Message matplotlib not installed

[FrisoBroekhuizen]

on windows 11 with julia 1.10, when running this script create_sys_image, the message appears even though it is already installed.

[ufechner7]

Same problem on Linux. This code does not work any longer:

PYTHON_PATH=$(which python3)
if [ -x "$PYTHON_PATH" ]; then
            echo "Matplotlib found. Using existing installation."
            export PYTHON=$PYTHON_PATH

[1-Bart-1]

Still works for me on Linux, with matplotlib installed in a virtual environment. @FrisoBroekhuizen and @ufechner7 how did you install python and matplotlib? And can you try running python3 and importing matplotlib in the terminal, and check the result?

% python3
Python 3.12.3 (main, Jan 17 2025, 18:03:48) [GCC 13.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import matplotlib
>>> 

[ufechner7]

   Resolving package versions...
  No Changes to `~/.julia/environments/v1.10/Project.toml`
  No Changes to `~/.julia/environments/v1.10/Manifest.toml`
Python is found at /home/ufechner/miniconda3/bin/python3
Matplotlib is not found.
Do you want to install matplotlib with Conda? (y/n): y

On the command line it works:

ufechner@framework:~$ python3
Python 3.12.3 (main, Jan 17 2025, 18:03:48) [GCC 13.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import matplotlib
>>> 

But on the command line it is also using a different version of python:

ufechner@framework:~$ which python3
/usr/bin/python3

[1-Bart-1]

So that would mean that you don't have matplotlib installed in your Conda environment? Could you try running /home/ufechner/miniconda3/bin/python3 and import matplotlib there?

[ufechner7]

ufechner@framework:~$ /home/ufechner/miniconda3/bin/python3
Python 3.11.5 (main, Sep 11 2023, 13:54:46) [GCC 11.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import matplotlib
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'matplotlib'
>>> 

But I don't understand why the script is trying to use a different Python version.

UPDATE:
Now I understand: If I use bash in VSCode, than it says:

ufechner@framework:~/repos/Tethers.jl$ which python3
/home/ufechner/miniconda3/bin/python3

If I use Bash in the normal terminal it says:

ufechner@framework:~$ which python3
/usr/bin/python3

[1-Bart-1]

Does that solve the issue? Or should we add a command line arg to the script where you can specify the python path you want to use.

[1-Bart-1]

So the solution for @ufechner7 would be to install matplotlib through the VSCode terminal.

[ufechner7]

Not really. I don't want to have multiple Python3 installations. I would like to teach VSCode not to mess with the search path.