matplotlib fivethirtyeight créant une signature

# Assume the rest of the code is written
ax.text(-0.7, -2.9,
        '©DATAQUEST' + ' '*94 + 'Source: P. Cortez et al.',
        color = '#f0f0f0',
        backgroundcolor = '#4d4d4d',
        size=12)
rudythealchemist