However, the code base does not currently make heavy use of `super` (run `grep --include='*py' 'super(' lib/matplotlib -R` in the repo root).  I don't disagree it is useful, but if you want to put it in, then we need to make sure the _entire_ `Artist` class hierarchy gets it (it looks like there are 76 classes involved). which is probably more than we want to do with out a MEP.