Users are typically migrating from py3_image
in rules_docker.
(There is also an older py_image rule that's meant for Python 2, which is end-of-life and not considered here).
- https://github.com/aspect-build/bazel-examples/tree/main/oci_python_image: shows how the image can be composed of three layers: interpreter,
site-packages, and application.