Using CoolProp in MATLAB

Hi guys, I am currently using MATLAB 2023a and I have added CoolProp to MATLAB. But now I am trying to make a standalone app so others with no MATLAB on their computer can use it. But when I share my app their computer doesn't recognise CoolProp formulas. Is there any way I can make this work ? Thank you.

Answer 1

[Sai Teja G]

Hi Eray,

I understand that you want to run your app in other computers where MATLAB is not installed.

It is indeed possible, and you can achieve it by following the link provided below to ensure its functionality.

https://in.mathworks.com/matlabcentral/answers/780852-how-to-compile-a-standalone-app-which-requires-python

Hope it helps!

Answer 2

[hsin-yu]

I also encountered the same problem. I compiled the thermal property calculation APP on a computer with MATLAB, and packaged the APP and sent it to a user who did not have MATLAB. The user had python installed, but the python environment status was detected as not loaded. Therefore it cannot be calculated.

Is this because the APP cannot execute the command window ?

If the APP has this limitation, how to solve it?

------------------<my code>---------------------------------------------------------------

% Prompt the user for the Python installation directory and provide examples

default_python_dir = 'C:\Users\user\AppData\Local\Programs\Python\Python310\python.exe';

python_dir_cell = inputdlg('Please enter the directory where Python executable is located:', 'Python Directory', [1, 100], {default_python_dir});

python_dir = char(python_dir_cell);

% If the user cancels input, return

if isempty(python_dir)

return;

end

try

% Try to execute pyenv

pe = pyenv("Version", python_dir);

% Display Python environment information

disp(pe);

% Convert Python environment information to a string

pe_str = evalc('disp(pe)');

% Display Python environment information string

msgbox(pe_str, 'Python Environment');

% Determine whether to import CoolProp based on whether Python status is loaded

if strcmp(pe.Status, 'Loaded')

% Try to install CoolProp

[v, e] = pyversion;

cmd = [e, ' -m pip install --user -U CoolProp'];

system(cmd);

pause(0.1);

% Display success message box

msgbox('Connected successfully.', 'Success');

else

% Show error message box

msgbox('Python is not loaded. Please make sure Python version supports MATLAB.', 'Error');

end

catch ME

% If an error occurs, display an error message box

errorMessage = ME.message;

msgbox(errorMessage, 'Error', 'error');

end

[hsin-yu]

Success! Use Windows CMD to execute the coolprop connection command!

--------------------------------------------------------------------------

cmd_path = 'C:\WINDOWS\system32\cmd.exe';

command = ['"', cmd_path, '" /c "', python_dir, '" -m pip install CoolProp'];

% python_dir is your python.exe path.

--------------------------------------------------------------------------