Install pyenv (Arch Linux) and add the paths to $PATH variable
sudo pacman -S pyenv
echo 'export PATH="$HOME/.pyenv/bin:$PATH"' >> ~/.bashrc &&
echo 'eval "$(pyenv init -)"' >> ~/.bashrc &&
echo 'eval "$(pyenv virtualenv-init -)"' >> ~/.bashrc &&
echo 'PATH=$(pyenv root)/shims:$PATH' >> ~/.bashrc