Btw. if you want to build a docker-image with python you can extend the default n8n image and extend it.
For that create a file name Dockerfile with this content:
FROM n8nio/n8n
RUN apk add --update python3 py3-pip
And then run in the same folder the following command to build it:
docker build -t n8n-python .
If you then use this image, you will be able to run python scripts (be aware that you would have to use the command python3 and not python).