Installing MATLAB Engine API for Python

Hi,

I'm going through the documentation available here https://in.mathworks.com/help/matlab/matlab_external/install-the-matlab-engine-for-python.html to install matlab engine in python.

I did

cd "matlabroot\extern\engines\python"

after which I have to do

python setup.py install

But I am not sure what has to be done when there are multiple python versions installed. How can I specify the path to the python version / virtuen env in which I want to set up the matlab engine in the command `python setup.py install`?

Suggestions will be useful

Answer 1

[Ameer Hamza]

Activate the virtual environment and then run these line

cd "matlabroot\extern\engines\python"
python setup.py install

Alternatively, you can also try the following without activating the environment

cd "matlabroot\extern\engines\python"
/path/to/virtualenv/python setup.py install

but this second option can cause some issues.

[Deepa Maheshvare]

Hi, the first option worked for the installation.

After I try,

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

returns

\Python\Python36\lib\site-packages\matlab\engine\fevalfuture.py", line 82, in result
    self._result = pythonengine.getFEvalResult(self._future,self._nargout, None, out=self._out, err=self._err)
matlab.engine.MatlabExecutionError: Too many output arguments.

main function looks something like the below

function main()
    create_stuff();
    simulate();
end

I am not sure why the above error is returned.

Suggestions will be helpful.

[Ameer Hamza]

Try this

eng = matlab.engine.start_matlab()
eng.main(nargout=0)