How do I install the python multiple version management tool pyenv?

hoodedvul

Links to pyenv github:
https://github.com/pyenv/pyenv/wiki/common-build-problems
https://github.com/pyenv/pyenv-installer
https://github.com/pyenv/pyenv

pyenv - manages multiple versions of python.

Note: One of the main reasons for using this tool is linux has a built-in version of python, which is tightly integrated with the operating system. It is important not to modify this version of python for things like operating system updates. This is not the only benefit of using pyenv.

This article describes how to install pyvenv using the automatic installer on Ubuntu 20.04 LTS.

Make sure you have the ubuntu pre-reqs installed.

sudo apt-get install -y build-essential libssl-dev zlib1g-dev libbz2-dev libreadline-dev libsqlite3-dev wget curl llvm libncurses5-dev libncursesw5-dev xz-utils tk-dev libffi-dev liblzma-dev python-openssl git

Run the automatic installer script.

$ curl https://pyenv.run | bash

Add the following lines to your .bashrc and restart your shell.

# Environment for pyvenv
export PATH="$HOME/.pyenv/bin:$PATH"
eval "$(pyenv init -)"
eval "$(pyenv virtualenv-init -)"

Test it looks ok.

$ pyenv --version

When you need to update, run the following.

$ pyenv update

If you need to remove the pyenv environment.

$ rm -rf /home/<user>/.pyenv

Delete the lines from your .bashrc file.

# Environment for pyvenv
export PATH="$HOME/.pyenv/bin:$PATH"
eval "$(pyenv init -)"
eval "$(pyenv virtualenv-init -)"