Ubuntu image 22.04 with python including pip3. Also with iproute2, curl and other tools. The image is localized for german.
A docker image should be as small as possible satisfying all dependencies. No easy task. My straightforward solution:
ubuntu:22.04 + python3-pip = ubuntu-python3:latest
The best Docker base image for your Python application (June 2023):
https://pythonspeed.com/articles/base-image-python-docker-images/