Axes cannot be animated using animation.py with blit

[hammer498]

When using animation.py with blit updates to axes are not drawn correctly. Tick marks update but labels do not as explained by this SO answer.

http://stackoverflow.com/a/10704274/852487

According to the answer, to fix this problem it seems line 792 in animation.py

bg_cache[a.axes] = a.figure.canvas.copy_from_bbox(a.axes.bbox)

needs to be changed to

bg_cache[a.axes] = a.figure.canvas.copy_from_bbox(a.axes.get_figure().bbox)
or perhaps
bg_cache[a.axes] = a.figure.canvas.copy_from_bbox(a.axes.clipbox)?

and line 798

ax.figure.canvas.blit(ax.bbox)

changed to

ax.figure.canvas.blit(ax.clipbox)