using py-ffmpeg-warp on Mac

Trying to run py-ffmpeg-warp on the Mac mini, ran into module not found errors.

ModuleNotFoundError: No module named '_tkinter' on mac

had the simple solution as suggested in stackoverflow,

brew install python-tk 

But other modules like scipy, pillow, etc could not be installed this way. ChatGPT suggested a virtual environment to avoid breakage.

1. Create a venv (once per project)

python3 -m venv ~/venvs/gui_env

(this path is just an example.)

2. Activate it

source ~/venvs/gui_env/bin/activate

prompt changes to something like:

(gui_env) %

3. Install the required packages

python -m pip install --upgrade pip

python -m pip install numpy scipy pillow

So, when I want to run py-ffmpeg-warp, I could run the following manually - 

source ~/venvs/gui_env/bin/activate

cd /home/path/to/py/script

python3 py-ffmpeg-warp.py

Or maybe even put those lines in a script as mentioned at https://linuxconfig.org/how-to-use-a-bash-script-to-run-your-python-scripts