Python script within my MATLAB Function

Hello, I made a simple python function that takes a list of numbers, increments all elements of the list and return the new list.

I'm trying call this function in simulink with a MATLAB Function block. It works when I give a single constant to the MATLAB Function but when I give a 1-N vector to the MATLAB Function, I got this error : Conversion of MATLAB 'double' to Python is only supported for 1-N vectors.

So my question is : how can I enter a vector in a MATLAB Function with python code inside ?

This is my python script

def add(array):
    for i in range(len(array)):
        array[i] += 1
    return array

This the matlab code for the MATLAB Function

    function y = fcn(u)
        y = 0; % Has to be preassigned, otherwise Simulink throws an error
        coder.extrinsic('py.test.add') % Python functions have to be run extrinsically, meaning no C code generated
        y = py.test.add(u);
    end

This is de model is Simulink

Here is the error I got

Thank you for your help.

[William Pale]

NB : the python file name is test.py and has to be in the same directory of the matlab project

[William Pale]

And I'm using python 3.8 and MATLAB R2016b