check_for_eventlet(exc=None):
"""Check if eventlet is available and if not raise a runtime error.
:param exc: exception to raise instead of raising a runtime error
:type exc: exception
"""
if not EVENTLET_AVAILABLE:
if exc is None:
raise RuntimeError('Eventlet is not currently available')
else:
raise exc
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