Top 4 importlib open source projects

Violate Nix philosophy, install Python packages mid-session with `from nixpkgs.scipy import scipy`.

Simple and clear import hooks for Python - import anything as if it were a Python module

Black Magic to hook into setuptools and distutils for Extensions

Easy creation of custom import hooks to experiment on alternatives to Python's syntax; see https://aroberge.github.io/ideas/docs/html/