Install Docker:

wget -qO- https://get.docker.com/ | sh

Add your username to docker group to run docker commands without sudo:

sudo usermod -aG docker yourusername

Here, logout from your machine (warning: this will close all your active windows). After logging in you can check if Docker is installed by running a dummy container (this will download a container named 'hello-world'):

docker run hello-world

Install dockerized python containers. Just for comparison, I installed two versions. See official python images list here

docker pull python:3.5.2-alpine
docker pull python:3.5.2-slim

Example -- read hostname:

docker run python:3.5.2-alpine python -c "from socket import gethostname; print(gethostname())"

Example -- read installed modules:

docker run python:3.5.2-slim python -c "help('modules')"