﻿# 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.Indicators")
AddReference("QuantConnect.Common")

from System import *
from QuantConnect import *
from QuantConnect.Data import *

### <summary>
### Benchmark Algorithm: The minimalist basic template algorithm benchmark strategy.
### </summary>
### <remarks>
### All new projects in the cloud are created with the basic template algorithm. It uses a minute algorithm
### </remarks>
class BasicTemplateBenchmark(QCAlgorithm):

    def Initialize(self):
        self.SetStartDate(2000, 1, 1)
        self.SetEndDate(2017, 1, 1)    
        self.SetBenchmark(lambda x: 1)
        self.AddEquity("SPY")
    
    def OnData(self, data):
        self.SetHoldings("SPY", 1)
        self.Debug("Purchased Stock")

﻿# 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.Indicators")
AddReference("QuantConnect.Common")

from System import *
from QuantConnect import *
from QuantConnect.Data import *

### <summary>
### Benchmark Algorithm: The minimalist basic template algorithm benchmark strategy.
### </summary>
### <remarks>
### All new projects in the cloud are created with the basic template algorithm. It uses a minute algorithm
### </remarks>
class BasicTemplateBenchmark(QCAlgorithm):

    def Initialize(self):
        self.SetStartDate(2000, 1, 1)
        self.SetEndDate(2017, 1, 1)    
        self.SetBenchmark(lambda x: 1)
        self.AddEquity("SPY")
    
    def OnData(self, data):
        if not self.Portfolio.Invested:
            self.SetHoldings("SPY", 1)
            self.Debug("Purchased Stock")
Add the portfolio check