git clone https://github.com/pyenv/pyenv.git ~/.pyenv export PYENV_ROOT="$HOME/.pyenv" export PATH="$PYENV_ROOT/bin:$PATH" eval "$(pyenv init -)" source ~/.bashrc source ~/.zshrc pyenv install --list pyenv install 3.9.4 pyenv global 3.9.4 pyenv local 3.9.4 pyenv virtualenv 3.9.4 myenv pyenv activate myenv pyenv deactivate pyenv virtualenv-delete myenv