Error in Manjaro Linux during installation with Python3

[ktrls]

Hi,
I'm trying to install GIMPML for GIMP 3 but the install.bat returns an error.

error: externally-managed-environment

× This environment is externally managed
─> To install Python packages system-wide, try 'pacman -S
python-xyz', where xyz is the package you are trying to
install.

_If you wish to install a non-Arch-packaged Python package,_
_create a virtual environment using 'python -m venv path/to/venv'._
_Then use path/to/venv/bin/python and path/to/venv/bin/pip._

_If you wish to install a non-Arch packaged Python application,_
_it may be easiest to use 'pipx install xyz', which will manage a_
_virtual environment for you. Make sure you have python-pipx_
_installed via pacman._

note: If you believe this is a mistake, please contact your Python installation or OS distribution provider. You can override this, at the risk of breaking your Python installation or OS, by passing --break-system-packages.
hint: See PEP 668 for the detailed specification.
Traceback (most recent call last):
File "", line 1, in
import gimpml; gimpml.setup_python_weights()
^^^^^^^^^^^^^
ModuleNotFoundError: No module named 'gimpml'
chmod: impossibile accedere a 'gimpenv3/lib/': File o directory non esistente

I have Manjaro Linux updated to 25 version, Python 3.13.2 and pip 25.0.1

Thanks for any help