df = ps.DataFrame([[5.1, 3.5, 0], [4.9, 3.0, 0], [7.0, 3.2, 1],
                   [6.4, 3.2, 1], [5.9, 3.0, 2]],
                  columns=['length', 'width', 'species'])
fig = df.plot.scatter(x='length', y='width')
fig.update_layout(template="plotly_dark")  # doctest: +SKIP