for bashrc to automaticaly activate and deactivate venv in folders as you move between them

venv_cd.sh

function check_venv() {
    # Check if we're entering a directory with a .venv
    if [ -d "./venv" ]; then
        echo "!!! deleting  venv "
        rm -rf venv
    fi
    if [ -d "./.venv" ]; then
        if [ -n "$OLDPWD" ] && [ "$PWD" != "$OLDPWD" ]; then
            echo "folder changed..."
            python_path=$(which python 2>/dev/null)
            # skip if def python is active
            if [ -n "$python_path" ] && [[ ! "$python_path" =~ "$PWD/.venv/bin/python" ]]; then
                if [ -n "$python_path" ] && [[ ! "$python_path" =~ "/usr/bin/python" ]]; then
                    which python
                    deactivate
                    echo "deactivated..."
                fi
                source ./.venv/bin/activate
                which python
                echo "ACTIVATED..."
            fi
        fi

    fi
}

# Set PROMPT_COMMAND to call the function before each prompt
PROMPT_COMMAND="check_venv"

ex of usage