cairo.context transform vertical text python
Cairo Tutorial: Tips and Tricks (Section #deform)
cr.save()
cr.scale(0.5, 1)
cr.arc(0.5, 0.5, 0.40, 0, 2 * pi)
cr.stroke()
cr.translate(1, 0)
cr.arc(0.5, 0.5, 0.40, 0, 2 * pi)
cr.restore()
cr.stroke()