Installing MATLAB Engine API for Python

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Deepa Maheshvare
Deepa Maheshvare 2020-11-3
评论： Ameer Hamza 2020-11-3
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

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Ameer Hamza
Ameer Hamza 2020-11-3
编辑：Ameer Hamza 2020-11-3
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.
  2 个评论
Deepa Maheshvare
Deepa Maheshvare 2020-11-3
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
Ameer Hamza 2020-11-3
Try this
eng = matlab.engine.start_matlab()
eng.main(nargout=0)

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