How to call a python program from matlabr2019a

Hi

I am trying to implement vader sentiment scores. In my earlier thread, Walter Roberson has provided me a python implementation link. As far as I understand, I need to connect to the python program from my matlab. But I have no clue from where to begin. Besides, when did I execute this from my matlab it shows error.

>> pyenv('Version','version')
Undefined function or variable 'pyenv'.

I have python 3.7.4 installed(64 bit) and I already added the path in the matlab as well. Would you please guide me how to resolve the issue and how to connect to the python function.

thanks,

Answer 1

[Nicolas B.]

Hey Saugata,

you should follow this guide from mathworks: Undefined variable "py" or function "py.command"

It helps you to ensure you have installed and configured Python correctly.

Regards

Answer 2

[Shrinidhi KR]

pyenv function is introduced in R2019b version. Hence you are getting the error in R2019a version as:

>> pyenv('Version','version')
Undefined function or variable 'pyenv'.

https://www.mathworks.com/matlabcentral/answers/485059-pyenv-function-not-found

You can use pyversion function for the same in R2019a version. This should return you the details regarding python version and interpreter.

https://www.mathworks.com/help/releases/R2019a/matlab/ref/pyversion.html