My MATLAB 2022a not talking to Python 3.9.13

OK, the usual newby start-up problems. I downloaded Python 3.9.13 in hopes I could call Python routines from MATLAB. Not sure what else I have to do to so MATLAB can call (talk to) Python. The very first recommended step in the relevant MATLAB help documentation seems to be to issue the command "pyenv" in MATLAB. Here is the result I get:

=====================================================================================

>> pyenv

ans =

PythonEnvironment with properties:

Version: ""

Executable: ""

Library: ""

Home: ""

Status: NotLoaded

ExecutionMode: InProcess

=====================================================================================

Hmmm, not encouraging. Clearly, I need to do something else. But what? Is Python 3.9.13 not compatile with MATLAB 2022a?

Answer 1

[Mohammad Sami]

It seems that python is not your on paths list, hence its not auto detected by Matlab.

You can manually set the executable path using pyenv function so that Matlab can load python.

executable = 'C:\Users\xxxxxx\AppData\Local\Programs\Python\Python37\pythonw.exe';
pe = pyenv('Version',executable);

The variable executable specifies the full path to the Python executable. You can look for the path where you installed python.

[Ken Bannister]

OK Mohammad, many thanks, that seems to work! Here is what I get now after entering what you recommended (with a couple of minor changes you could not know about), and also what "pyenv" returns:

=============================================================================

>> executable = 'C:\Users\ken\AppData\Local\Programs\Python\Python39\pythonw';

pe = pyenv('Version',executable );

>> pyenv

ans =

PythonEnvironment with properties:

Version: "3.9"

Executable: "C:\Users\ken\AppData\Local\Programs\Python\Python39\pythonw.EXE"

Library: "C:\Users\ken\AppData\Local\Programs\Python\Python39\python39.dll"

Home: "C:\Users\ken\AppData\Local\Programs\Python\Python39"

Status: NotLoaded

ExecutionMode: InProcess

==================================================================================

[Ken Bannister]

Mohammad: I have done some trial runs with MATLAB calling Python and have gotten the expected results.

Many thanks once again!