ensurepip usage

The usage of ensurepip is fairly straightforward. Just run python -m ensurepip to guarantee a pip version or python -m ensurepip --upgrade to make sure that pip will be at least the version that is bundled with ensurepip.

In addition to installing the regular pip shortcut, this will also install the pipX and pipX.Y links, which allow you to select a specific Python version. When using Python 2 and Python 3 simultaneously, this allows you to install packages within Python 2 and Python 3 with pip2 and pip3, respectively. This means that if you use python -m ensurepip on Python 3.5 you will get pip, pip3, and pip3.5 commands installed in your environment.