Why Matlab does not see Python?

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Sergii Snegir
Sergii Snegir on 20 Feb 2022
Answered: Julian on 17 Aug 2023
I am trying to luch the python file using the pyrunfile, but got an error.
Verificatio of the python version all shows me the answer (see below), nevertheless that in comandn line i see Version 3.8.3:
What is the problem?
Thanks in advance
In Matlab:
>> pyversion
version: ''
executable: ''
library: ''
home: ''
isloaded: 0
CMD:
C:\Users\Sarr>python --version
Python 3.8.3

Answers (4)

Yongjian Feng
Yongjian Feng on 23 Feb 2022
matlab uses PATH env var to find python. Your python installation is in a local path. Try this in matlab command line:
getenv('PATH')
If the path to your python is not there, then set the PATH env var in matlab command line
setenv('PATH', new_path_with_python_location_added)
  4 Comments
Sergii Snegir
Sergii Snegir on 24 Feb 2022
thanks. I have tried.
The result is:
Yongjian Feng
Yongjian Feng on 24 Feb 2022
Sean suggested that you might need to check if you have installed a 32bit python. Start python from Windows command line like this. Your path shown above really looks like a 32bit. If so, you need to install a 64bit python to make it work.

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Abdurrahman Dayi
Abdurrahman Dayi on 23 Feb 2022
It might be the case that you are using a Matlab version that does not support python 3.8.
Kindly double check the supported python versions for your matlab version here: https://www.mathworks.com/content/dam/mathworks/mathworks-dot-com/support/sysreq/files/python-compatibility.pdf
  1 Comment
Sergii Snegir
Sergii Snegir on 23 Feb 2022
Thnaks for the answer. The version I have 2021b has to work with python 3.8 (according to support info)

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Sean de Wolski
Sean de Wolski on 23 Feb 2022
Looks like you have 32-bit python. You need 64-bit Python.

Julian
Julian on 17 Aug 2023
Have you tried installing Python not locally for your user, but for all users?
I have the same problem and wanted to try that now. Unfortunately I then no longer have my current environments.

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