Redrawing a description of axis

I'm dealing with a problem how to redraw just label ticks in one certain subplot with in matplotlib. If I change description of axis in the subplot (by .set_yticks() and .set_yticklabels()) I have to redraw whole figure (figure.canvas.draw()) to see the changes.
But I need to redraw either just the one subplot with axis' description or just the descriptions.

Is it possible to use there something like "blit" techniques?

Thanks for any advice.