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quantconnect--lean/Algorithm.Python/CoarseFineAsyncUniverseRegressionAlgorithm.py
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2026-07-13 13:02:50 +08:00

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1.8 KiB
Python

# QUANTCONNECT.COM - Democratizing Finance, Empowering Individuals.
# Lean Algorithmic Trading Engine v2.0. Copyright 2014 QuantConnect Corporation.
#
# 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.
from AlgorithmImports import *
### <summary>
### Regression algorithm asserting that using separate coarse & fine selection with async universe settings is not allowed
### </summary>
class CoarseFineAsyncUniverseRegressionAlgorithm(QCAlgorithm):
def initialize(self):
'''Initialise the data and resolution required, as well as the cash and start-end dates for your algorithm. All algorithms must initialized.'''
self.set_start_date(2013, 10, 7)
self.set_end_date(2013, 10, 11)
self.universe_settings.asynchronous = True
threw_exception = False
try:
self.add_universe(self.coarse_selection_function, self.fine_selection_function)
except:
# expected
threw_exception = True
pass
if not threw_exception:
raise ValueError("Expected exception to be thrown for AddUniverse")
self.set_universe_selection(FineFundamentalUniverseSelectionModel(self.coarse_selection_function, self.fine_selection_function))
def coarse_selection_function(self, coarse):
return []
def fine_selection_function(self, fine):
return []