herolib_python/examples/tmuxrunnerexamples/functions/hpy.sh

hpy() {
    if [ ! -f ".venv/bin/activate" ]; then
        echo "Error: .venv not found in current directory" >&2
        return 1
    fi

    # Activate venv in a subshell so it doesn’t pollute caller
    (
        source .venv/bin/activate
        python "$@"
    )
}