Using Matlab in Python
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Rachael Hardman
le 12 Mai 2017
Commenté : Seth Wagenman
le 15 Sep 2020
Hello,
I'm trying to execute matlab functions in python using the Matlab python package. However, when running an example from the documentation, I am getting an error message. When I run the code:
import matlab
import matlab.engine
eng = matlab.engine.start_matlab()
a = matlab.double([1,4,9,16,25])
b = eng.sqrt(a)
print(b)
I get the error message:
File "<ipython-input-7-6ccc095b323c>", line 1, in <module>
runfile('/Users/rach/Google Drive/PHD/Programming/Winds/Trying.py', wdir='/Users/rach/Google Drive/PHD/Programming/Winds')
File "//anaconda/envs/netcdf/lib/python2.7/site-packages/spyder/utils/site/sitecustomize.py", line 866, in runfile
execfile(filename, namespace)
File "//anaconda/envs/netcdf/lib/python2.7/site-packages/spyder/utils/site/sitecustomize.py", line 94, in execfile
builtins.execfile(filename, *where)
File "/Users/rach/Google Drive/PHD/Programming/Winds/Trying.py", line 4, in <module>
a = matlab.double([1,4,9,16,25])
File "//anaconda/envs/netcdf/lib/python2.7/site-packages/matlab/mlarray.py", line 51, in __init__
raise ex
TypeError: 'NoneType' object is not callable
What does this error mean? Is it something to do with how I have installed everything?
Thanks, Rachael
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Réponse acceptée
Nagarjuna Manchineni
le 15 Mai 2017
Looking at the error message, I can see that you are using the python from the Anaconda distribution. This version of Python is not supported with MATLAB. CPython is the recommended Python distribution for use with MATLAB Engine for Python, as noted at the following links:
http://www.mathworks.com/help/matlab/matlab_external/system-requirements-for-matlab-engine-for-python.html http://www.mathworks.com/help/matlab/matlab_external/install-supported-python-implementation.html
I believe once you install the correct version you will not encounter the same issue.
3 commentaires
Juan Salcedo
le 18 Déc 2019
Can you elaborate. I am also using the Anaconda thing and want to run Matlab commands
Seth Wagenman
le 15 Sep 2020
This answer makes MATLAB work with a conda environment:
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