Hey guys,

I was trying to setup backtests locally on my Linux Debian 9 machine. The C# program ran fine. I then followed instructions found here: Lean Python

Upon building and running Lean with Python, I get the following error message:

20200710 15:24:38.223 Trace:: PythonInitializer.Initialize(): start...
PythonEngine.Initialize(): Runtime.Initialize()...
20200710 15:24:38.378 ERROR:: Loader.TryCreatePythonAlgorithm(): System.DllNotFoundException: python3.6m assembly:<unknown assembly> type:<unknown type> member:(null)
at (wrapper managed-to-native) Python.Runtime.Runtime.Py_IsInitialized()
at Python.Runtime.Runtime.Initialize () [0x00000] in <c56ab175820d412caf052e079c2ab9ef>:0
at Python.Runtime.PythonEngine.Initialize (System.Collections.Generic.IEnumerable`1[T] args, System.Boolean setSysArgv) [0x0001e] in <c56ab175820d412caf052e079c2ab9ef>:0
at Python.Runtime.PythonEngine.Initialize (System.Boolean setSysArgv) [0x00005] in <c56ab175820d412caf052e079c2ab9ef>:0
at Python.Runtime.PythonEngine.Initialize () [0x00000] in <c56ab175820d412caf052e079c2ab9ef>:0
at QuantConnect.Python.PythonInitializer.Initialize () [0x0001a] in <15882b6f3206495eb733e234fe35e643>:0
at QuantConnect.AlgorithmFactory.Loader.TryCreatePythonAlgorithm (System.String assemblyPath, QuantConnect.Interfaces.IAlgorithm& algorithmInstance, System.String& errorMessage) [0x0005a] in <79b4e9eae48e45fdbe41e76b6c092bd8>:0
20200710 15:24:38.429 ERROR:: Engine.Run(): QuantConnect.Lean.Engine.Setup.AlgorithmSetupException: During the algorithm initialization, the following exception has occurred: Loader.TryCreatePythonAlgorithm(): Unable to import python module ../../../Algorithm.Python/BasicTemplateAlgorithm.py. python3.6m assembly:<unknown assembly> type:<unknown type> member:(null)
at QuantConnect.Lean.Engine.Setup.ConsoleSetupHandler.CreateAlgorithmInstance (QuantConnect.Packets.AlgorithmNodePacket algorithmNodePacket, System.String assemblyPath) [0x000c4] in <9994176d389648808faf1d5881237ae5>:0
at QuantConnect.Lean.Engine.Engine.Run (QuantConnect.Packets.AlgorithmNodePacket job, QuantConnect.Lean.Engine.AlgorithmManager manager, System.String assemblyPath, QuantConnect.Util.WorkerThread workerThread) [0x00101] in <9994176d389648808faf1d5881237ae5>:0
20200710 15:24:38.434 Trace:: JOB HANDLERS:
20200710 15:24:38.434 Trace:: DataFeed: QuantConnect.Lean.Engine.DataFeeds.FileSystemDataFeed
20200710 15:24:38.434 Trace:: Setup: QuantConnect.Lean.Engine.Setup.ConsoleSetupHandler
20200710 15:24:38.434 Trace:: RealTime: QuantConnect.Lean.Engine.RealTime.BacktestingRealTimeHandler
20200710 15:24:38.434 Trace:: Results: QuantConnect.Lean.Engine.Results.BacktestingResultHandler
20200710 15:24:38.434 Trace:: Transactions: QuantConnect.Lean.Engine.TransactionHandlers.BacktestingTransactionHandler
20200710 15:24:38.434 Trace:: Alpha: QuantConnect.Lean.Engine.Alphas.DefaultAlphaHandler
20200710 15:24:38.434 Trace:: ObjectStore: QuantConnect.Lean.Engine.Storage.LocalObjectStore
20200710 15:24:38.435 Trace:: DefaultAlphaHandler.Exit(): Exiting...
20200710 15:24:38.438 Trace:: DefaultAlphaHandler.Exit(): Ended
20200710 15:24:38.438 Trace:: BacktestingResultHandler.Exit(): starting...
20200710 15:24:38.441 Trace:: BacktestingResultHandler.Exit(): Saving logs...
20200710 15:24:38.444 Trace:: StopSafely(): waiting for 'Result Thread' thread to stop...
20200710 15:24:38.482 ERROR:: Algorithm.Initialize() Error: During the algorithm initialization, the following exception has occurred: Loader.TryCreatePythonAlgorithm(): Unable to import python module ../../../Algorithm.Python/BasicTemplateAlgorithm.py. python3.6m assembly:<unknown assembly> type:<unknown type> member:(null) Stack Trace: QuantConnect.Lean.Engine.Setup.AlgorithmSetupException: During the algorithm initialization, the following exception has occurred: Loader.TryCreatePythonAlgorithm(): Unable to import python module ../../../Algorithm.Python/BasicTemplateAlgorithm.py. python3.6m assembly:<unknown assembly> type:<unknown type> member:(null)
at QuantConnect.Lean.Engine.Setup.ConsoleSetupHandler.CreateAlgorithmInstance (QuantConnect.Packets.AlgorithmNodePacket algorithmNodePacket, System.String assemblyPath) [0x000c4] in <9994176d389648808faf1d5881237ae5>:0
at QuantConnect.Lean.Engine.Engine.Run (QuantConnect.Packets.AlgorithmNodePacket job, QuantConnect.Lean.Engine.AlgorithmManager manager, System.String assemblyPath, QuantConnect.Util.WorkerThread workerThread) [0x00101] in <9994176d389648808faf1d5881237ae5>:0
QuantConnect.Lean.Engine.Setup.AlgorithmSetupException: During the algorithm initialization, the following exception has occurred: Loader.TryCreatePythonAlgorithm(): Unable to import python module ../../../Algorithm.Python/BasicTemplateAlgorithm.py. python3.6m assembly:<unknown assembly> type:<unknown type> member:(null)
at QuantConnect.Lean.Engine.Setup.ConsoleSetupHandler.CreateAlgorithmInstance (QuantConnect.Packets.AlgorithmNodePacket algorithmNodePacket, System.String assemblyPath) [0x000c4] in <9994176d389648808faf1d5881237ae5>:0
at QuantConnect.Lean.Engine.Engine.Run (QuantConnect.Packets.AlgorithmNodePacket job, QuantConnect.Lean.Engine.AlgorithmManager manager, System.String assemblyPath, QuantConnect.Util.WorkerThread workerThread) [0x00101] in <9994176d389648808faf1d5881237ae5>:0

I have created a conda environment with python 3.6.8 installed, and I try to execute my Lean build inside that environment. However, when I tried to look for python3.6m (which is mentioned in the log above) using "find / libpython3.6* | grep libpython3.6*", nothing is found. I also tried to install pythonnet using pip install -U git+https://github.com/QuantConnect/pythonnet, that fails as well. 

Any help in fixing this problem shall be greatly appreciated.

Thanks,

Amulya