Originally there was distutils, but then setuptools and packaging took over.
General overview:
https://packaging.python.org/overview/
https://pypi.org/project/packaging/
https://setuptools.pypa.io/en/latest/setuptools.html
The are just python.py files
Don't:
It is a python module that can contain other modules or other import packages.
It is refered as a "package", but can be confused with a "Distribution package"
https://packaging.python.org/tutorials/packaging-projects/
A shareable list:
https://bheisler.github.io/post/calling-rust-in-python/
https://numpy.org/doc/stable/reference/routines.linalg.html
https://github.com/moble/quaternionic
https://www.programcreek.com/python/example/125385/numpy.quaternion
https://docs.ros2.org/latest/api/rclpy/index.html
https://github.com/matthew-brett/transforms3d
https://github.com/scipy/scipy/tree/master/scipy/spatial
https://rock-learning.github.io/pytransform3d/api.html#module-pytransform3d.coordinates
https://pypi.org/project/transformations/
https://petercorke.github.io/spatialmath-python/spatialmath.html
numpy.set_printoptions(formatter={'float': '{: 0.3f}'.format}, precision=3, suppress=True)
%load_ext autoreload
%autoreload 2
https://ipython.org/ipython-doc/3/config/extensions/autoreload.html
https://matplotlib.org/2.0.2/examples/axes_grid/demo_parasite_axes2.html
https://matplotlib.org/2.0.2/examples/axes_grid/demo_parasite_axes2.html