Files
quantconnect--lean/Tests/RegressionAlgorithms/Test_CustomDataAlgorithm.py
Colton Sellers b8674731a5 Feature 2456 custom Python consolidator support (#4637)
* DataConsolidator Wrapper for Python Consolidators

* Regression Unit Test

* Refactor Regression test

* Bad test fix

* pre review

* self review

* Add RegisterIndicator for Python Consolidator

* Python base class for consolidators

* Modify regression algo to register indicator

* unit test - attach event

* Test fix

* Fix test python imports

* Add license header file and null check

Co-authored-by: Martin Molinero <martin.molinero1@gmail.com>
2020-08-25 17:26:55 -03:00

80 lines
3.1 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 clr import AddReference
AddReference("System")
AddReference("QuantConnect.Algorithm")
AddReference("QuantConnect.Algorithm.Framework")
AddReference("QuantConnect.Common")
from System import *
from QuantConnect import *
from QuantConnect.Algorithm import *
from QuantConnect.Algorithm.Framework import *
from QuantConnect.Algorithm.Framework.Alphas import *
from QuantConnect.Algorithm.Framework.Execution import *
from QuantConnect.Algorithm.Framework.Portfolio import *
from QuantConnect.Algorithm.Framework.Risk import *
from QuantConnect.Algorithm.Framework.Selection import *
from QuantConnect.Data import *
from QuantConnect.Python import *
from datetime import datetime
import decimal
class Test_CustomDataAlgorithm(QCAlgorithm):
def Initialize(self):
self.AddData(Nifty, "NIFTY")
self.AddData(QuandlFuture, "SCF/CME_CL1_ON", Resolution.Daily)
class QuandlFuture(PythonQuandl):
'''Custom quandl data type for setting customized value column name. Value column is used for the primary trading calculations and charting.'''
def __init__(self):
# Define ValueColumnName: cannot be None, Empty or non-existant column name
# If ValueColumnName is "Close", do not use PythonQuandl, use Quandl:
# self.AddData[QuandlFuture](self.crude, Resolution.Daily)
self.ValueColumnName = "Settle"
class Nifty(PythonData):
'''NIFTY Custom Data Class'''
def GetSource(self, config, date, isLiveMode):
return SubscriptionDataSource("https://www.dropbox.com/s/rsmg44jr6wexn2h/CNXNIFTY.csv?dl=1", SubscriptionTransportMedium.RemoteFile);
def Reader(self, config, line, date, isLiveMode):
if not (line.strip() and line[0].isdigit()): return None
# New Nifty object
index = Nifty();
index.Symbol = config.Symbol
try:
# Example File Format:
# Date, Open High Low Close Volume Turnover
# 2011-09-13 7792.9 7799.9 7722.65 7748.7 116534670 6107.78
data = line.split(',')
index.Time = datetime.strptime(data[0], "%Y-%m-%d")
index.Value = decimal.Decimal(data[4])
index["Open"] = float(data[1])
index["High"] = float(data[2])
index["Low"] = float(data[3])
index["Close"] = float(data[4])
except ValueError:
# Do nothing
return None
return index