Now, If you are using an older version of Python on Windows, you may need to install PIP manually. Pip is automatically installed with Python 2.7.9+ and Python 3.4+.

Traditionally, macOS has shipped with a version of Python installed, but never more recent than Python 2.7. This created problems when Python 3 arrived, as the two versions often conflicted.

As of Debian Buster (10x) and Ubuntu 18.04 LTS, Python 3 is the default version, but Python 2.7 will still be available for those wishing to install it. Fedora ...