venv auto cd handling for 0to100 folder

venv_cd.sh

function venv_cd() {
    # set -x
    if [[ $PWD == */0to100* ]]; then
        echo "0to100 folder..."
        if [[ -d .venv ]]; then
            if [[ "$VIRTUAL_ENV" == "$PWD/.venv" ]]; then
                echo "using $VIRTUAL_ENV"
            else
                deactivate || true
                source .venv/bin/activate
                echo "new $VIRTUAL_ENV..."
            fi
        fi
    fi
    # set +x
}

PROMPT_COMMAND=venv_cd