Files
quantconnect--lean/Algorithm.Python/InceptionDateSelectionRegressionAlgorithm.py
T
Martin-Molinero 03f56481d4
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Refactor python algorithm import (#5657)
* Python research import improvements

- Improve start.py for research env
- Remove unrequired imports

* Centralize algorithm imports

* Add regression test GH action

* Unit test python import clean up

* Join research and main imports

* More python import clean up

* Fix failing skipped regression algorithm
2021-06-15 19:06:06 -03:00

52 lines
2.0 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 to test universe additions and removals with open positions
### </summary>
### <meta name="tag" content="regression test" />
class InceptionDateSelectionRegressionAlgorithm(QCAlgorithm):
def Initialize(self):
self.SetStartDate(2013,10,1)
self.SetEndDate(2013,10,31)
self.SetCash(100000)
self.changes = None
self.UniverseSettings.Resolution = Resolution.Hour
# select IBM once a week, empty universe the other days
self.AddUniverseSelection(CustomUniverseSelectionModel("my-custom-universe", lambda dt: ["IBM"] if dt.day % 7 == 0 else []))
# Adds SPY 5 days after StartDate and keep it in Universe
self.AddUniverseSelection(InceptionDateUniverseSelectionModel("spy-inception", {"SPY": self.StartDate + timedelta(5)}));
def OnData(self, slice):
if self.changes is None:
return
# we'll simply go long each security we added to the universe
for security in self.changes.AddedSecurities:
self.SetHoldings(security.Symbol, .5)
self.changes = None
def OnSecuritiesChanged(self, changes):
# liquidate removed securities
for security in changes.RemovedSecurities:
self.Liquidate(security.Symbol, "Removed from Universe")
self.changes = changes