OSError: MATLAB Engine for Python 3.8 on MacBook Pro with M1 chip

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After running the setup.py file I am trying to import the MATLAB engine from python and i get an OSError:
Please reinstall MATLAB Engine for Python or contact MathWorks Technical Support for assistance: dlopen(/Applications/MATLAB_R2020b.app/extern/engines/python/dist/matlab/engine/maci64/matlabengineforpython3_8.so, 2): no suitable image found. Did find:
/Applications/MATLAB_R2020b.app/extern/engines/python/dist/matlab/engine/maci64/matlabengineforpython3_8.so: mach-o, but wrong architecture
/Applications/MATLAB_R2020b.app/extern/engines/python/dist/matlab/engine/maci64/matlabengineforpython3_8.so: mach-o, but wrong architecture
I have run the usual command:
import matlab.engine
I have MATLAB 2020b latest version running smoothly via rosetta on the said machine. Aren't the MATLAB python engine libraries updated to handle the same.
Kindly help me circumvent this problem.
  2 Comments
xenon zhang
xenon zhang on 1 Nov 2021
hello, you can use
arch -x86_64 python3
instand of
python3
in terminal to run python as a x86 program (without install another version), then matlab engine can working well

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Answers (2)

Rashed Mohammed
Rashed Mohammed on 28 Jan 2021
Hi Mehul,
Since you are trying to load matlab engine (which is x86_64) from python3, It is necessary to run python3 also under rosetta2. I was able to reproduce your issue and running python3 under rosetta2 fixed the issue.
Hope this helps!
  2 Comments
xenon zhang
xenon zhang on 1 Nov 2021
@Hyung-Chun Lee you can try
arch -x86_64 python3
to run your script, for example
arch -x86_64 python3 test.py
instand of
python3 test.py
it work for me

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alaa Ahmed
alaa Ahmed on 31 May 2022
If you are running matlab in Macbook pro with MATLAB 2020b .. Please run this command on matlab command window so that you set the python evironment directory
pyversion /usr/local/bin/python3
Then type pyenv, you will be able to find all PythonEnvironment feilds are filled :D
pyenv
ans =
PythonEnvironment with properties:
Version: "3.8"
Executable: "/usr/local/bin/python3"
Library: "/Library/Frameworks/Python.framework/Versions/3.8/lib/libpython3.8.dylib"
Home: "/Library/Frameworks/Python.framework/Versions/3.8"
Status: NotLoaded
ExecutionMode: OutOfProcess

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