Pyenv Notes
Functions and Reasons for Using pyenv
pyenv is a tool used to install various versions of Python on a system,
and to conveniently switch between Python versions.
When you need to develop or maintain projects that require different Python versions simultaneously,
you will need to use pyenv to help switch Python versions.
New Python versions usually include syntax updates or new features.
For example, Python’s async / await feature appeared only in Python 3.5 and later.
