Aside from my wishes, should the script fail in this fashion
> (rather than being more gracefully rejected)? I realize we
> have been warned against using show() multiple times ...
We've taken pains to protect against multiple calls to show. If you
can provide a script which replicates the problem. Please test
against the latest matplotlib, preferably the next release, due out
tomorrow barring the unexpected (which is never expected).
> Somewhat related: can I control the order in which figures
> are displayed when the show() command is given, or will the
> highest numbered figure always display on top?
This may be backend dependent, I haven't tested it. But if it is the
highest figure on top you should be in good shape, right?, because you
can provide the figure numbers in the order you want the figures
to appear, bottom to top.