matplotlib-0.54 Win98 crash

The good news is I can replicate it on my windows 98 box

    > (and a windows ME box). I've had no troubles on XP. It is
    > triggered by importing matplotlib.backends._gtkagg. That's
    > all I know so far, but I should be able to figure it out
    > from here.

I rewrote _gtkagg using cxx and this seems to have fixed the problem
(at least on my test systems). Flush the old, and try:

FYI, this should have your errorbar fixes in as well.

Good luck!