Cannot install matlab python engine API

I am having trouble installing the python engine for my matlab 2022 version.

I go to "/Applications/MATLAB_R2022a.app/extern/engines/python" and run "python setup.py install"

Last lines of output look like this:

Extracting matlabengineforpython-R2022a-py3.8.egg to /opt/anaconda3/lib/python3.8/site-packages

matlabengineforpython R2022a is already the active version in easy-install.pth

/opt/anaconda3/lib/python3.8/site-packages/pkg_resources/__init__.py:122: PkgResourcesDeprecationWarning: R2022a is an invalid version and will not be supported in a future release

warnings.warn(

Installed /opt/anaconda3/lib/python3.8/site-packages/matlabengineforpython-R2022a-py3.8.egg

Processing dependencies for matlabengineforpython===R2022a

Finished processing dependencies for matlabengineforpython===R2022a

This looks fine. When I enter python3 and try to import the engine ("import matlab.engine"), i get:

>>> import matlab.engine

Traceback (most recent call last):

File "/opt/anaconda3/lib/python3.8/site-packages/matlab/engine/__init__.py", line 46, in <module>

pythonengine = importlib.import_module("matlabengineforpython"+_PYTHONVERSION)

File "/opt/anaconda3/lib/python3.8/importlib/__init__.py", line 127, in import_module

return _bootstrap._gcd_import(name[level:], package, level)

File "<frozen importlib._bootstrap>", line 1014, in _gcd_import

File "<frozen importlib._bootstrap>", line 991, in _find_and_load

File "<frozen importlib._bootstrap>", line 973, in _find_and_load_unlocked

ModuleNotFoundError: No module named 'matlabengineforpython3_8'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):

File "/opt/anaconda3/lib/python3.8/site-packages/matlab/engine/__init__.py", line 65, in <module>

pythonengine = importlib.import_module("matlabengineforpython"+_PYTHONVERSION)

File "/opt/anaconda3/lib/python3.8/importlib/__init__.py", line 127, in import_module

return _bootstrap._gcd_import(name[level:], package, level)

File "<frozen importlib._bootstrap>", line 1014, in _gcd_import

File "<frozen importlib._bootstrap>", line 991, in _find_and_load

File "<frozen importlib._bootstrap>", line 973, in _find_and_load_unlocked

ModuleNotFoundError: No module named 'matlabengineforpython3_8'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):

File "<stdin>", line 1, in <module>

File "/opt/anaconda3/lib/python3.8/site-packages/matlab/engine/__init__.py", line 67, in <module>

raise EnvironmentError('Please reinstall MATLAB Engine for Python or contact '

OSError: Please reinstall MATLAB Engine for Python or contact MathWorks Technical Support for assistance: No module named 'matlabengineforpython3_8'

[Matthew Fall]

I'm having the same issue for both Matlab R2021a and R2021b.

Answer 1

[Harimurali]

I understand that you are unable to install/use the MATLAB engine for Python.

Make sure that the following requirements are satisfied for installing MATLAB engine for Python:

• A licensed version of MATLAB installed on your system.
• Python version compatible with MATLAB is installed. Refer Python versions compatible with MATLAB.

If the above requirements are satisfied you can try the below steps:

1. Open MATLAB as administrator and run the following in the MATLAB command prompt:

>> cd (fullfile(matlabroot,'extern','engines','python'))
>> system('setup.py install')

This will install the MATLAB engine for Python.

2. Now start Python, import the module, and start the MATLAB engine:

import matlab.engine
eng = matlab.engine.start_matlab()

3. For exiting the matlab engine:

eng.quit()

Please refer the following MATLAB tutorial on using MATLAB engine.

[Matthew Fall]

It looks like Makis is already following these steps.