Compiled Matlab Python module doesn't work with Windows App store Python

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Duc Le 2021-5-18

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/833153-compiled-matlab-python-module-doesn-t-work-with-windows-app-store-python

评论： Duc Le 2022-9-27

python_example.zip

The generated Python module using mcc or compiler.build.pythonPackage does not work on the Python environment installed by the Windows App Store.

It works fine on the "official" Python environment obtained from python.org and on environments installed using conda/Anaconda.

Using the environment (Python 3.8.10) installed by the Windows App Store, it gives this error:

Traceback (most recent call last):
  File "makesqrSample1.py", line 13, in <module>
    my_MagicSquarePkg = MagicSquarePkg.initialize()
  File "C:\Users\x\src\py_mat_magic\MagicSquarePkgpythonPackage\MagicSquarePkg\__init__.py", line 322, in initialize
    return _pir.initialize_package()
  File "C:\Users\x\src\py_mat_magic\MagicSquarePkgpythonPackage\MagicSquarePkg\__init__.py", line 270, in initialize_package
    package_handle.initialize()
  File "C:\Program Files\MATLAB\R2021a\toolbox\compiler_sdk\pysdk_py\matlab_pysdk\runtime\deployablepackage.py", line 37, in initialize
    mcr_handle = self.__cppext_handle.startMatlabRuntimeInstance(self.__ctf_path)
SystemError: class foundation::core::except::Exception<class MCR::mclmcr::MCLMCR_UNKNOWN_ERROR_INITIALIZING_MCR,class pysdk_runtime::RuntimeException,void>

This error can be reproduced with the attached files. First run compile_it.m and then run run_it.bat (after installing Python from the Windows App store https://www.microsoft.com/en-gb/p/python-38/9mssztt1n39l ).

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Azim 2022-9-27

Switching to the "official" Python environment also solved this issue for me. Thanks!

Duc Le 2022-9-27

Yeah. I raised a service request and Mathworks said they don't support the windows app store version - and amended the docs to say it: "MATLAB does not support CPython versions installed from the Microsoft® store." (https://www.mathworks.com/help/matlab/matlab_external/install-supported-python-implementation.html)

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