# -*- coding: utf-8 -*-
# Copyright 2016 Étienne Bersac
# Copyright 2016 Julien Danjou
# Copyright 2016 Joshua Harlow
# Copyright 2013-2014 Ray Holder
#
# 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.
try:
import asyncio
except ImportError:
asyncio = None
import sys
from tenacity import BaseRetrying
from tenacity import DoAttempt
from tenacity import DoSleep
from tenacity import RetryCallState
if asyncio:
class AsyncRetrying(BaseRetrying):
def __init__(self,
sleep=asyncio.sleep,
**kwargs):
super(AsyncRetrying, self).__init__(**kwargs)
self.sleep = sleep
@asyncio.coroutine
def call(self, fn, *args, **kwargs):
self.begin(fn)
retry_state = RetryCallState(
retry_object=self, fn=fn, args=args, kwargs=kwargs)
while True:
do = self.iter(retry_state=retry_state)
if isinstance(do, DoAttempt):
try:
result = yield from fn(*args, **kwargs)
except BaseException:
retry_state.set_exception(sys.exc_info())
else:
retry_state.set_result(result)
elif isinstance(do, DoSleep):
retry_state.prepare_for_next_attempt()
yield from self.sleep(do)
else:
return do