PositionsStore is not able to reconstruct, because the custom _init does not have the correct input parameters.

[ffahimi]

Proposal: change _init to _post_init to solve the issue and let the dataclass initialize with all possible attributes.

Error example is here:

Python.Runtime.PythonException: Position.init() got an unexpected keyword argument 'orderId'
File "/QuantConnect/live/./cache/algorithm/project/Tools/PositionsStore.py", line 135, in reconstruct_position
position = Position(**filtered_data)
^^^^^^^^^^^^^^^^^^^^^^^^^
File "/QuantConnect/live/./cache/algorithm/project/Tools/PositionsStore.py", line 149, in
return {int(k): self.reconstruct_position(v) for k, v in data.items()}
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/QuantConnect/live/./cache/algorithm/project/Tools/PositionsStore.py", line 149, in decode
return {int(k): self.reconstruct_position(v) for k, v in data.items()}
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/QuantConnect/live/./cache/algorithm/project/Tools/PositionsStore.py", line 204, in load_positions
unpacked_positions = decoder.decode(json_data)
^^^^^^^^^^^^^^^^^^^^^^^^^
File "/QuantConnect/live/./cache/algorithm/project/main.py", line 80, in Initialize
self.positions_store.load_positions()
at Python.Runtime.PythonException.ThrowLastAsClrException() in C:\Users\jhona\QuantConnect\PythonnetEnterprise\src\runtime\PythonException.cs:line 52
at Python.Runtime.PyObject.Invoke(PyObject[] args) in C:\Users\jhona\QuantConnect\PythonnetEnterprise\src\runtime\PythonTypes\PyObject.cs:line 787
at QuantConnect.Python.PythonWrapper.InvokeMethodImpl(PyObject method, Object[] args) in /LeanCloud/CI.Builder/bin/Debug/src/QuantConnect/LeanEnterprise/Common/Python/PythonWrapper.cs:line 133
at QuantConnect.Python.PythonWrapper.Invoke(PyObject method, Object[] args) in /LeanCloud/CI.Builder/bin/Debug/src/QuantConnect/LeanEnterprise/Common/Python/PythonWrapper.cs:line 120
at QuantConnect.Python.BasePythonWrapper1.InvokeMethod(String methodName, Object[] args) in /LeanCloud/CI.Builder/bin/Debug/src/QuantConnect/LeanEnterprise/Common/Python/BasePythonWrapper.cs:line 166
at QuantConnect.AlgorithmFactory.Python.Wrappers.AlgorithmPythonWrapper.Initialize() in /LeanCloud/CI.Builder/bin/Debug/src/QuantConnect/LeanEnterprise/AlgorithmFactory/Python/Wrappers/AlgorithmPythonWrapper.cs:line 711
at QuantConnect.Lean.Engine.Setup.BrokerageSetupHandler.<>c__DisplayClass28_0.b__1() in /LeanCloud/CI.Builder/bin/Debug/src/QuantConnect/LeanEnterprise/Engine/Setup/BrokerageSetupHandler.cs:line 273Position.init() got an unexpected keyword argument 'orderId'
at reconstruct_position
position = Position(**filtered_data)
^^^^^^^^^^^^^^^^^^^^^^^^^
in PositionsStore.py: line 134
at
return {int(k): self.reconstruct_position(v) for k, v in data.items()}
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
in PositionsStore.py: line 148
at decode
return {int(k): self.reconstruct_position(v) for k, v in data.items()}
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
in PositionsStore.py: line 148
at load_positions
unpacked_positions = decoder.decode(json_data)
^^^^^^^^^^^^^^^^^^^^^^^^^
in PositionsStore.py: line 203
at Initialize
self.positions_store.load_positions()
in main.py: line 79
Position.init() got an unexpected keyword argument 'orderId'