Using Matlab in Python

Question

Rachael Hardman 2017-5-12

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/339980-using-matlab-in-python

评论： Seth Wagenman 2020-9-15

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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Answer 1

Nagarjuna Manchineni 2017-5-15

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/339980-using-matlab-in-python#answer_267138

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.