Exporting Matlab code as Python package: Coolprop dependency error

1 次查看（过去 30 天）
VS
VS 2024-7-9
编辑： Walter Roberson 2024-7-19
I have a Matlab code that accesses python wrapper for CoolProp and uses CoolProp.CoolProp.PropsSI function calls to get state properties in the form of py.CoolProp.CoolProp.PropsSI(...).
For example:
function T = test(p)
T= py.CoolProp.CoolProp.PropsSI('T','P',p,'Q',0,"Nitrogen");
end
If you run it from Matlab, everything works.
Following the steps in Create Python Application Using Library Compiler App I exported the Matlab functions as a python package. It is explicitly stated that the dependencies are recognized and added automatically. However, I encountered the following error when a function is called (see Package MATLAB Function and Deploy to Python Application) in Python:
import matlab_package as mtl
handle = mtl.initialize()
T = handle.test(100000)
MatlabRuntimeError: An error occurred when evaluating the result from a function. Details: File ....m, line ..., in ...\mcrCache23.2\...\...\....m, line ..., in run_model Unable to resolve the name 'py.CoolProp.CoolProp.PropsSI'.
I am not sure how I need to export it so that the dependency works. Any help?
UPDATE:
I narrowed down the issue to the InProcess operation of MatlabRuntime. Is there a way to invoke it Out-Of-Process? I have included
pyenv(ExecutionMode="OutOfProcess")
into the packaged matlab function, but it doesn't seem help it.

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回答（1 个）

Oliver Jaehrig
Oliver Jaehrig 2024-7-10
编辑：Walter Roberson 2024-7-19
  1 个评论
VS
VS 2024-7-19
编辑：VS 2024-7-19
sadly it didn't help. I believe the problem lies in the execution mode of the Matlab runtime. It runs InProcess, and I cannot find a way to invoke it Out-Of-Process

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