Python 2 is the legacy version of Python.
https://webinstall.dev/pyenv| Installer Source| Releases (json) (tab)
To update or switch versions, run pyenv install -v 2 (or 2.6, etc).
Files
These are the files / directories that are created and/or modified with this install:
~/.config/envman/PATH.env
~/.pyenv/bin/
~/.pyenv/shims/
# pyenv also loads shell hooks via
~/.bashrc
~/.config/fish/config.fish
~/.zshrc
How to Install python2 on macOS
Install Xcode tools first:
xcode-select --install
How to Install python2 on Linux
Make sure that you already have the necessary build tools installed:
# required
sudo apt update
sudo apt install -y build-essential zlib1g-dev libssl-dev
# recommended
sudo apt install -y libreadline-dev libsqlite3-dev \
libffi-dev libbz2-dev liblzma-dev
Cheat Sheet
Unless you know you need Python 2 for a specific purpose, you should probably use Python 3 instead.
For more info see these cheat sheets: