Why Pip is not listed in the official Global Python Module index?

[snippsat]

Pip is a package manager/installer for Python modules/packages.
So it's a step above modules/packages,as it been used to install 3-party modules/packages.

pip are under the wings of Python Packaging Authority (PyPA).
One of the goals of PyPA:

To improve the docs for users, including the Python Packaging User Guide, anything related to packaging on docs.python.org,
and the project docs for pip, setuptools, virtualenv, and wheel.