Script to deactivate virtual environments for bash or zsh

deactivate

# >>> Virtual env deactivate hook >>>

# Same as deactivate in "<venv>/bin/activate"
deactivate () {
    if [ -n "${_OLD_VIRTUAL_PATH:-}" ] ; then
        PATH="${_OLD_VIRTUAL_PATH:-}"
        export PATH
        unset _OLD_VIRTUAL_PATH
    fi
    if [ -n "${_OLD_VIRTUAL_PYTHONHOME:-}" ] ; then
        PYTHONHOME="${_OLD_VIRTUAL_PYTHONHOME:-}"
        export PYTHONHOME
        unset _OLD_VIRTUAL_PYTHONHOME
    fi
    if [ -n "${BASH:-}" -o -n "${ZSH_VERSION:-}" ] ; then
        hash -r 2> /dev/null
    fi
    if [ -n "${_OLD_VIRTUAL_PS1:-}" ] ; then
        PS1="${_OLD_VIRTUAL_PS1:-}"
        export PS1
        unset _OLD_VIRTUAL_PS1
    fi
    unset VIRTUAL_ENV
    unset VIRTUAL_ENV_PROMPT
    if [ ! "${1:-}" = "nondestructive" ] ; then
        unset -f deactivate
    fi
}

# Initialize the variables required by deactivate function
_OLD_VIRTUAL_PS1="${PS1:-}"
_OLD_VIRTUAL_PATH="$PATH"
if [ -n "${PYTHONHOME:-}" ] ; then
    _OLD_VIRTUAL_PYTHONHOME="${PYTHONHOME:-}"
fi

# <<< Virtual env deactivate hook <<<

Link to the original gist: https://github.com/microsoft/vscode-python/wiki/Fixing-%22deactivate%22-command-for-Virtual-Environments